Developer tools
that respect your data.

Format and beautify JSON data instantly

Validate and lint JSON with detailed error messages

Compress JSON by removing whitespace

Convert JSON data to YAML format

Convert JSON arrays to CSV format

Convert CSV data to JSON format

Convert YAML to JSON format instantly

Convert JSON data to XML format

Convert XML documents to JSON format

Generate Go structs from JSON data

Convert JSON to Python dictionary syntax

Generate Java classes from JSON data

Validate JSON data against a JSON Schema

Test JSONPath expressions against JSON data

Explore JSON data as a collapsible tree

Compare two JSON documents structurally

Edit JSON interactively with a visual editor

View JSON arrays as sortable tables

Encode and decode Base64 strings instantly

Encode and decode URL components

Encode and decode HTML entities

Decode and inspect JSON Web Tokens

Encode and decode Base32 strings instantly

Apply ROT13 cipher to text

Convert text to and from Morse code

Convert between binary and text

Convert between hexadecimal and text

Convert ASCII characters to hex codes and back

Escape and unescape Unicode sequences

Encode and decode internationalized domain names

View UTF-8 byte sequences for any text

Convert text to Braille Unicode characters

Convert text to NATO phonetic alphabet

Encode and decode Base58 (Bitcoin) strings

Encrypt and decrypt text with a configurable shift

Decode SAML responses and assertions

Encode and build JSON Web Tokens

Convert Protobuf definitions to JSON Schema

Beautify and indent HTML code

Beautify and format CSS code

Beautify and format JavaScript code

Format and beautify SQL queries

Beautify and indent XML documents

Preview Markdown with live rendering

Compress CSS to reduce file size

Compress HTML to reduce file size

Beautify and format YAML documents

Beautify and format TOML configuration files

Beautify GraphQL queries and schemas

Beautify and format TypeScript code

Beautify and format Python code

Beautify and format PHP code

Format JSON5 with comments and trailing commas

Compress JavaScript to reduce file size

Compress XML to reduce file size

Compress SVG files to reduce size

Beautify and format Java code

Format Go code with gofmt-style indentation

Format Rust code with rustfmt-style indentation

Beautify and format Kotlin code

Beautify and format C and C++ code

Format Protocol Buffer definition files

Format Terraform configuration files

Format SQL with dialect-specific awareness

Generate random UUIDs / GUIDs instantly

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

Generate strong, random passwords

Generate bcrypt-style password hashes

Generate HMAC message authentication codes

Calculate file checksums via drag-and-drop

Generate MD5 hashes from text input

Generate SHA-256 hashes from text input

Generate RSA public/private key pairs

Generate cryptographically secure random numbers

Encrypt and decrypt text with AES-GCM

Generate memorable random passphrases

Generate compact, URL-friendly unique IDs

Identify hash algorithms from hash strings

Generate time-based one-time passwords

Count words, characters, sentences, and paragraphs

Test and debug regular expressions with live matching

Convert text between camelCase, snake_case, and more

Generate URL-friendly slugs from text

Compare two texts and highlight differences

Generate placeholder text for designs

Sort lines alphabetically and remove duplicates

Reverse text by character, word, or line

Repeat text N times with optional separator

Remove or normalize whitespace in text

Remove duplicate lines from text

Convert text to binary and vice versa

Calculate string length in chars, bytes, and encodings

Truncate text to a specified length with ellipsis

Find and replace text with regex support

Convert text to spoken audio in the browser

Search Unicode characters by name or code point

Detect hidden and invisible characters in text

Generate glitchy Zalgo text with combining characters

Flip text upside down using Unicode characters

Convert text to fancy Unicode styles

Convert numbers to English words

Extract email addresses and URLs from text

Extract specific columns from CSV data

Render text in handwriting-style font on canvas

Generate ASCII art text banners

Visualize regex as a railroad diagram with explanations

Get plain English explanations of regex patterns

Parse and analyze URL components

Complete list of HTTP status codes with descriptions

Searchable reference of HTTP headers

Searchable MIME types reference

HTTP methods (GET, POST, etc.) reference

Convert between IP formats (decimal, binary, hex)

Calculate CIDR ranges, subnet masks, host counts

DNS record types reference (A, AAAA, CNAME, etc.)

Generate CORS headers configuration

Generate HTML meta tags for SEO

Generate Open Graph meta tags

Generate JSON-LD structured data

Generate XML sitemaps from URL list

Generate .htaccess rules (redirects, rewrites, etc.)

Decode PEM certificates and show details

Construct and preview HTTP requests

Parse user agent strings into components

Convert curl commands to code (JS fetch, Python requests, etc.)

Preview HTML at multiple viewport sizes

Find your public IP address and browser info

Generate DNS lookup commands and learn about DNS records

Learn about WHOIS data and generate lookup commands

Format and analyze API responses

Convert between HEX, RGB, and HSL color formats

Create beautiful CSS gradients visually

Create CSS box shadows with a visual editor

Convert pixel values to REM units

Generate harmonious color palettes from any base color

Check WCAG contrast ratios between two colors

Browse and pick Tailwind CSS colors

Build CSS keyframe animations visually

Visual flexbox layout builder

Visual CSS Grid layout builder

Generate border-radius with visual preview

Generate text-shadow CSS with visual editor

Generate CSS triangles using borders

Generate CSS clip-path shapes

Generate CSS filter effects visually

Generate glassmorphism CSS effects

Customize scrollbar styles with CSS

Preview text in different web-safe and Google fonts

Generate CSS transforms visually

Simulate how colors appear with color vision deficiency

Preview Tailwind utility classes with live rendering

Create beautiful mesh gradients with multiple color points

Convert between Unix timestamps and dates

Convert between binary, octal, decimal, and hex

Convert between bytes, KB, MB, GB, and TB

Parse and generate CRON expressions

Convert between Celsius, Fahrenheit, and Kelvin

Convert between metric and imperial length units

Convert between metric and imperial weight units

Convert between m/s, km/h, mph, and knots

Convert between joules, calories, kWh, BTU, and eV

Convert between bps, Kbps, Mbps, and Gbps

Convert between degrees, radians, gradians, and turns

Convert YAML to TOML format

Convert TOML to JSON format

Convert TOML to YAML format

Convert INI files to JSON

Convert .properties files to JSON

Convert between square meters, acres, hectares, and more

Convert between liters, gallons, cups, and more

Convert between Pascal, bar, PSI, atm, and more

Convert between epoch milliseconds and dates

Convert Markdown to clean HTML

Convert HTML to Markdown syntax

Generate TypeScript interfaces from JSON

Generate C# classes from JSON

Generate Kotlin data classes from JSON

Generate Swift Codable structs from JSON

Generate Rust serde structs from JSON

Generate PHP classes from JSON

Generate Dart classes from JSON

Parse CREATE TABLE to JSON schema

Generate TypeScript types from OpenAPI/Swagger

Generate HTML tables with configurable rows and columns

Convert CSS properties to Tailwind classes

Convert SVG to CSS background-image data URI

Generate GraphQL type definitions from JSON

Build regex patterns from common presets

Convert crontab expressions to human-readable English

Validate YAML syntax

Validate TOML syntax

Convert HTML to React JSX syntax

Convert SVG markup to React components

Create markdown tables with a visual editor

Generate TypeScript types from SQL CREATE TABLE

Convert Markdown to a downloadable PDF

Write, format, and validate GraphQL queries

Validate OpenAPI specifications for errors

Generate QR codes from text or URLs

Convert images to Base64 data URIs

Generate placeholder images for mockups

Convert SVG files to PNG images

Resize images to custom dimensions

Crop images with a visual selection area

Compress images by adjusting quality

Generate favicons from an uploaded image

Pick colors from uploaded images

Convert images to ASCII art

Extract frames from GIF images

Convert short videos to animated frame sequences

Convert PNG images to JPG format

Generate Code 128 barcodes from text

Convert images between WebP, AVIF, PNG, and JPG

Optimize SVG files by removing metadata and cleaning paths

Extract dominant colors from an uploaded image

Wrap screenshots in browser or device frames

Remove backgrounds from images by color selection

Generate robots.txt files for your website

Generate Content Security Policy headers

Calculate Unix file permissions (rwx, octal, symbolic)

Generate .htpasswd entries for Apache basic auth

Generate RSA key pairs using Web Crypto API

Generate Subresource Integrity hashes for scripts and stylesheets

Generate PGP-style RSA key pairs in the browser

Check password strength with entropy calculation

Test CORS configuration by making fetch requests

Check and analyze HTTP security headers

Calculate the exact time between two dates

Add or subtract time from any date

Convert time between any timezones

See current time in cities worldwide

Convert between ISO 8601 and readable date formats

Find the ISO week number for any date

Calculate exact age from a birthdate

Count down to any date and time

Simple stopwatch with lap times

Convert between 12-hour and 24-hour time

Calculate working days between two dates

Convert between seconds, minutes, hours, and days

Convert dates between different format strings

Check if any year is a leap year

Full ASCII table with decimal, hex, octal, and character values

Searchable HTML entities table

Regex syntax quick reference

CSS selectors reference with examples

All named HTML/CSS colors with hex values and preview

Press any key to see its keyCode, key, and code values

Browse Unicode blocks and characters

All HTML5 tags with descriptions and categories

CSS units reference (px, em, rem, vw, vh, %, etc.)

Common Git commands organized by workflow

SQL syntax quick reference

Bash/shell commands quick reference

Look up any HTTP error code with explanation

Cron syntax quick reference with examples

Vim commands organized by mode

Emmet abbreviation quick reference

Docker & Docker Compose commands quick reference

Type a status code number for instant explanation

Generate .gitignore files from templates

Generate Dockerfiles from configuration options

Generate docker-compose.yml with services

Generate nginx server block configuration

Generate .editorconfig files for consistent coding styles

Generate .env files from templates

Generate GitHub Actions workflow YAML

Generate README.md files from a form

Generate open source license files

Format changelog entries in Keep a Changelog format

Parse, compare, and bump semantic versions

Generate package.json files for Node.js projects

Generate TypeScript configuration with presets

Generate ESLint configuration files

Compare two YAML documents line by line

Generate K8s manifests from a visual form

Calculate percentages, percent change, and ratios

Calculate and lock aspect ratios for width and height

Perform bitwise AND, OR, XOR, NOT, and shift operations

Full scientific calculator with trigonometric and logarithmic functions

Perform arithmetic on hexadecimal numbers

Perform arithmetic on binary numbers

Perform matrix addition, multiplication, transpose, and determinant

Calculate greatest common divisor and least common multiple

Check if a number is prime and find primes in a range

Generate Fibonacci sequence up to N terms

Convert numbers between any bases from 2 to 36

Convert between Roman numerals and decimal numbers

Convert IP addresses to decimal and back

Mix, blend, lighten, and darken colors with operations

Calculate PPI, aspect ratio, and megapixels from dimensions

Calculate DPI and print sizes from image dimensions

Check WCAG 2.1 color contrast ratios

Searchable reference of all ARIA roles

Guide for writing effective alt text

Check HTML heading structure for proper nesting

Calculate readability scores for your text

Generate WCAG-compliant color palettes

Analyze link text for accessibility issues

Visualize tab/focus order of HTML elements