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Format, validate, and minify JSON data instantly

Write and preview Markdown with live rendering

Format, beautify, and minify SQL queries instantly

Format, beautify, validate, and minify XML documents instantly

Minify and beautify JavaScript, CSS, and HTML code instantly

Validate, format, beautify, and minify YAML documents instantly

Optimize SVGs by removing metadata, comments, editor data, and unnecessary attributes

Encode and decode Base64 strings with Unicode support

Convert colors between HEX, RGB, and HSL formats

Convert Unix timestamps to dates and back

Convert text between camelCase, snake_case, kebab-case, and more

Convert numbers between binary, octal, decimal, and hex

Convert between CSV and JSON formats with custom delimiters

Encode and decode URLs with encodeURIComponent and encodeURI

Convert between JSON and YAML for Kubernetes, Docker, and CI/CD configs

Encode and decode HTML entities, special characters, and symbols

Convert images to Base64 data URIs or decode Base64 back to images

Generate TypeScript interfaces and type aliases from JSON data

Convert between HTML and Markdown in either direction

Compress and resize images with adjustable quality — JPEG, WebP, and PNG

Convert text to binary, hexadecimal, octal, or decimal and decode back with UTF-8 support

Convert text into clean, URL-friendly slugs with Unicode transliteration and bulk mode

Convert cURL commands to JavaScript, Python, Go, PHP, Ruby, and Java code instantly

Convert JSON arrays to CSV with nested object flattening, column selection, and .csv download

Convert between TOML, JSON, and YAML — perfect for Cargo.toml and pyproject.toml

Base64, Base32, Hex, Binary, URL, and HTML encoding & decoding all in one tool

Convert HTML to JSX instantly — class to className, inline styles to objects, self-closing tags, SVG attributes, event handlers, and more

Generate typed code from JSON in 8 languages — Go, Python, Java, C#, Dart, Rust, Swift, Kotlin structs and classes

Convert CSS to Tailwind utility classes instantly — 100+ properties including layout, spacing, typography, borders, and effects

Convert SVG to JSX or a React/TypeScript component — camelCase attributes, style objects, forwardRef, memo, props spread

Convert OpenAPI 3.x and Swagger 2.0 specs to TypeScript interfaces and types with $ref resolution, allOf/oneOf/anyOf, enums, and API operation types

Convert JSON or JSON Schema to Zod validation schemas with $ref resolution, allOf/oneOf/anyOf, enum, format constraints, and required/optional fields

Convert GraphQL SDL schemas to TypeScript interfaces, types, enums, unions, and operations

Convert TypeScript to JavaScript — strip types, interfaces, enums, generics, and access modifiers to get clean JS output

Convert JSON arrays to SQL CREATE TABLE and INSERT statements for PostgreSQL, MySQL, and SQLite with automatic type inference

Convert SQL CREATE TABLE statements to TypeScript interfaces, Prisma schema, and Drizzle ORM definitions for PostgreSQL, MySQL, and SQLite

Convert your ESLint config to Biome — maps 100+ rules from core, TypeScript, React, JSX-A11y, and import plugins to biome.json

Convert Tailwind CSS utility classes to standard CSS — supports 500+ classes including spacing, layout, typography, transforms, and arbitrary values

Convert .env files to Docker Compose environment blocks, Kubernetes ConfigMaps, Secrets, and docker run flags with sensitive key detection

Convert JSON to XML and XML to JSON instantly — handles nested objects, arrays, attributes, CDATA sections, and XML declarations

Convert between px, rem, em, pt, vw, vh, and % — single values or batch-convert entire CSS files with configurable base font size

Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes

Generate random UUID v4 identifiers in bulk

Generate strong, secure random passwords

Generate placeholder text for designs and layouts

Create beautiful CSS gradients visually with live preview

Generate customizable QR codes from text or URLs

Generate harmonious color palettes using color theory algorithms

Design CSS box shadows visually with multiple layers, presets, and live preview

Build CSS flexbox layouts visually with live preview, item config, and presets

Build CSS grid layouts visually with columns, rows, gap, item placement, and presets

Design CSS border-radius visually with per-corner controls, unit selection, and presets

Design CSS text shadows visually with multiple layers, presets, and live preview

Build CSS keyframe animations visually with presets, live preview, and copy-ready code

Build Markdown tables visually with an interactive editor, CSV import, and alignment controls

Generate SEO, Open Graph, and Twitter Card meta tags with live Google and social previews

Generate .gitignore files from 50+ templates — Node.js, Python, Java, Go, Rust, and more

Build cron expressions visually — select frequency, time, and days to generate cron schedules

Generate favicons from text or emoji — download PNGs, SVG, Apple Touch Icon, and HTML tags

Build Tailwind CSS utility classes visually with live preview and component presets

Generate a customized privacy policy with GDPR, CCPA, cookies, analytics, and payment sections

Generate realistic fake JSON data for API testing with 30+ field types, preset templates, and schema builder

Generate professional GitHub README.md files with badges, installation steps, usage examples, and more

Generate robots.txt files with crawl rules for Googlebot, Bingbot, AI bots, and more — presets included

Generate Zod validation schemas from JSON — auto-detects emails, URLs, UUIDs, dates, and nested objects

Generate custom placeholder images for wireframes, mockups, and prototyping with custom dimensions and colors

Generate nginx configuration files — server blocks, SSL, reverse proxy, gzip, load balancing, and security headers

Convert text into ASCII art with 7 font styles — banner, block, shadow, slim, star, dot, lines — with comment wrapping for code

Generate regex patterns by describing what you need — 60+ curated patterns, visual composer, live tester, and pattern explanations

Build git commands visually with an interactive builder — branching, merging, rebasing, stashing, tags, and 80+ cheat sheet entries

Build Content Security Policy headers visually with framework presets, security analysis, and multi-format output for Nginx, Apache, Vercel, Netlify

Create beautiful code screenshots with 8 themes, syntax highlighting, customizable backgrounds, and window chrome — free Carbon/Ray.so alternative

Build structured AI prompts with templates, variables, and multi-format output for OpenAI, Anthropic, and Gemini APIs

Build MCP configuration files visually for Claude Desktop, Cursor, VS Code, Windsurf, and Claude Code with 16 server templates

Build and sign JSON Web Tokens with HMAC, RSA, and ECDSA algorithms — visual payload editor with expiration presets

Build TypeScript tsconfig.json visually with framework presets, explanations for every option, and one-click download

Generate package.json visually with framework presets, dependency editor, scripts, and module config

Generate HTTP security headers for Nginx, Apache, Vercel, Netlify, and Cloudflare with presets, security scoring, and multi-format output

Generate GraphQL schema definitions from JSON data with automatic type inference, Query/Mutation generation, and .graphql download

Build HTTP requests visually and generate code in cURL, JavaScript, Python, Go, Rust, and PHP — lightweight Postman/ReqBin alternative

Build HTML tables visually with an interactive editor — add rows, columns, header rows, captions, and styling. Export as plain HTML, inline CSS, or Tailwind classes

Create CSS clip-path shapes visually — circle, ellipse, inset, or polygon with draggable points. 13 shape presets, interactive preview, and production-ready CSS output

Build CSS filter effects visually — blur, brightness, contrast, grayscale, hue-rotate, invert, opacity, saturate, sepia, and drop-shadow with 12 presets and live preview

Decode and inspect JSON Web Tokens instantly

Test regular expressions with real-time match highlighting

Parse URLs into protocol, host, path, and query params

Compare two texts and see differences highlighted

Parse cron schedules into plain English with next run times

Count words, characters, sentences, and estimate reading time

Calculate Unix file permissions with an interactive permission matrix

Test JSONPath expressions against JSON data with real-time evaluation

Check WCAG 2.1 color contrast ratios for AA and AAA accessibility compliance

Validate JSON data against JSON Schema (Draft 07) with detailed error reporting and schema generation

Subnet calculator, VLSM divider, IP range to CIDR converter, and IP address classifier

Preview and debug Open Graph, Twitter Card, and SEO meta tags for social sharing

Run JavaScript and TypeScript code in your browser with instant console output

Compare two JSON objects and see structural differences — added, removed, and changed keys

Validate and format Docker Compose files — check services, networks, volumes, and dependencies

Complete HTTP status code reference — 1xx, 2xx, 3xx, 4xx, 5xx with detailed explanations and use cases

Test date format patterns for strftime, date-fns, Moment.js, Go, and Java with live preview and token reference

Validate and lint Dockerfiles for syntax errors, security issues, best practices, and layer optimization

Validate Kubernetes manifests for syntax, required fields, best practices, security, and resource limits

Validate OpenAPI 3.x and Swagger 2.0 specs for structure, paths, schemas, security, and best practices

Validate .env files for syntax errors, duplicate keys, security risks, and best practices — export .env.example templates

Compute MD5, SHA-1, SHA-256, SHA-384, SHA-512 file hashes — drag and drop to verify integrity with checksum comparison

Count tokens and estimate API costs for GPT-4o, Claude, Gemini, and other LLMs with BPE tokenization

Compare 23 AI models (Claude 4.6, GPT-4.1, Gemini 3) + 5 coding IDEs (Cursor, Copilot, Windsurf, Kiro, Antigravity) — pricing, context windows, capabilities

Visualize JSON as an interactive tree — collapsible nodes, search, path copy, depth controls, and data statistics

Paste unified diff output from git diff and view it with syntax highlighting, line numbers, and side-by-side or inline display

Test and compare Brotli, Gzip, and Deflate compression ratios for text content — sizes, savings, and speed

Analyze your tsconfig.json for TS 6.0 breaking changes, deprecated options, new defaults, and get a readiness grade with fixes

Scan JavaScript and TypeScript code for vulnerabilities — hardcoded secrets, injection, XSS, SSRF, prototype pollution, and 20+ security checks

Analyze JavaScript and TypeScript code for cyclomatic complexity, cognitive complexity, nesting depth, and maintainability index with per-function metrics

Validate GitHub Actions workflow YAML files for syntax, triggers, job structure, step config, needs dependencies, and deprecated actions

Calculate aspect ratios from any dimensions, resize while preserving proportions, and find equivalent sizes. Device presets for phones, tablets, monitors, and social media

Test XPath expressions against XML data with real-time evaluation — select elements, filter by attributes, navigate axes, and use XPath functions

Run SQL queries in your browser with a full SQLite database powered by WebAssembly — practice JOINs, CTEs, window functions, aggregations, and more