Features

Test HTML, CSS and JavaScript code with live preview

Format code in 8 languages with Prettier and Python/Black

Validate JSON with detailed messages, navigable tree and JSONPath

Convert and validate JSON Schema

Format SQL queries with support for 7 dialects

Convert between CSS, SCSS and Sass with BEM grouping

Convert between JSON, XML, YAML and TOML

Generate UUID v4, v7, ULID and NanoID in batch with customizable options

Convert cURL commands to Fetch, Axios, Python and more

Deconstruct URLs and edit each part separately

Convert environment variables between .env, JSON, YAML and TOML

Compare semantic versions and test ranges

Generate fake documents compatible with JSON Schema

Count characters, words and tokens. 12 transformations available

Self-hosted TinyMCE editor with advanced formatting

Markdown editor with live preview and syntax highlighting

Generate placeholder text in Portuguese or English

Generate MD5, SHA-1, SHA-256, SHA-512 hashes with Web Crypto API

Generate secure passwords with customizable options and strength indicator

Decode JWT tokens and check expiration and claims

Analyze password strength and resistance locally

Read and inspect X.509 PEM/DER certificates

Generate and validate TOTP codes for authenticator apps

Encode/decode Base64, URLs and query params

Convert between HEX, RGB, HSL, HSV, CMYK with palette and shades

Convert between px, rem, em, %, vw, vh and pt

Encode/decode HTML entities with complete reference

Convert Unix, ISO 8601 and human-readable dates in real time

Convert between binary, octal, decimal and hexadecimal

Convert images to Base64 format

Compress images directly in the browser

Convert between PNG, JPEG, WebP and render SVG

Compress videos in the browser via FFmpeg.wasm

Convert raster images to vector SVG

Edit images with visual crop, brightness, contrast, saturation adjustments and more

Convert between PDF, DOCX, TXT, HTML, Markdown, RTF and EPUB

View 3D GLB/GLTF models in the browser with scene, material and texture inspection

Convert between CSV and JSON easily

Convert Unix timestamps and ISO 8601 dates

Convert titles to URL slugs removing accents and symbols

Calculate networks, broadcast and subnets for IPv4/IPv6

Convert Unix permissions between symbolic and octal

Read image metadata and remove sensitive data

Extract dominant colors from images

Check color contrast for accessibility

Generate favicons and app icons in multiple sizes

Optimize SVGs by removing unnecessary metadata

Group images into sprite sheets with coordinate maps

Generate and read barcodes in multiple formats

Extract text from images using local OCR

Minify and format CSS code

Minify and format JavaScript code

Minify and format HTML code

Test REST endpoints with different methods

Test WebSocket connections in real time

Test JSONPath expressions on JSON data

Validate and format YAML code

Validate and format XML code

Validate and format TOML code

Complete HTTP status code reference

Regular expressions reference

Git commands reference

MIME types reference

Advanced character counting with statistics

Text analysis with readability and density

Calculate CSS selector specificity

Test regular expressions with highlighting and 10 quick patterns

Compare two texts side by side with difference highlights

Create cron expressions visually with next executions

Generate custom QR Codes with colors, sizes and PNG/SVG download

Sort, shuffle, reverse and process lists with ease