Coffee tools, zero fluff
Brew it
right.
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Five free tools to help you brew better coffee at home.
5 tools below
Brewax Brew Ratio
Calculate coffee-to-water ratios for any brewing method. Espresso, pour over, French press, and more.
→Brewax Unit Converter
Convert between grams, ounces, tablespoons, teaspoons, and cups instantly — two-way, all fields live.
→Brewax Temperature Guide
Ideal brewing temperatures for every method, in °C and °F. Because temperature changes everything.
→Brewax Extraction Timer
Time your extraction with method-specific targets. Visual feedback: too fast, optimal, or too slow.
→Brewax Caffeine Calculator
Estimate your total caffeine intake by cup count, brewing method, and cup size. Includes FDA daily reference.
→Why Brewax?
✓ Free forever
✓ No account required
✓ No ads
✓ Works offline after first load
✓ Mobile-first design
✓ Instant calculations