Developer Tools
Free, fast, and AI-powered. No signup required.
JSON Formatter & Validator
Format, validate, and beautify JSON with AI-powered error explanations.
UUID Generator
Generate UUIDs (v4) instantly. Bulk generation, copy-to-clipboard.
Base64 Encode / Decode
Encode and decode Base64 strings instantly in your browser.
Regex Tester & AI Builder
Test regex patterns with live matching. Describe what you need in plain English and AI builds the regex.
Cron Expression Generator
Build and decode cron expressions visually. Describe your schedule in plain English and AI builds it.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly.
Color Palette Generator
Generate beautiful color palettes with harmony rules. Copy HEX, RGB, and HSL values.
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, or words. Classic lorem ipsum.
QR Code Generator
Generate QR codes from URLs, text, or data. Download as PNG or SVG.
Diff Checker
Compare two texts side-by-side and see the differences highlighted.
Password Generator
Generate strong, secure passwords instantly. Customize length, characters, and complexity.
Word Counter
Count words, characters, sentences, and paragraphs. Reading time estimates.
JWT Decoder
Decode and inspect JSON Web Tokens. View header, payload, and expiration status.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.
URL Encode / Decode
Encode and decode URLs and query strings instantly. Supports encodeURIComponent and encodeURI.
CSV to JSON Converter
Convert CSV to JSON and JSON to CSV. Supports custom delimiters, file upload, and download.
Markdown Preview
Write Markdown and see rendered HTML in real-time. Split, source, and preview modes.
YAML to JSON Converter
Convert YAML to JSON and JSON to YAML instantly. Bidirectional, no dependencies.
CSS Minifier & Beautifier
Minify CSS to reduce file size or beautify it for readability. Free online CSS formatter and compressor.
SQL Formatter & Beautifier
Format, beautify, and minify SQL queries online. Supports SELECT, JOIN, subqueries, and all major SQL dialects.
HTML Entity Encoder / Decoder
Encode and decode HTML entities. Convert special characters to their HTML entity equivalents.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more.
SQL Formatter & Beautifier
Format, beautify, and minify SQL queries online. Supports SELECT, INSERT, JOINs, subqueries.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly.