Developer Tools

Free, fast, and AI-powered. No signup required.

Format, validate, and beautify JSON with AI-powered error explanations.

Generate UUIDs (v4) instantly. Bulk generation, copy-to-clipboard.

Encode and decode Base64 strings instantly in your browser.

Test regex patterns with live matching. Describe what you need in plain English and AI builds the regex.

Build and decode cron expressions visually. Describe your schedule in plain English and AI builds it.

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly.

Generate beautiful color palettes with harmony rules. Copy HEX, RGB, and HSL values.

Generate placeholder text in paragraphs, sentences, or words. Classic lorem ipsum.

Generate QR codes from URLs, text, or data. Download as PNG or SVG.

Compare two texts side-by-side and see the differences highlighted.

Generate strong, secure passwords instantly. Customize length, characters, and complexity.

Count words, characters, sentences, and paragraphs. Reading time estimates.

Decode and inspect JSON Web Tokens. View header, payload, and expiration status.

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

Encode and decode URLs and query strings instantly. Supports encodeURIComponent and encodeURI.

Convert CSV to JSON and JSON to CSV. Supports custom delimiters, file upload, and download.