GlintKit is a collection of free utilities — text tools, developer tools, converters, calculators, generators and design helpers — built on one principle: your data never leaves your device. Every tool runs as plain JavaScript in your own browser tab. There is no upload step, no processing server, no account wall in front of any tool.
Why in-browser matters
Most online tools quietly ship whatever you paste to a server. For a lorem ipsum generator that is harmless; for a JSON payload full of API tokens, a JWT from production, or a client's financial export, it is a real problem. Running everything locally is not a feature flag here — it is the architecture. You can verify it: open your browser's network tab while using any tool, and watch nothing leave.
What you'll find
The tool directory covers six categories, from a word counter and JSON formatter to a WCAG contrast checker and loan calculator. The blog publishes short, sourced articles on the ideas behind the tools — every factual claim cites a primary source like NIST, the WHO or an IETF RFC, listed at the end of each post.
Who builds this
GlintKit is built and maintained by Saad Rehman, a computer science student at the American University of Sharjah. Found a bug or want a tool added? Get in touch — or leave a review if something here saved you time.
Accounts and reviews
Accounts are optional and only add convenience features: syncing your favorite tools across devices and leaving reviews. Reviews are individually approved before publication to keep them genuine. The tools themselves never require sign-in.