xiaolai / type-review

What is type-review?

TYPE is a browser-based typing practice app that adapts to your skill level without requiring an account or sending your data anywhere. Built with TypeScript and SolidJS, it runs entirely in your browser using IndexedDB for persistence. The core innovation is its adaptive learning mode: you start with six letters and unlock more only as you master them, drilling your weakest keys automatically. A separate benchmark mode lets you test your speed on real prose, quotes, or your own uploaded text.

Why is it gaining traction?

The privacy story is compelling: zero telemetry, no third-party fonts loaded at runtime, and your typing history never leaves your device. For developers who care about that sort of thing, this stands apart from most online typing trainers. The per-key analytics with finger-speed breakdown gives you actual insight into where your problems are, not just a WPM number. The optional mechanical keyboard sounds (synthesized on-device with Web Audio) add a tactile satisfaction without external dependencies.

Who should use this?

Developers who type for a living and want to build real muscle memory rather than just chasing WPM scores. The adaptive curriculum is specifically useful for people with specific weak points, like awkward bigrams or same-finger sequences. It's also a solid choice for anyone who refuses to sign up for another service just to practice typing.

Verdict

The 74 stars and 1.0% credibility score reflect a small but committed project in its early stages. The code quality is serious -- comprehensive test coverage, strict TypeScript, and a well-documented architecture. If you want a typing trainer that respects your privacy, stays out of your way, and actually adapts to your weaknesses rather than just drilling random text, type.review is worth trying. Just don't expect a community or commercial support tier.