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22 categories · 488+ tools

{ } CSS Tools 88 tools { } JSON Tools 36 tools JS JavaScript Tools 40 tools </> HTML & Markdown Tools 29 tools #! Encoding & Crypto Tools 49 tools Aa Text & String Tools 28 tools ⇄ Data Converter Tools 24 tools ⚙ Code & Config Generators 35 tools ▸_ DevOps & Networking Tools 29 tools · Image Tools 16 tools · Network Tools 5 tools ◎ SEO & Web Tools 7 tools · AI & LLM Tools 16 tools 🔒 Security & Privacy Tools 13 tools · Validators & Parsers 12 tools · Code Formatters 22 tools · Code Transforms 10 tools []= Docker & DevOps Tools 8 tools · Utility & Math Tools 15 tools · Design & Typography Tools 4 tools · SEO & Structured Data Tools 1 tools · Crypto & Blockchain Tools 1 tools

Popular

most used tools

JSON Formatter

Format, minify, sort keys, and validate JSON. Syntax highlighting with line-precise error reporting.

Hash Generator

Compute MD5, SHA-1, SHA-256, SHA-512 hashes. Supports text, files, and HMAC.

UUID Generator

Generate UUID v4 and UUID v7. Bulk generation, multiple formats.

Epoch Converter

Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds.

Color Converter

Convert between HEX, RGB, and HSL color formats. Real-time preview and WCAG contrast checker.

URL Encoder / Decoder

Encode and decode URLs with percent-encoding. Parse any URL into protocol, host, path, and query parameters.

Base64 Encoder / Decoder

Encode text or files to Base64. Decode Base64 strings back to text. Supports URL-safe Base64 and data URIs.

Regex Tester

Test and debug regular expressions with real-time highlighting. Capture groups, replace mode, and common patterns.

Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences, or words. Classic, Hipster, and Tech variants with one-click copy.

JWT Decoder

Decode JSON Web Tokens — header, payload, and signature — with syntax highlighting. Inspect standard claims, check expiry, and verify HMAC signatures.

Diff Checker

Compare two texts and see exactly what changed. Side-by-side and unified views with character-level highlighting, line numbers, and diff statistics.

Crontab Generator

Build and validate cron expressions with a visual editor. See human-readable descriptions and preview the next 5 execution times instantly.

All Tools

516 tools across 22 categories

{ } CSS Tools 94
Color Converter CSS Unit Converter Aspect Ratio Calculator CSS Gradient Generator CSS Color Mix Generator CSS Accent Color Generator SVG Optimizer & Minifier CSS Minifier Color Palette Generator CSS Box Shadow Generator CSS Flexbox Playground CSS Grid Generator CSS Animation Generator CSS Border Radius Generator Image Color Picker CSS Text Shadow Generator Tailwind CSS Color Converter CSS Clip Path Generator CSS Filter Generator CSS Specificity Calculator CSS Variables Generator CSS Media Query Generator CSS Transition Generator Tailwind CSS Spacing Reference Color Contrast Checker Responsive Breakpoint Tester SVG to CSS Background Converter CSS Gradient Text Generator CSS Glassmorphism Generator CSS Neumorphism Generator CSS Box Shadow Generator PX to REM Converter CSS Counter Generator CSS Scroll Snap Generator CSS Columns Generator CSS object-fit Playground CSS Logical Properties Guide Web Font Loader Generator CSS Animation Keyframes Generator CSS Specificity Calculator CSS Transform Playground Tailwind CSS Class Sorter CSS Variables Generator SVG Path Data Editor CSS Backdrop Filter Generator Responsive Font Size Calculator CSS Container Queries Reference CSS Mask Image Generator CSS Scroll Animation Generator CSS Color Function Generator CSS Easing Function Generator CSS Print Stylesheet Generator CSS Cursor Reference CSS Houdini Paint Worklet Generator CSS Overflow Reference CSS position: sticky Guide CSS Isolation Property Guide CSS Specificity Calculator CSS Container Queries Reference CSS @layer Reference & Generator CSS Subgrid Reference & Generator CSS View Transitions API Reference CSS Nesting Reference & Generator CSS :has() Selector Reference CSS Writing Mode Reference CSS @scope Reference & Generator CSS @starting-style Reference CSS Triangle Generator CSS Loader Generator CSS Wave Divider Generator CSS Checkbox & Toggle Generator SVG Blob Generator SCSS to CSS Compiler LESS to CSS Compiler CSS to SCSS Converter SCSS Beautifier Color Wheel Picker CSS Grid Generator CSS Flexbox Generator CSS Button Generator CSS Glassmorphism Generator CSS Background Pattern Generator Aspect Ratio Calculator Color Name Finder CSS Beautifier CSS Content Visibility CSS Diff CSS To Tailwind CSS Units Converter Gradient Generator Grid Generator SVG To CSS Tailwind To CSS Tint Shade Generator
{ } JSON Tools 40
JSON Formatter JSON ↔ CSV Converter YAML ↔ JSON Converter JSON Schema Validator JSON Path Evaluator JSON to TypeScript Type Generator JSON to Go Struct Generator JSON Viewer & Tree Explorer JSON Diff Tool JSON to YAML Converter JSON to XML Converter JSON to GraphQL Schema Generator JSON to Rust Struct Generator JSON to Python Dataclass Generator JSON to SQL INSERT Generator JS Object to JSON Converter JSON to CSV Converter JSON Schema Generator YAML to JSON Converter JSON Merge Tool JSON Formatter JSON to Java POJO JSON to C# Class JSON to Kotlin Data Class JSON to Swift Struct JSON to Dart Class JSON to PHP Class JSON to Pydantic Model JSON to JSON Schema JS Object To JSON JSON Minifier JSON To Elixir JSON To Env JSON To Haskell JSON To Objc JSON To R JSON To Ruby JSON To Scala JSON To TOML Random JSON Generator
JS JavaScript Tools 45
Regex Tester JavaScript Minifier TypeScript Type Playground JavaScript Object Explorer JavaScript KeyCode Finder Regex Pattern Library JavaScript Array Method Explorer JavaScript Event KeyCodes Reference Regex Cheat Sheet JavaScript Promise Visualizer TypeScript Type Generator JavaScript Date Formatter Regex Tester JavaScript String Methods Reference JavaScript Object Explorer TypeScript Utility Types Reference JavaScript Fetch API Builder JavaScript Console Method Reference JavaScript Map & Set Methods Reference JavaScript Error Reference JavaScript Destructuring Cheat Sheet JavaScript WeakRef & FinalizationRegistry Guide JavaScript Array Methods Cheat Sheet JavaScript Object Methods Reference JavaScript RegExp Methods & Flags Reference JavaScript Number Methods Reference JavaScript TypedArray Reference JavaScript Intl API Reference JavaScript Proxy & Reflect Reference Web Storage API Explorer JavaScript Iterator & Generator Reference JavaScript Promise Methods Reference JavaScript structuredClone() Reference JavaScript Error Reference JS AbortController Reference Astro Config Generator Biome Config Generator Bun Config Generator Curl To Code Deno Config Generator Javascript Beautifier JS Minifier JSON To Zod Package JSON Diff Vitest Config Generator
</> HTML & Markdown Tools 31
Markdown Preview Editor HTML Entity Encoder / Decoder HTML Minifier HTML to Markdown Converter Markdown to HTML Converter Table to Markdown Converter Markdown Table Generator HTML Table Generator Markdown Link Checker HTML to JSX Converter HTML Meta Tag Reference HTML Email Template Builder HTML to Markdown Converter GitHub Markdown Preview HTML Entities Cheat Sheet HTML Semantic Elements Reference HTML Dialog Element Guide HTML Picture Element Reference HTML Input Types Reference HTML Meta Tags Reference HTML Popover API Reference HTML Details & Summary Reference CSV To HTML Table HTML Beautifier HTML To JSX HTML To PDF HTMX Reference Markdown To PDF Text To HTML Word To HTML XML To HTML Table
#! Encoding & Crypto Tools 52
Hash Generator URL Encoder / Decoder Base64 Encoder / Decoder JWT Decoder Password Generator Number Base Converter Base64 Image Encoder / Decoder Encoding Detector & Converter Byte & Bit Unit Converter Text to Binary Converter MIME Type Lookup String Escape / Unescape JWT Generator / Builder Hash Generator URL Parser & Analyzer JWT Decoder ROT13 Encoder / Decoder Hex Encoder / Decoder ASCII to Hex Converter Base58 Encoder / Decoder Punycode Converter UTF-8 Encoder / Decoder CRC32 Calculator File Checksum Calculator Gzip Compress / Decompress Number Base Converter AES Encrypt Decrypt Base64 To PNG Bcrypt Generator Binary To Decimal Binary To Text Bitwise Calculator Decimal To Binary Decimal To Hex Hex To Decimal Hex To Text HMAC Generator Javascript Escape JSON Escape Morse To Text Octal Converter Password Strength Checker PNG To Base64 SHA-256 Generator SHA-512 Generator Shell Escape SQL Escape Text To Hex Text To Morse Text To Nato TOTP Generator XML Escape
Aa Text & String Tools 28
Lorem Ipsum Generator Diff Checker Text Case Converter Placeholder Image Generator String & Text Analyzer QR Code Generator Text Diff Merger Emoji Picker & Unicode Lookup HTML Email Signature Generator ASCII Art Text Generator Random Number Generator Random String Generator Lorem Ipsum Paragraphs Fake Data Generator ASCII Table Reference Emoji Search & Copy Character Counter Morse Code Translator Remove Duplicate Lines Remove Empty Lines Slug Generator Sort Lines String Reverse Text Repeater Text Reverser Text To Binary Word Counter Word Frequency Counter
⇄ Data Converter Tools 26
SQL Formatter YAML ↔ JSON Converter XML Formatter & Beautifier XML to JSON Converter TOML Editor & Validator SQL to NoSQL Converter JSON to YAML Converter YAML Validator & Formatter YAML to JSON Converter SQL to JSON Converter GraphQL Query Builder YAML Editor & Validator CSV To Markdown Table CSV To SQL CSV To YAML Env To JSON SQL To MongoDB TOML To JSON TSV To CSV XML Diff XML To CSV XML To YAML YAML Diff YAML To Env YAML To TOML YAML To XML
⚙ Code & Config Generators 36
UUID Generator Git Command Generator Docker Compose Generator .env File Validator Package.json Generator tsconfig.json Generator ESLint Config Generator .gitignore Generator Dockerfile Generator Privacy Policy Generator Terms of Service Generator Cookie Consent Banner Generator Package.json Generator Environment Variable Generator Webpack Config Generator Prettier Config Generator Vite Config Generator EditorConfig Generator ESLint Rule Tester NPM Scripts Runner Visualizer Git Branch Name Generator API Key Generator Color Shade Generator CUID2 Generator Mock API Response Generator NanoID Generator Random Color Palette Random CSV Generator Random Date Generator Random IP Generator Sample JWT Generator Sitemap Generator Snowflake Id Generator Timestamp Generator ULID Generator UUID Batch Generator
▸_ DevOps & Networking Tools 33
Epoch Converter Crontab Generator Crontab Generator Epoch & Unix Timestamp Converter Unix Chmod Calculator IP Subnet Calculator HTTP Header Parser CORS Header Generator .htaccess Generator DNS Lookup Nginx Config Generator HTTP Status Code Reference CSP Generator Webhook Tester Chmod Calculator GitHub Actions Workflow Generator CSP Generator API Response Mocker SSH Config Generator HTTP Request Builder DNS Record Lookup & Generator cURL to JavaScript cURL to Python cURL to Go cURL to PHP cURL to Rust Fetch to cURL Converter HTTP Methods Reference Timezone Converter Unix Timestamp Converter Percentage Calculator Git Command Builder htpasswd Generator
· Image Tools 16
Favicon Generator Image Compressor PNG to JPG Converter JPG to PNG Converter Image to WebP Converter WebP to PNG Converter SVG to PNG Converter Image EXIF Viewer Image to ASCII Art Base64 To Image Image Cropper Image Diff Image EXIF Viewer Image Resizer Image To ASCII Art Image To Base64
· Network Tools 5
CORS Header Generator URL Parser & Analyzer CIDR Calculator HTTP Header Analyzer IP Address Converter
◎ SEO & Web Tools 8
Open Graph & Meta Tag Generator robots.txt Generator Open Graph Preview Tool Favicon Generator Open Graph Meta Tag Generator Web App Manifest Generator Open Graph Preview Twitter Card Generator
· AI & LLM Tools 16
LLM Token Counter LLM Cost Calculator Prompt Diff Viewer Context Window Visualizer AI Model Comparison System Prompt Builder Function Calling Schema Builder SSE Stream Parser .cursorrules Generator CLAUDE.md Generator MCP Config Generator AI Coding Agent Config Generator AI Response Formatter Prompt Diff Tool Structured Output Validator Vibe Coding Prompt Builder
🔒 Security & Privacy Tools 13
.env Secret Scanner API Key Detector JWT Vulnerability Analyzer Secrets Redactor SSL Certificate Decoder Certificate Chain Validator CSR Generator SSH Key Generator PGP Key Generator Password Entropy Visualizer OAuth Token Debugger RSA Key Generator Test Credit Card Numbers
· Validators & Parsers 12
IBAN Validator Email Validator Credit Card Validator Phone Number Parser User Agent Parser Semver Range Tester Crontab Expression Tester CSV Viewer IP Address Lookup PDF Metadata Viewer PDF To Text Regex Generator
· Code Formatters 22
Java Formatter Python Formatter C/C++ Formatter Ruby Formatter PHP Formatter Rust Formatter Go Formatter Kotlin Formatter TOML Formatter .env Formatter Nginx Config Formatter Apache Config Formatter Elm Formatter Haskell Formatter Lua Formatter Perl Formatter SQL Beautifier SQL Diff SQL Minifier Svelte Formatter Vue Formatter XML Minifier
· Code Transforms 10
TypeScript to Zod JSON Schema to TypeScript JSON Schema to Protobuf GraphQL to TypeScript CSS to JS Objects SVG to JSX SVG to React Native API Response Diff Color Name Lookup CORS Header Builder
[]= Docker & DevOps Tools 8
Docker Run to Compose Docker Compose Validator Docker Compose Env Substitutor GitHub Actions Validator GitHub Actions Expression Evaluator Kubernetes YAML Validator Terraform HCL Formatter Makefile Generator
· Utility & Math Tools 17
Number Base Converter Aspect Ratio Calculator Unit Converter Aspect Ratio Calculator DPI/PPI Calculator Number Base Converter Roman Numeral Converter IPv4/IPv6 Converter Text Cleaner Email Extractor WiFi QR Code Generator TOTP Generator Barcode Generator Phone Number Extractor MAC Address Generator Epoch Date Converter QR Code Reader
· Design & Typography Tools 4
Color Wheel Picker Font Pair Finder Bionic Reading Converter SVG Pattern Generator
· SEO & Structured Data Tools 1
JSON-LD Playground
· Crypto & Blockchain Tools 1
BIP39 Mnemonic Generator

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