Simple tools that do one thing well.

A collection of focused, no-nonsense utilities for everyday tasks.

Catch grammar errors without changing your style. Paste text, see a difference. Supports most languages.

Practice coding interviews with an AI coach. Work through problems step-by-step using the UMPIRE framework.

Play chess against an AI engine with real-time strategic commentary and post-game analysis.

Snap a photo of a book page or handwritten notes and get clean, structured Markdown back.