CookSubs
Free ingredient substitutes with exact ratios, plus measurement and oven temperature conversion -- real answers, not vague swaps.
Most recipe sites bury a substitution inside a wall of text, or list a few options without ever giving you a real ratio to work from. Every page here leads with the exact amount -- scale it to how much you need, and get back to cooking.
There are two kinds of pages: substitutes, for when you're out of an ingredient entirely, and converters, for when a recipe gives you cups and your scale wants grams (or the other way around).
Ingredient Substitutes
Grouped by what they're used for, so it's faster to find the one you actually need.
Flours & Thickeners
Fats & Oils
Flavor & Other
Ingredient Converters
Cups to grams and back, using the standard baking weight for each ingredient.
Oven Temperature
Frequently Asked Questions
How accurate are the substitution ratios?
They're the standard, widely-published ratios found in professional baking references, not original research or guesswork -- the same substitutions a baking reference book would give you, just without digging through one.
Will a substitute always work exactly like the original?
Close, but not identical -- each substitute page notes what actually changes (texture, flavor, rise) and which recipe types it works best in, rather than pretending every swap is a perfect 1:1 replacement.
Do I need an account or app to use this?
No -- every page works without signing up, installing anything, or giving up any personal information. Look up the ratio, use it, done.