About UUToolkit

UUToolkit is a free collection of online utility tools designed to make your daily tasks easier. Whether you need to compress an image, merge PDFs, format JSON, or generate UUIDs — we've got you covered.

All tools run directly in your browser whenever possible. For operations that require server-side processing, your files are handled securely and never stored permanently. No signup, no ads, no tracking — just fast, reliable tools.

Privacy First

Your files never leave your browser. Client-side tools process everything locally, ensuring complete privacy.

Lightning Fast

Tools run in your browser with no server round-trips. Instant results with zero waiting.

100% Free

All tools are completely free to use. No hidden costs, no premium tiers, no signup required.

Works Everywhere

Fully responsive design that works on desktop, tablet, and mobile devices.

Developer Friendly

Built-in developer tools like JSON formatter, JWT decoder, and regex tester to speed up your workflow.

Open Source

Our code is open source on GitHub. Contribute, report issues, or suggest new tools.

Our Tools

We currently offer tools across four categories:

  • Image Tools — Compress, convert, resize, and remove backgrounds from images
  • PDF Tools — Merge, split, and compress PDF documents
  • Dev Tools — Format JSON, decode JWT tokens, test regular expressions
  • Text Tools — Convert Markdown to HTML, generate UUIDs

Contact & Feedback

Have a suggestion for a new tool? Found a bug? We'd love to hear from you!

Built with ♥ by the UUToolkit team.