A sharper toolbox for
everyday work.

Pretty-print, minify and validate JSON with line-level error reporting.

Decode a JSON Web Token's header and payload and inspect its claims instantly.

Convert text to and from Base64, with full UTF-8 support for unicode input.

Generate MD5, SHA-1, and SHA-256 hashes of any text instantly, all in your browser.

Percent-encode or decode text and full URLs, with separate component and full-URL modes.

Test regular expressions against sample text with live match highlighting and capture groups.

Decode cron expressions into plain English and preview their next scheduled run times.

Generate cryptographically random v4 UUIDs one at a time or in bulk, with one-click copy.

Generate strong random passwords with configurable length and character sets, scored for strength.

Turn any text or URL into a downloadable QR code — adjustable size, error correction, PNG and SVG export.

Calculate tip amount, total bill, and per-person split with quick 15/18/20% presets or a custom rate.

Calculate your monthly mortgage payment, total interest, and a full amortization schedule from principal, rate, and term.

Calculate sales tax and total price from a pre-tax amount, or work backward from a tax-included total to find the original price.

Estimate monthly and annual AdSense earnings from pageviews, RPM, and ad density — with niche-based RPM presets.