Free tools for
files, devs & the web

200+ tools. No signup. No servers. 100% private — everything runs in your browser. Works offline too.

🔒 100% Client-Side⚡ Works Offline💻 Install as App🔗 Shareable Links
Image & PDF
🗉

Compress Image

Reduce file size

Resize Image

Scale dimensions

🔄

Convert Image

JPG, PNG, WebP

🎨

Extract Colors

Dominant palette

📎

Merge PDFs

Combine files

Split PDF

Extract pages

📄

Image to PDF

Images as PDF

PDF Editor

Add annotations

BG Remover

Remove backgrounds

🖼

Placeholder

Generate placeholders

🔄

SVG Convert

SVG to PNG/JPG

Crop & Rotate

Crop and rotate images

📷

PDF to Image

Pages as images

📷

Watermark

Add text watermark

👁

EXIF Viewer

Photo metadata

64

Image to Base64

Data URI converter

Flip/Mirror

Flip & rotate images

Circle Crop

Circular image crop

Photo Collage

Combine multiple photos

Photo Editor

Brightness, contrast, filters

🖼

ICO Converter

Image to .ico favicon

DNS & Network
🌐

DNS Lookup

A, MX, TXT, CNAME

📡

DNS Propagation

Global resolver check

🔒

SSL Checker

Cert & expiry

📍

IP Lookup

Geo & ASN info

📋

HTTP Headers

Inspect response

Developer Tools

Cron Builder

Build & explain

🔐

JWT Decoder

Inspect tokens

{ }

JSON Formatter

Pretty-print & validate

📊

CSV ↔ JSON

Convert formats

.*

Regex Tester

Live match highlight

#

Hash Generator

MD5, SHA-256, SHA-512

64

Base64

Encode & decode

🔗

URL Encode

Encode & decode URLs

🔣

UUID Generator

Random v4 UUIDs

🕐

Unix Timestamp

Epoch converter

🗃

SQL Formatter

Format & prettify

📄

YAML ↔ JSON

Convert formats

📄

TOML ↔ JSON

Convert formats

<>

HTML Format

Prettify & minify

{ }

CSS Minifier

Minify CSS

JS

JS Minifier

Minify JavaScript

🔒

Chmod Calc

Permission builder

📋

HTTP Codes

Status reference

🕑

Cron Explainer

Cron to English

🔨

Git Builder

Build git commands

TS

JSON to TS

Generate interfaces

📊

CSV Viewer

Browse CSV data

$.

JSON Path

Query JSON paths

JSON Diff

Compare JSON objects

CURL to Code

fetch, axios, python

🕐

Epoch Batch

Bulk timestamp convert

🔐

JWT Generator

Create signed JWTs

.*

Regex Reference

Searchable cheat sheet

</>

HTML Preview

Live sandbox

.ht

Htpasswd Gen

Apache auth file

##

Password Hash

SHA-256, SHA-512

🏠

Subnet Calc

IP/CIDR math

Text & Content

Diff Checker

Compare text

Aa

Case Converter

camelCase, snake_case

🔢

Word Counter

Stats & reading time

📝

Lorem Ipsum

Placeholder text

QR Code

Generate QR codes

🏷

Meta Tags

SEO & Open Graph

🖼

Favicon Generator

8 sizes from image

🔑

Password Generator

Strong & random

🎨

Color Converter

HEX, RGB, HSL

📐

Aspect Ratio

Calculate dimensions

MD to HTML

Convert markdown

Char Map

Unicode symbols

01

Text to Binary

Convert text/binary

MD Table Gen

Markdown tables

😃

Emoji Picker

Searchable emoji grid

KB Shortcuts

VS Code, Vim, Chrome

📝

Notepad

Auto-saving online notepad

Utilities
📏

Unit Converter

Length, weight, temp

BMI Calculator

Body mass index

%

Percentage Calc

3 calculation modes

🍅

Pomodoro Timer

Focus sessions

Stopwatch

Timer & stopwatch

💵

Loan Calculator

Payment estimator

🍴

Tip Calculator

Split the bill

🎂

Age Calculator

Exact age from DOB

🌐

Timezone Converter

Convert time zones

💵

Paycheck Calc

Net pay breakdown

💰

Tax Calculator

Federal tax brackets

🎓

GPA Calculator

Cumulative GPA

Electricity Cost

Device running cost

Countdown Timer

Count down to any date

📅

Calendar Generator

Printable monthly/yearly

Converters
🔢

Base Converter

Bin, Oct, Dec, Hex

•–

Morse Code

Text to Morse

XIV

Roman Numerals

Number converter

&

HTML Entities

Encode & decode

\n

String Escaper

Escape & unescape

-

Slug Generator

URL-friendly slugs

Text Tools
M↓

Markdown Preview

Live render

A

ASCII Art

Text art generator

Line Sorter

Sort & deduplicate

📈

Text Statistics

Detailed analysis

🔁

Text Repeater

Repeat text N times

Design Tools
Aa

Font Pairing

Google Fonts combos

Spacing Scale

Consistent spacing

📏

Type Scale

Font size ratios

DevOps Tools

YAML Lint

Validate YAML

JSON Lint

Validate JSON

🔒

JWT Debugger

Decode & verify

🖼

Base64 to Image

Preview base64 images

Content Creator
📰

Headline Analyzer

Score your headlines

🎨

OG Image Maker

Social media images

🔄

Text Compare

Side-by-side diff

Only on Werkr

Key Event Tester

event.key, keyCode & more

👁

Color Blind Sim

Accessibility preview

🌊

Page Dividers

SVG section shapes

🤖

AI Token Counter

GPT, Claude, Llama

💳

Test Card Gen

Luhn-valid test cards

📊

HAR Analyzer

Debug network logs

Magic Detect

Auto-decode anything

🎡

Decision Wheel

Spin to decide

🎵

Tone Generator

Frequency & sound

💫

Glassmorphism

CSS glass effect

🎤

Speech to Text

Voice transcription

🔀

List Shuffler

Randomize any list

Popular Tools
🎲

Random Number

Generate random numbers

Fancy Text

Unicode font styles

Typing Test

WPM speed test

🔈

Text to Speech

Browser TTS voices

📈

Compound Interest

Investment calculator

📅

Date Calculator

Days between dates

🪙

Coin Flip & Dice

Random picker

Barcode Generator

Code128, EAN, UPC

📶

WiFi QR Code

Share WiFi instantly

🏠

Rent vs Buy

Compare housing costs

🔍

What Is My...

IP, browser, screen info

🐦

Fake Tweet

Generate tweet screenshots

📷

Code to Image

Beautiful code screenshots

YT Thumbnail

Grab YouTube thumbnails

💳

Subscription Calc

Track subscription spending

🎲

Fake Data Gen

Generate test data instantly

😂

Meme Generator

Create memes, no watermark

👁

Face Blur

Censor photos with one click

📱

Device Mockup

Wrap screenshots in frames

🧾

Invoice Generator

Professional invoices, free

📄

Resume Builder

Print-ready resume in minutes

📄

OCR

Image to text extraction

🔴

Screen Recorder

Record screen as WebM

🎬

Video Trimmer

Trim & extract frames

🎵

Audio Trimmer

Trim audio with waveform

🎵

Video to MP3

Extract audio from video

Signature Pad

Draw & download signature

🎨

Pixel Art

Draw pixel art on grid

📄

Flashcard Maker

Create & study flashcards

Handwriting

Text to handwriting image

Compress Image

Reduce file size. Runs in your browser.

🖼

Drop images here

JPG, PNG, WebP

About the Image Compressor

This free image compressor reduces JPG, PNG, and WebP file sizes without visible quality loss. All compression happens locally in your browser โ€” your photos are never uploaded to any server, making it the most private image compressor available.

Common uses: optimizing images for websites, reducing email attachment sizes, compressing photos before sharing on social media, and preparing images for faster mobile load times.

Resize Image

Scale to exact dimensions.

Drop images here

or click to browse

Pixels
Percentage

About the Image Resizer

Resize images to exact pixel dimensions or scale by percentage. This free online image resizer supports JPG, PNG, and WebP output formats with batch processing for multiple files at once. All resizing happens locally in your browser, so your photos are never uploaded to any server. No signup, no watermarks.

Whether you need to resize images for social media, prepare thumbnails for a website, or scale down photos before emailing them, this tool gives you precise control over the output dimensions. Lock the aspect ratio to prevent distortion, or set custom width and height values. Need to reduce file size instead? Try the Image Compressor.

Common uses: resizing photos for website thumbnails, scaling images to social media dimensions, preparing product images for e-commerce, and batch resizing photos for email attachments.

Convert Image

Convert between JPG, PNG, WebP.

🔄

Drop images here

or click to browse

About the Image Converter

Convert images between JPG, PNG, and WebP formats with adjustable quality. This free online image converter processes multiple files at once entirely in your browser. Your images are never uploaded to any server, ensuring complete privacy. No signup, no watermarks, no file size limits.

Different platforms require different image formats. Convert PNG screenshots to compressed JPEGs for email, transform JPGs to modern WebP for faster website loading, or switch to PNG for transparent backgrounds. Adjust the quality slider to balance file size and visual clarity. Need to change dimensions too? Use the Image Resizer.

Common uses: converting PNG screenshots to JPEG for smaller file sizes, transforming images to WebP for web performance, switching formats for platform compatibility, and batch converting images for a project.

Extract Colors

Dominant palette from any image.

🎨

Drop an image

or click to browse

Merge PDFs

Combine multiple PDFs into one document.

📎

Drop PDFs here

Add as many as you need

About the PDF Merger

Merge multiple PDF files into a single document online for free. This tool uses pdf-lib to combine PDFs entirely in your browser โ€” no file size limits, no uploads, and complete privacy for your documents.

Common uses: combining scanned documents, merging invoices and receipts, assembling multi-chapter reports, and consolidating presentation slides into one PDF.

Split PDF

Extract specific pages from a PDF.

Drop a PDF here

or click to browse

About the PDF Splitter

Extract specific pages from any PDF file for free. Enter a page range like "1-3, 5, 7-9" to pull out exactly the pages you need into a new, smaller PDF. This tool uses pdf-lib to process files entirely in your browser, so your documents are never uploaded anywhere. No signup, no file size limits.

Need to send just a few pages from a long report, or separate chapters from a combined document? This PDF splitter makes it fast and private. For the reverse operation, combine multiple PDFs into one with the PDF Merger.

Common uses: extracting specific pages from contracts or reports, separating chapters from combined documents, pulling out individual forms from multi-page PDFs, and reducing file size by removing unneeded pages.

Image to PDF

Convert images into a PDF document.

📄

Drop images here

JPG, PNG, WebP

PDF Editor

Add text, highlights, and rectangles to any PDF.

Drop a PDF here to edit

or click to browse

DNS Lookup

Query DNS records via Cloudflare DNS-over-HTTPS. No server needed.

DNS Propagation

Check a record across multiple global resolvers simultaneously.

SSL Checker

Check SSL certificate details and expiry via crt.sh public API.

IP Lookup

Geolocation, ASN, and ISP info for any IP address.

HTTP Headers

Inspect response headers for any URL via CORS proxy.

📋 Uses allorigins.win public proxy. For private URLs, run: curl -I https://example.com

Cron Builder

Build cron expressions visually with plain-English explanation.

Presets:
* * * * *
Runs every minute

Parse expression

Next 5 run times

JWT Decoder

Decode and inspect JSON Web Tokens. Never leaves your browser.

About the JWT Decoder

Decode and inspect JSON Web Tokens instantly in your browser. This free JWT decoder parses the header, payload, and signature sections of any JWT, displaying registered claims like expiration time, issuer, and subject. Your tokens never leave your device, making this the safest way to inspect JWTs online.

JSON Web Tokens are widely used for authentication and authorization in modern web applications. Whether you are debugging an OAuth flow, verifying token expiration, or inspecting claims from an identity provider, this tool breaks down every part of the token. Need to create tokens? Try the JWT Generator.

Common uses: inspecting authentication tokens during development, verifying JWT expiration and claims, debugging OAuth and SSO login flows, and checking token payloads from third-party APIs.

JSON Formatter

Pretty-print, validate, and minify JSON.

Input
Output

About the JSON Formatter

This free JSON formatter validates and beautifies JSON data instantly in your browser. Whether you're debugging an API response, reading a config file, or reformatting minified JSON, this tool handles it without sending your data to any server.

Common uses: prettifying API responses, fixing JSON syntax errors, minifying JSON for production, exploring nested data structures, and converting between compact and readable formats.

CSV ↔ JSON

Convert between CSV and JSON formats.

CSV → JSON
JSON → CSV
CSV
JSON

About the CSV to JSON Converter

Convert CSV files and data to JSON format, or transform JSON arrays back into CSV. This free online converter handles custom delimiters, header rows, and large datasets entirely in your browser. No file uploads, no signup, and complete privacy for your data.

Working with data often means switching between CSV spreadsheets and JSON for APIs or databases. Paste your CSV, upload a file, or input JSON arrays to get clean, instant conversions. Need to work with JSON data further? Try the JSON Formatter for validation and pretty-printing.

Common uses: converting spreadsheet exports to JSON for APIs, transforming API response data into CSV for Excel, migrating data between systems, and preparing datasets for database imports.

Regex Tester

Live regex matching with match highlighting.

//

Matches

Enter a pattern above

About the Regex Tester

Test and debug JavaScript regular expressions in real time with live match highlighting. Supports all regex flags (g, i, m, s, u, y) and shows match groups. Great for learning regex or debugging complex patterns.

Common uses: validating email and phone number formats, writing search and replace patterns, parsing log files, extracting data from text, and testing URL routing patterns.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes.

Text
File
MD5Not cryptographically secure
โ€”
SHA-1โ€”
SHA-256โ€”
SHA-512โ€”

About the Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files directly in your browser. This free online hash generator runs entirely client-side using the Web Crypto API, so your data is never transmitted to any server. No signup, no tracking, complete privacy.

Hashing is essential for verifying file integrity, storing password digests, and generating unique fingerprints for data. Paste any text or drop a file to instantly see hashes in all four formats. Need to hash passwords securely? Try our Password Hash Generator for salted hashing.

Common uses: verifying downloaded file checksums, generating content hashes for cache busting, comparing file integrity across systems, and creating unique identifiers from text input.

Base64 Encode / Decode

Encode and decode Base64 text and files.

Text
File
Input
Output

About the Base64 Encoder & Decoder

Encode and decode Base64 strings and files instantly in your browser. This free online Base64 tool handles both text-to-Base64 conversion and file encoding for embedding images, fonts, or other assets directly in HTML, CSS, or JSON. No signup required and your data never leaves your device.

Base64 encoding is widely used for transmitting binary data over text-based protocols. Whether you need to embed an image in an email template, decode a Base64 payload from an API, or convert a file for use in a data URI, this tool handles it with zero server interaction.

Common uses: embedding images in HTML/CSS as data URIs, decoding Base64 strings from APIs, encoding files for email attachments, and preparing binary data for JSON payloads.

URL Encode / Decode

Encode and decode URLs and query strings.

Input
Output

About the URL Encoder & Decoder

Encode and decode URLs and query strings online for free. This tool supports both encodeURI and encodeURIComponent modes, making it easy to prepare URLs for APIs, fix broken links with special characters, or decode percent-encoded strings. Everything runs in your browser with no data sent anywhere.

URL encoding replaces unsafe characters with percent-encoded equivalents so they can be safely transmitted in URLs. Whether you are debugging query parameters, building API requests, or working with Base64-encoded URL payloads, this tool gives you instant results.

Common uses: encoding special characters in API query strings, decoding percent-encoded URLs, preparing redirect URLs with parameters, and debugging malformed links.

UUID Generator

Generate cryptographically random v4 UUIDs.


About the UUID Generator

Generate RFC 4122-compliant UUID version 4 values using the browser's crypto.randomUUID() API. Generate one or hundreds at a time, copy to clipboard, and export as a list. No server required.

Common uses: generating primary keys for databases, creating unique identifiers for records and files, building correlation IDs for distributed systems, and creating session tokens.

Unix Timestamp

Convert between Unix epoch timestamps and human-readable dates.

Current Time

โ€”
Timestamp → Date
Date → Timestamp

Diff Checker

Compare two blocks of text line by line.

Original
Modified

About the Diff Checker

Compare two blocks of text side by side with color-coded difference highlighting. Useful for spotting changes between code versions, config files, or any text. Runs entirely in your browser โ€” no files uploaded.

Common uses: comparing code before and after refactoring, reviewing configuration changes, spotting edits between document versions, and debugging unexpected text mutations.

Case Converter

Convert text between different case styles instantly.

About the Case Converter

Convert text between uppercase, lowercase, title case, sentence case, camelCase, snake_case, kebab-case, and more. This free online case converter transforms your text instantly as you type. No signup needed and your text never leaves your browser.

Whether you are formatting headings, converting variable names between coding conventions, or standardizing text for a database, this tool covers all common case styles in one place. Paste your text and see every conversion at a glance. Need to count your words too? Use the Word Counter.

Common uses: converting headings to title case, transforming variable names between camelCase and snake_case, formatting CSV data to consistent casing, and preparing text for database imports.

Word Counter

Count words, characters, sentences, and estimate reading time.

0
Words
0
Characters
0
Sentences
0
Paragraphs
0m
Read time

About the Word Counter

Count words, characters, sentences, paragraphs, and estimate reading time for any text. This free online word counter updates in real time as you type or paste your content. No signup, no ads, and your text stays in your browser.

Writers, students, and content creators need accurate word counts for essays, blog posts, social media captions, and more. Paste your text to get an instant breakdown of all key metrics. Pair it with the Reading Time estimator for more detailed analysis.

Common uses: checking essay word counts for school assignments, verifying blog post length for SEO, counting characters for social media limits, and estimating reading time for articles.

Lorem Ipsum

Generate placeholder text for design mockups.

About the Lorem Ipsum Generator

Generate placeholder text for design mockups, wireframes, and prototypes. Choose between paragraphs, sentences, or words, and set the exact count you need. Optionally start with the classic "Lorem ipsum dolor sit amet" opening. Completely free, no signup, runs in your browser.

Lorem ipsum text is the industry-standard placeholder used by designers and developers worldwide. Whether you are building a website layout, testing typography, or filling a presentation template, this generator gives you exactly the amount of text you need. Combine it with the Word Counter to verify your output length.

Common uses: filling website mockups with realistic text, testing responsive layouts with varying content lengths, creating placeholder content for presentations, and populating design prototypes before real copy is ready.

QR Code Generator

Generate a QR code for any URL or text.

About the QR Code Generator

Generate QR codes for any URL, text, phone number, or email address instantly. Download as PNG or SVG, no watermark. Works offline after the first load โ€” your data stays in your browser.

Common uses: adding QR codes to business cards and flyers, linking print materials to websites, sharing contact information, WiFi credentials, and event check-in links.

Meta Tag Generator

Generate SEO and Open Graph meta tags.

0 / 160

Generated HTML

Favicon Generator

Generate multi-size favicons from any image.

🖼

Drop your logo here

Square PNG recommended

Password Generator

Strong random passwords. Generated in your browser.

About the Password Generator

Generate cryptographically secure random passwords using the browser's built-in crypto API. No passwords are sent to any server โ€” they're generated locally and never logged or stored anywhere.

Common uses: creating strong account passwords, generating temporary access codes, creating API secrets and tokens, and making memorable passphrases from word lists.

Color Converter

Convert between HEX, RGB, and HSL color formats.

CSS Snippets

Aspect Ratio Calculator

Calculate dimensions while preserving aspect ratio.

From Dimensions
From Ratio

Common Ratios

Number Base Converter

Convert between Binary, Octal, Decimal, and Hex.

Morse Code Encoder / Decoder

Convert text to and from Morse code.

Text
Morse Code

Roman Numeral Converter

Convert between integers and Roman numerals.

Integer
Roman Numeral

HTML Entity Encoder / Decoder

Encode and decode HTML entities.

Input
Output

String Escaper

Escape and unescape strings for JS, SQL, and Regex.

JavaScript
SQL
Regex
Escaped
JSON String

Slug Generator

Convert text into URL-friendly slugs.

About the URL Slug Generator

Convert any text into clean, URL-friendly slugs instantly. This free online slug generator handles special characters, accented letters, and whitespace to produce SEO-optimized URL slugs. Choose between hyphens or underscores, and switch between lowercase and uppercase output. No signup required.

Clean URLs are important for SEO and user experience. Instead of URLs with spaces, special characters, or encoded symbols, slugs provide readable, search-engine-friendly paths. Great for blog post URLs, product pages, and file names. Use it alongside the Case Converter for more text transformations.

Common uses: generating SEO-friendly URLs for blog posts, creating clean file names from titles, building URL paths for CMS systems, and converting product names to URL slugs.

Markdown Previewer

Live Markdown to HTML rendering.

Markdown
Preview

ASCII Art Generator

Convert text to ASCII art using classic figlet-style fonts.

Output

Line Sorter & Deduplicator

Sort, reverse, shuffle, and deduplicate lines of text.

Input
Output

Text Statistics

Deep analysis including Flesch readability score.

0
Words
0
Characters
0
Sentences
0
Syllables
โ€”
Flesch Score
โ€”
Grade Level
0
Avg Word Len
0m
Read Time

Loan Calculator

Calculate monthly payments and total interest.

Tip Calculator

Split the bill and calculate tips.

Quick:

Age Calculator

Calculate exact age and upcoming milestones.

About the Age Calculator

Calculate your exact age in years, months, and days from any date of birth. This free online age calculator also shows upcoming milestone birthdays and the number of days until your next birthday. No signup, no tracking, works instantly in your browser.

Whether you need your precise age for a form, want to know how many days until a milestone birthday, or are curious about your age in months, this tool gives you all the details in one place. You can also calculate the age between any two dates. Try the Timezone Converter for date and time across zones.

Common uses: calculating exact age for official forms, finding days until the next birthday, determining age differences between dates, and checking upcoming milestone birthdays.

Timezone Converter

Convert times across multiple timezones simultaneously.

robots.txt Generator

Build a robots.txt file for search engine crawlers.

Rules

Output

.htaccess Redirect Generator

Generate Apache redirect rules for .htaccess.

Redirects

Output

Sitemap XML Generator

Build a sitemap.xml for search engines.

URLs

Output

Email Signature Generator

Create an HTML email signature you can paste into Gmail, Outlook, or Apple Mail.

Preview
HTML to copy

Privacy Policy Generator

Generate a template privacy policy for your website or app.

What data do you collect?

Output

⚠ This is a template only. Have a lawyer review before publishing.

README.md Generator

Generate a structured README for your GitHub project.

Include Sections

Output

.gitignore Generator

Generate a .gitignore for your stack. Select everything that applies.

Select Technologies

Output

Crontab Validator

Validate and explain existing cron expressions. Paste one per line.

Background Remover

Remove image backgrounds in your browser. Adjust tolerance for best results.

🖼

Drop an image here

PNG, JPG, WebP

Placeholder Image

Generate placeholder images with custom dimensions, colors, and text.

SVG to PNG / JPG

Convert SVG files to PNG or JPG in your browser.

🔄

Drop an SVG file here

.svg files only

Crop & Rotate

Crop and rotate images in your browser.

Drop an image here

JPG, PNG, WebP

PDF to Image

Convert PDF pages to PNG images. Uses pdf-lib.

📷

Drop a PDF here

.pdf files

SQL Formatter

Pretty-print and format SQL queries.

Input SQL
Formatted

YAML ↔ JSON

Convert between YAML and JSON formats.

YAML → JSON
JSON → YAML
YAML Input
JSON Output

TOML ↔ JSON

Convert between TOML and JSON formats.

TOML → JSON
JSON → TOML
TOML Input
JSON Output

HTML Formatter

Prettify or minify HTML code.

Input HTML
Output

CSS Minifier

Minify CSS to reduce file size.

Input CSS
Minified

JavaScript Minifier

Basic JavaScript minification โ€” removes comments and extra whitespace.

Input JS
Minified

Chmod Calculator

Visual Unix file permission calculator.

Owner

Group

Others

755

HTTP Status Codes

Quick reference for all HTTP response status codes.

Cron Explainer

Enter a cron expression and get a plain English explanation.

Enter a cron expression above

Git Command Builder

Build common git commands with a visual interface.

git clone <url>

Click the command to copy

JSON to TypeScript

Generate TypeScript interfaces from JSON data.

JSON Input
TypeScript Interface

CSV Viewer

Drop a CSV file and browse it as a table.

📊

Drop a CSV file here

.csv, .tsv, .txt

Pomodoro Timer

Stay focused with 25/5 minute work-break cycles.

25:00
WORK SESSION
Sessions completed: 0

Stopwatch & Timer

Stopwatch with lap times and countdown timer.

Stopwatch
Countdown
00:00.000

Unit Converter

Convert between common units of measurement.

About the Unit Converter

Convert between common units of measurement for length, weight, temperature, data size, speed, area, volume, and time. This free online unit converter gives you instant results as you type, with a handy reference table showing all conversions at once. Runs entirely in your browser with no signup needed.

Whether you need to convert miles to kilometers, pounds to kilograms, or Fahrenheit to Celsius, this tool covers the most commonly used units across eight categories. Bookmark it for quick access whenever you need a fast, private, and accurate calculation.

Common uses: converting cooking measurements, translating metric and imperial units, calculating data storage sizes, and converting temperatures for travel or science.

BMI Calculator

Calculate your Body Mass Index.

Metric
Imperial
24.2 Normal weight
Underweight
<18.5
Normal
18.5–24.9
Overweight
25–29.9
Obese
≥30

About the BMI Calculator

Calculate your Body Mass Index using metric or imperial measurements. This free online BMI calculator gives you an instant result with a visual guide showing underweight, normal, overweight, and obese ranges. No signup needed, no data stored, completely private.

BMI is a widely used screening tool for assessing weight relative to height. Simply enter your height and weight to see where you fall on the BMI scale. While BMI does not measure body fat directly, it provides a useful starting point for health awareness. For unit conversions, try the Unit Converter.

Common uses: checking body mass index for health awareness, tracking BMI changes over time, filling in health-related forms, and comparing metric vs. imperial body measurements.

Percentage Calculator

Three common percentage calculations.

What is X% of Y?

X is what % of Y?

Percentage change from X to Y

Unicode Character Map

Search and copy Unicode characters and symbols.

Click a character to copy

Markdown to HTML

Convert Markdown to HTML with live preview.

Markdown Input
Preview
HTML Code

Image Watermark

Add text watermark to images. Runs in your browser.

📷

Drop an image

JPG, PNG, WebP

Color Palette

Generate harmonious color schemes from a base color.

CSS Gradient Generator

Build linear and radial gradients visually.

CSS Output

Box Shadow Generator

Build CSS box shadows visually.

CSS Output

Flexbox Playground

Visual flexbox layout builder with live preview.

CSS Output

CSS Grid Generator

Visual CSS grid builder.

CSS Output

Border Radius Generator

Visual corner radius builder.

CSS Output

Text to Binary

Convert text to binary and back. Live conversion.

Text
Binary

JSON Path Finder

Query JSON with dot-notation paths.

Result
Enter JSON and a path above.

Markdown Table Generator

Build markdown tables visually.

Markdown Output

Open Graph Preview

Preview social media card appearances.

Whois Lookup

Domain registration and ownership info.

Subnet Calculator

IP/CIDR math and subnet info.

Htpasswd Generator

Generate Apache .htpasswd entries using SHA-1.

Output
Enter username and password above.

Password Hash Generator

Generate SHA-256 and SHA-512 hashes for passwords.

EXIF Viewer

View photo metadata: camera, date, GPS, and more.

👁

Drop a JPEG image

Metadata stays in your browser

Image to Base64

Convert images to Base64 data URIs.

64

Drop an image

JPG, PNG, WebP, GIF, SVG

JSON Diff

Compare two JSON objects and see changes.

JSON A
JSON B

Regex Cheat Sheet

Searchable regular expression reference.

CURL to Code

Convert curl commands to JavaScript, Python, and more.

JS Fetch
Axios
Python
Code

Epoch Batch Converter

Convert multiple timestamps at once.

Data URI Generator

Convert any file to a data URI (Base64 encoded).

📁

Drop any file

Will be converted to a data URI

HTML Preview

Live HTML/CSS/JS sandbox. Like a mini CodePen.

HTML
CSS
JavaScript
Preview

JWT Generator

Create signed JSON Web Tokens using HMAC-SHA256.

JWT Token

Header

Signature

HMACSHA256(...)

Emoji Picker

Searchable emoji grid. Click to copy.

Favicon Checker

See the favicons used by any website.

Keyboard Shortcuts Reference

Common shortcuts for VS Code, Vim, Chrome, and more.

Color Picker

Interactive color picker with HEX, RGB, and HSL sync.

About the Color Picker

Pick any color and get its HEX, RGB, and HSL values instantly. This free online color picker syncs all three formats in real time as you adjust the color, making it easy to grab the exact value you need for CSS, design tools, or branding. No signup, no ads, works offline.

Designers and developers frequently need to convert between color formats. Use the visual picker or type in any HEX, RGB, or HSL value and the others update automatically. Copy the format you need with one click. For converting between more color formats, try the Color Converter.

Common uses: picking brand colors for web design, converting HEX to RGB for CSS, finding complementary colors for UI mockups, and copying color codes for graphic design projects.

Color Contrast Checker

Check WCAG contrast ratio between foreground and background colors.

Sample Text

HEX to RGB / HSL

Convert between HEX, RGB, and HSL color formats.

CSS Values

JSON ↔ XML

Convert between JSON and XML formats.

JSON → XML
XML → JSON
JSON Input
XML Output

HTML to Markdown

Convert HTML to Markdown syntax.

HTML Input
Markdown Output

.env Editor

Validate, sort, and clean .env files.

package.json Generator

Generate a formatted package.json file.

package.json

Docker Compose Builder

Select services and generate a docker-compose.yml file.

docker-compose.yml

tsconfig Generator

Configure TypeScript compiler options and generate tsconfig.json.

tsconfig.json

Keyword Density

Analyze word frequency and keyword density in your text.

Character Counter

Live character, word, sentence, and paragraph counter with social media limits.

Reading Time

Estimate reading time at various speeds.

Schema Markup Generator

Generate JSON-LD structured data for SEO.

JSON-LD Output

Remove Duplicate Lines

Deduplicate lines from text with options.

Text Reverser

Reverse text, reverse words, or flip text upside down.

Number to Words

Convert numbers to English words.

Words

Random String Generator

Generate random strings with custom character sets.

Password Strength Checker

Check password strength and estimated crack time.

Text Shadow Generator

Build CSS text-shadow visually with live preview.

Shadow Text
CSS Output

CSS Animation Builder

Build CSS keyframe animations with live preview.

CSS Output

Media Query Generator

Generate responsive CSS @media queries.

CSS Output

CSS Gradient Text

Apply gradient colors to text with live preview.

CSS Output

Scientific Calculator

Standard and scientific calculations with history.

0
History

Binary / Hex Calculator

Perform arithmetic in binary, hex, or decimal and see results in all bases.

Font Pairing

Find beautiful Google Font combinations for your projects.

The quick brown fox

The five boxing wizards jump quickly. Pack my box with five dozen liquor jugs. How vexingly quick daft zebras jump.

CSS Import

Spacing Scale

Generate a consistent spacing scale for your design system.

CSS Custom Properties

Type Scale

Generate a modular type scale with perfect proportions.

CSS Custom Properties

YAML Lint

Validate YAML syntax and find errors instantly.

JSON Lint

Validate JSON syntax and find errors with line numbers.

JWT Debugger

Decode, inspect, and verify JSON Web Tokens.

Base64 to Image

Preview and download images from base64 strings.

Headline Analyzer

Score your headlines for engagement and readability.

OG Image Maker

Create social media preview images (1200x630).

Text Compare

Side-by-side text comparison with highlighted differences.

Keyboard Event Tester

Press any key to see its event properties in real time.

Click anywhere in this panel, then press any key on your keyboard.
Press a key...
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โ€”
โ€”
โ€”
โ€”
โ€”
โ€”
โ€”

Event Log

Color Blind Simulator

See how images appear with different types of color vision deficiency.

👁

Drop an image here

or click to upload

CSS Page Divider Generator

Create beautiful SVG section separators for your website.

SVG Code

CSS Code

AI/LLM Token Counter

Estimate token count for GPT-4, Claude, and Llama models.

Est. Tokens
0
Characters
0
Words
0
Est. Cost (input)
$0.00
Token counts are estimates based on average characters per token. Actual counts may vary by ~10-15% depending on content.

Test Card Generator

Generate Luhn-valid test credit card numbers for development. These are NOT real cards.

⚠ These are Luhn-valid TEST numbers only. They cannot be used for real transactions.

HAR File Analyzer

Upload a .har file from browser DevTools to analyze HTTP requests.

📊

Drop a .har file here

Export from Chrome DevTools → Network → Export HAR

Magic Auto-Detect

Paste unknown encoded data and we'll figure out what it is.

Random Number Generator

Generate random numbers, dice rolls, coin flips, and more.


Quick Picks

Fancy Text Generator

Transform text into stylish Unicode fonts. Copy and paste anywhere.

Compound Interest Calculator

Calculate compound interest growth over time.

Future Value
$0
Total Interest
$0
Total Contributed
$0

Date Calculator

Find the difference between dates or add/subtract days.

Date Difference
Add/Subtract Days
Quick Counts

Coin Flip & Dice Roller

Flip coins, roll dice, and pick random choices.

🪙
Tap to flip!


Text to Speech

Convert text to speech using your browser's built-in voices.

Barcode Generator

Generate barcodes in various formats. Download as PNG or SVG.

About the Barcode Generator

Generate barcodes in Code 128, Code 39, EAN-13, EAN-8, UPC-A, ITF-14, and Codabar formats. Download your barcode as PNG or SVG for print or digital use. This free online barcode generator runs entirely in your browser with no signup, no watermarks, and no data sent to any server.

Whether you need barcodes for product labels, inventory management, or shipping labels, this tool supports all the major barcode formats used in retail and logistics. Customize the width, height, and text display to match your needs. For 2D codes, try the QR Code Generator.

Common uses: creating product labels with EAN or UPC barcodes, generating inventory tracking codes, printing Code 128 barcodes for shipping, and adding barcodes to event tickets or badges.

Typing Speed Test

Test your typing speed and accuracy. See your WPM in real-time.

WPM
0
Accuracy
100%
Time
60
Errors
0

About the Typing Speed Test

Test your typing speed and accuracy with this free online typing test. Track your words per minute (WPM), accuracy percentage, and error count in real time. Choose from 30-second, 60-second, or 2-minute sessions with easy, medium, or hard difficulty levels. No signup, no tracking, practice as often as you like.

Improving your typing speed saves time in every job that involves a keyboard. Take the test multiple times to track your progress over time with the built-in history feature. Compare your WPM against typical averages and challenge yourself with harder difficulty levels. Check your text metrics with the Word Counter.

Common uses: measuring typing speed for job applications, practicing to improve WPM, testing keyboard accuracy before data entry work, and tracking typing improvement over time.

Mortgage Calculator

Calculate monthly payments, total interest, and amortization for home loans.

About the Mortgage Calculator

Calculate monthly mortgage payments, total interest, and view an amortization breakdown for any home loan. This free online mortgage calculator includes property tax, home insurance, and HOA fees for a complete picture of your monthly housing cost. No signup, no ads, runs in your browser.

Planning to buy a home? Enter the purchase price, down payment, interest rate, and loan term to see exactly what your monthly payment will be. The amortization summary shows how your payments split between principal and interest over the life of the loan. Compare with the Loan Calculator for other types of loans.

Common uses: estimating monthly mortgage payments before buying a home, comparing 15-year vs. 30-year loan terms, calculating how down payment size affects monthly cost, and understanding total interest paid over the loan.

Calorie Calculator

Calculate your BMR, TDEE, and daily calorie needs for weight goals.

Metric
Imperial

Salary Calculator

Convert between hourly, daily, weekly, bi-weekly, monthly, and annual salary.

Discount Calculator

Calculate sale price, savings, and compare discounts.

Quick:

JSON to CSV

Convert JSON arrays to CSV format. Download or copy to clipboard.

JSON Input
CSV Output

XML Formatter

Beautify, minify, and validate XML. Format with custom indentation.

XML Input
Formatted Output

Decision Wheel

Add options and spin the wheel to make a random choice.

Tone Generator

Generate audio tones at any frequency. Useful for testing speakers, hearing, and audio equipment.

50%
Presets:
440 Hz
A4

CSS Glassmorphism

Generate frosted glass effects with live preview. Copy the CSS.

10px
20%
30%
Glass Card
This is a glassmorphism effect generated with CSS.
CSS Code

Speech to Text

Convert speech to text using your microphone. Powered by Web Speech API.

Click Start to begin listening

List Shuffler

Randomize, sort, reverse, or pick random items from a list.

0 items

WiFi QR Code

Generate a QR code guests can scan to join your WiFi. No typing passwords.

Rent vs Buy

Should you rent or buy? Compare total costs over time.

โ€”
Total Cost to Buy
โ€”
Total Cost to Rent

Year-by-Year Breakdown

What Is My...

Everything your browser reveals about you, in one place.

🌐 Network

💻 Device

📰 Browser

📷 Display

🔒 Privacy

⚙ Features

Fake Tweet Generator

Create realistic tweet screenshots for memes, presentations, or content. No real tweets are posted.

Code to Image

Turn code snippets into beautiful shareable screenshots.

YouTube Thumbnail Grabber

Extract any YouTube video thumbnail in all available sizes โ€” just paste the URL.

Subscription Cost Calculator

Track all your subscriptions and see how much you're really spending per year.

Fake Data Generator

Generate realistic fake names, emails, addresses and more. Perfect for testing and development.

Meme Generator

Create memes with your own images. No watermarks, no account needed.

🎭

Upload image

Any format

Photo Blur & Censor

Draw rectangles over faces or sensitive info to blur or pixelate them. Stays on your device.

📸

Upload image to censor

Device Mockup Generator

Wrap your screenshots in a phone, tablet, or browser frame. Download as PNG.

📱

Upload screenshot

Invoice Generator

Create professional invoices instantly. Print or save as PDF โ€” no account needed.

Line Items

About the Invoice Generator

Create professional invoices instantly with your business details, client information, line items, and tax. Click Print to open a clean, print-ready invoice in a new tab and save it as PDF. No account, no watermark, completely free.

Common uses: freelancers billing clients, small businesses creating invoices, consultants tracking project payments, and anyone who needs a quick professional invoice without signing up for software.

Resume Builder

Build a polished, ATS-friendly resume. Print or save as PDF โ€” 100% private, works offline.

Experience

Education

About the Resume Builder

Build a clean, ATS-optimized resume directly in your browser. Add work experience, education, and skills sections, then print to PDF with one click. Your data never leaves your device โ€” 100% private and works offline.

Common uses: creating resumes for job applications, updating an existing CV, building a resume for a career change, and exporting a printable PDF for recruiters.

Paycheck Calculator

Estimate your take-home pay after federal income tax, Social Security, Medicare, and state taxes.

About the Paycheck Calculator

Estimate your take-home pay after federal income tax, Social Security, Medicare, and state taxes. This free online paycheck calculator lets you adjust gross pay, pay frequency, filing status, and state tax rate to see exactly how much you will bring home each pay period. No signup, no data stored, completely private.

Understanding your net pay helps with budgeting and financial planning. Enter your gross salary per pay period, choose your filing status and frequency, then adjust the state tax slider to match your state. The calculator shows a clear breakdown of every deduction. For annual tax projections, try the US Income Tax Calculator.

Common uses: estimating take-home pay for a new job offer, comparing net pay across different pay frequencies, planning budgets based on after-tax income, and understanding the impact of filing status on deductions.

US Income Tax Calculator

Calculate federal income tax using 2024 tax brackets. See your effective and marginal rates.

GPA Calculator

Calculate your cumulative GPA on a 4.0 scale. Add courses, credits, and grades.

Electricity Cost Calculator

Calculate how much it costs to run any electrical device based on wattage and usage.

Image to Text (OCR)

Extract text from images using Tesseract.js. 100% client-side โ€” images never leave your device.

📄

Upload image for OCR

JPG, PNG, BMP, WebP

Screen Recorder

Record your screen directly in the browser. Download as WebM video.

Video Trimmer

Trim videos and extract frames. Upload a video, set start/end points, and download the trimmed clip or a frame.

🎬

Upload video to trim

MP4, WebM, MOV, AVI

Audio Trimmer

Upload an audio file, visualize the waveform, select a region, and export the trimmed audio as WAV.

🎵

Upload audio file

MP3, WAV, OGG, M4A

Flip / Mirror Image

Flip, mirror, and rotate images. Download the result as PNG.

Upload image

Circle Crop

Crop images into a perfect circle with transparent background. Download as PNG.

Upload image

Photo Collage Maker

Combine 2-9 images into a collage. Choose a layout, adjust spacing, and download as PNG.

Upload 2-9 images

Select multiple files

Text Repeater

Repeat any text string multiple times with a custom separator. Copy the result instantly.

0 characters

Photo Editor

Adjust brightness, contrast, saturation, blur, hue and opacity with live preview. Apply preset filters.

Upload an image to edit

JPG, PNG, WebP

Video to Audio

Extract audio from any video file as WAV. 100% client-side using Web Audio API.

🎵

Upload a video file

MP4, WebM, MOV, AVI

Online Notepad

Simple text editor that auto-saves to your browser. Your notes never leave your device.

Saved
0 chars · 0 words · 0 lines

Signature Pad

Draw your signature with mouse or touch. Download as transparent PNG.

Sign here

Countdown Timer

Count down to any date and time. Share the countdown link with others.

New YearChristmasHalloween

Pixel Art Maker

Draw pixel art on a grid. Choose colors, use pen, eraser, fill bucket, or eyedropper.

Flashcard Maker

Create flashcards, study with flip animations. Saved to your browser.

Calendar Generator

Generate printable monthly or yearly calendars. Download as PNG or print.

ICO Converter

Convert any image to a .ico favicon file with multiple sizes.

🖼

Upload an image

JPG, PNG, SVG, WebP

Text to Handwriting

Convert typed text into a handwriting-style image. Choose fonts, ink color, and paper style.

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