All Developer Tools (74)
Free, fast, and client-side. All tools run entirely in your browser — your data never leaves your device.
Data (5)
JSON Tools
→Format, validate, diff, and query JSON
[Data]YAML Tools - Convert & Format YAML/JSON
→Convert YAML to JSON format
[Data]CSV Tools - Convert & View CSV/JSON Data
→Convert CSV data to JSON format
[Data]XML Formatter / Validator
→Format and beautify XML documents
[Data]TOML to JSON Converter
→Convert between TOML and JSON
[Data]Encoding (11)
Base64 Encode / Decode
→Encode and decode Base64 strings
[Encoding]URL Encode / Decode
→Encode and decode URL strings
[Encoding]HTML Encode / Decode
→Encode and decode HTML entities
[Encoding]Unicode Escape / Unescape
→Escape and unescape Unicode sequences
[Encoding]Hex Encode / Decode
→Encode and decode hexadecimal strings
[Encoding]ROT13 Encoder / Decoder
→ROT13 letter rotation cipher
[Encoding]Punycode Converter
→Convert between IDN and Punycode
[Encoding]Morse Code Translator
→Translate between text and Morse code
[Encoding]Ascii85 / Base85 Encoder
→Encode and decode Ascii85 / Base85
[Encoding]String Escape / Unescape
→Escape strings for different languages
[Encoding]Base64 ↔ Image Converter
→Convert between Base64 and images
[Encoding]Text (10)
Regex Tester
→Test and debug regular expressions in real-time
[Text]Markdown Tools - Preview & Convert MD/HTML
→Live Markdown editor with real-time preview
[Text]Slug Generator
→Convert text to URL-friendly slugs
[Text]Text Diff Checker
→Compare two texts and highlight differences
[Text]Line Tools - Sort, Deduplicate & Number Lines
→Sort text lines in various orders
[Text]Text Analyzer - Word Count & Statistics
→Count words, characters, and reading time
[Text]Text Transform - Case, Reverse & Whitespace
→Convert text between different cases
[Text]Find & Replace
→Find and replace text with regex support
[Text]Text to Binary
→Convert between text and binary
[Text]NATO Phonetic Alphabet
→Convert text to NATO phonetic alphabet
[Text]Security (7)
Password Tools — Generate & Check Strength
→Generate & check password strength
[Security]JWT Tools — Decode, Encode, Verify & Inspect
→Decode, encode, verify & inspect JWTs
[Security]Hash Tools — Hash & HMAC Generator
→Generate hashes and HMAC signatures
[Security]Key Pair Generator — RSA & SSH Keys
→Generate RSA & SSH key pairs
[Security]Bcrypt Hash Generator
→Generate and verify bcrypt hashes
[Security]AES Encrypt / Decrypt
→AES-256 encryption and decryption
[Security]CSP Header Generator
→Generate CSP headers visually
[Security]Generator (12)
ID Generator — UUID, NanoID & CUID
→Generate UUID, NanoID & CUID identifiers
[Generator]Random String Generator
→Generate random strings and tokens
[Generator]Lorem Ipsum Generator
→Generate placeholder text for designs
[Generator]QR Code Generator / Decoder
→Generate and decode QR codes
[Generator]TOTP / 2FA Generator
→Generate TOTP 2FA codes
[Generator]Favicon Generator
→Generate favicons from text or emoji
[Generator]Mock Data Generator
→Generate realistic fake data
[Generator].gitignore Generator
→Generate .gitignore from templates
[Generator]Meta Tag Generator
→Generate SEO and social meta tags
[Generator]License Generator
→Generate open source licenses
[Generator]Chmod Calculator
→Calculate Unix file permissions
[Generator]Database Command Generator
→Generate DB commands & connection strings
[Generator]Code (13)
HTML Formatter
→Format and beautify HTML code
[Code]SQL Formatter
→Format and beautify SQL queries
[Code]CSS Formatter
→Format and beautify CSS code
[Code]Color Converter
→Convert colors between HEX, RGB, HSL formats
[Code]JavaScript Formatter
→Format and beautify JavaScript code
[Code]SVG Preview & Optimizer
→Preview and optimize SVG code
[Code]CSS Unit Converter
→Convert between CSS units
[Code]CSS Generator - Gradients & Box Shadows
→Create CSS gradients visually
[Code]Regex Quick Reference
→Regex syntax cheatsheet
[Code]JSON to CSS Variables
→Convert JSON to CSS custom properties
[Code]TypeScript Type Helper
→TypeScript utility type reference
[Code]Code to Image
→Create code snippet screenshots
[Code]Tailwind ↔ CSS Converter
→Convert Tailwind classes to CSS
[Code]Date & Time (6)
Timestamp Converter
→Convert Unix timestamps to dates and vice versa
[Date & Time]Cron Expression Parser
→Parse and generate cron expressions
[Date & Time]Time Zone Converter
→Convert times across global time zones
[Date & Time]Date Calculator - Diff, Age & Duration
→Calculate date differences
[Date & Time]ISO 8601 Date Formatter
→Format dates in multiple standards
[Date & Time]Calendar / Week Number
→Calendar with ISO week numbers
[Date & Time]