Everyday developer utilities — most built right into TechToolsCenter.
Beautify, minify and validate JSON with clear error messages — built into TechToolsCenter.
Encode or decode Base64 text and files instantly in your browser.
Decode a JSON Web Token's header and payload to inspect its claims.
Generate MD5, SHA-1, SHA-256 and other hashes from text or files.
Generate v4 UUIDs individually or in bulk for test data and IDs.
Create styled, branded QR codes for URLs, Wi-Fi, vCard, UPI and more.
Scan a QR code with your camera or an uploaded image, right in the browser.
Compress JPG, PNG and WebP images locally, with no upload to a server.
Merge, split, compress, and convert PDFs — a full private, in-browser PDF workspace.
Clean, transform, count and de-duplicate text — a full text-utility workspace.
Convert between Unix timestamps and human-readable dates, across time zones.
Encode or decode URL components and query strings instantly.
Convert colors between HEX, RGB, HSL and more, with a live picker.
Design linear and radial CSS gradients and copy production-ready code.
Generate placeholder paragraphs, sentences or word lists for mockups.
Convert Markdown to HTML or HTML back to Markdown, instantly.
Convert CSV to JSON or JSON back to CSV, with quoted-field support.