Free & Interactive

Every Coffee Tool You Need

No login, no ads, no nonsense — just precise, interactive tools built for home baristas.

Brew Ratio Calculator

Exact water volumes for any coffee dose across 6 brew methods.

Convert grind settings across 8 popular grinders.

Estimate caffeine intake by method and track your daily limit.

See how much brewing at home saves vs buying at a café.

Build your tasting profile from floral to earthy.

Diagnose bitter, sour, or weak coffee and fix your brew.