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

Evaluate XPath expressions against XML/HTML documents

Generate TypeScript interfaces from JSON

Convert between SVG and React JSX

Convert Tailwind classes to CSS and back

Build .gitignore with presets for many languages

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

Convert certificates and keys between PEM, DER, PKCS#7 and PKCS#12

Encrypt and decrypt text with AES-256-GCM using Web Crypto, 100% in-browser

Generate HMAC signatures with SHA-1, SHA-256, SHA-384 and SHA-512

Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of local files

Identify the type of a hash: MD5, SHA-1, bcrypt, SHA-256 and more

Generate and verify bcrypt hashes with configurable cost

Generate secure passphrases from random words with entropy

Encrypt and decrypt with Caesar, Vigenère and Rail-fence

Generate RSA key pairs and export them as PEM

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

Compress PDFs in the browser with QuickTools or FileSlim

Recognize text in scanned PDFs and export text or a searchable PDF

Convert PDF pages into PNG, JPEG or WebP images

Extract images embedded in PDF files

Convert HEIC/HEIF photos to JPG or WebP in the browser

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

Convert Roman numerals and fractions to decimal and back

Convert coordinates between degrees/minutes/seconds and decimal

Calculate and scale screen ratios (16:9, 4:3, etc.)

Convert between XML and JSON bidirectionally

Convert HTML to Markdown with Turndown

Create CSS gradients visually and copy the code

Generate box-shadow, border-radius, and glassmorphism effects

Create interactive cubic-bezier easing curves

Convert CSV to a Markdown table

Write numbers as words in Portuguese or English

Remove the background of photos automatically with AI (U²-Net)

Swap the background for a solid color, gradient, image or white

Portrait effect: blur the background while keeping the subject sharp

Make the background black & white while keeping the subject colored

Cut out the subject and add a white border to create stickers

Create outlines, glows and outer shadows on cutouts

Smart crop for YouTube, Instagram, TikTok and more

White background, centered and high-resolution for e-commerce

Center the subject with a solid, gradient or circle background

Turn the cutout into a colored silhouette

Vectorize the cutout mask into SVG

Remove the background of many images at once and download as ZIP

Convert images into ASCII text art directly in the browser

Add text or logo watermarks to your images

Create memes with top and bottom text over any image

Convert SVG code into high-resolution PNG images

Turn multiple images into an animated GIF

See how people with color blindness view your images

Create pixel art and apply dithering to images

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

Validate CPF, CNPJ, CNH, RENAVAM, license plates, IE, CEP, CNS, PIX, boleto, credit cards, EAN, ISBN, IBAN, IMEI, ISIN, email, UUID and ULID

Validate card numbers with Luhn and detect the brand

Validate and format IBAN numbers with checksum verification

Validate and identify ISBN-10 and ISBN-13 numbers

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

Generate valid CPFs in batch with or without formatting. Download as TXT or XLSX.

Generate valid CNPJs in batch, old or new model, with or without formatting. Download as TXT or XLSX.

Compress and extract ZIP files directly in the browser with zip.js

Inspect files in hexadecimal with search and navigation

Identify file type from the first bytes (magic numbers)

Generate URLs with UTM parameters for marketing campaigns

Create .ics files to add events to Google Calendar and Outlook

Understand cron expressions and see next runs

Solve symbolic equations step by step

Calculator with trigonometry, logarithms and complex expressions

Visualize functions in interactive 2D and 3D graphs

Render LaTeX formulas in real time

Convert between temperature, pressure, mass and more units

View and analyze CSV data with interactive tables

Create charts and dashboards from raw data

Convert data between JSON, XML, CSV and YAML

Decode resistor color bands and calculate V, I, and R

Calculate BMI, GFR and health indicators

Convert medical units like mg/dL and mmol/L

Timer for PCR and clinical procedures

Calculate your basal metabolic rate (BMR) and daily energy expenditure (TDEE)

Calculate water intake, diet macros, and heart rate zones

Analyze readability with Flesch-Kincaid and metrics

Generate references in APA, MLA, Chicago and BibTeX

Calculate tips and split bills among friends

Calculate percentages, proportions and percent change

Simulate loans with the SAC and Price systems

Preview how links appear on Facebook, X, and WhatsApp

Focus timer with breaks and statistics

Convert between world timezones

Calculate the difference between two dates in years, months and days

Calculate exact age and the next birthday

Calculate work hours between two times, with a break