Built by
We are Julia and Finn, two techies obsessed with sourdough and the builders of Sourdough Tracker. We built it for our own starters.
Sourdough Tracker is built and run in Germany. We don't just tinker with software, we are also building a Sensor Kit for every home so you can track your sourdough. It's fun, and it brings genuinely great bread to the breakfast table (and whenever else you fancy bread). Have fun, Julia & Finn.
Your starter, written down.
Hobbyists, micro-bakery owners, parents who taught their kids to bake - this is what Sourdough Tracker did for them.
"I have three starters of different ages. The journal made it obvious that the rye one peaks four hours faster than the wheat one. Now my bake timing is finally right."
"I share my main starter's journal with my mum without giving her access to the rest. She's three hundred kilometres away and we still bake together."
"Tried five 'baking journals' that wanted me to subscribe before they'd even let me add a starter. This one doesn't, and the EU hosting is the cherry on top."
Read next
Going deeper on what Sourdough Tracker is for
Hand-picked deep dives, definitions, and opinion pieces from the people who built this. No comparisons, no pricing - just the thinking behind the product.
Cold kitchen? How temperature silently slows your sourdough starter (and how to fix it)
Temperature is the #1 reason a starter looks dead. Here is what each degree does, and how to fix a cold kitchen.
What your sourdough starter smells like at every stage of a feed (and what each means)
The normal smell arc from fresh feed to hungry, hour by hour, so you can read your starter by nose.
Weekend baker: how to keep a sourdough starter alive when you only bake once a week
A low-effort weekly rhythm for once-a-week bakers: fridge dormancy plus a simple Friday wake-up.
What's really in bread: the '300 additives' myth, fact-checked
The additives scare, calmly fact-checked - and why bread you bake yourself has nothing to hide.
The biggest bakery trends for 2026: sourdough, texture and protein
Sourdough is the most-talked-about bakery trend going into 2026, alongside texture mash-ups and protein. What the data says - and what it means if you bake at home.
Is sourdough bread actually healthy?
Digestion, gut health, blood sugar and diabetes, white vs wholegrain, and the catch most people miss.
Sourdough vs yeast: what's the difference?
Commercial yeast vs sourdough, side by side: when to use which, and whether you can use both.
How to make bread without commercial yeast
No yeast in the cupboard? Sourdough is the real answer; baking-powder breads are the fast stand-in. How each works.
Is making your own sourdough worth it (and is it hard)?
Time, difficulty, cost and payoff - weighed honestly. Spoiler: easier than its reputation, and the hard part has a fix.
A short history of bread baking (and why sourdough is the original)
From ancient Egypt and Oetzi to German Brotkultur and the modern revival - the long story of sourdough.
How to name your sourdough starter (200+ ideas)
Why bakers name their starter, a naming formula, and 200+ sorted ideas.
Why Your Sourdough Starter Smells Like Acetone, Vinegar, or Gym Socks (And Whether to Panic)
Every sourdough starter smell decoded - from pleasantly tangy to genuinely alarming.
"I Think I Killed My Sourdough Starter" - What's Actually Happening and What to Do
Why your starter is almost certainly just hungry - and exactly how to fix it.
Bake around your starter, not the other way round
Why scheduling bakes against the recipe instead of your starter is the most common mistake.
Why your sourdough comes out dense or gummy (and how to fix each one)
Dense and gummy have opposite causes; here's how to tell which you have.
Why journaling sourdough beats memory + intuition
Why a journal is the single highest-leverage upgrade to your sourdough practice.
Stiff vs liquid sourdough starter: which one should you keep?
How hydration changes flavour, timing and how forgiving the starter is.
What Is Sourdough Starter Discard - And Should You Be Tracking It?
What discard is, why you have to do it, and what to do with it instead of throwing it out.
7 Signs Your Sourdough Starter Is Ready to Bake - Don't Miss #4
Seven reliable signs your starter is at peak - ranked by how much they actually matter.
What 'rise %' actually tells you about your starter
Rise % in plain language, plus what 100%, 200% and 'never doubles' each mean.
What Is Sourdough Starter Hooch? (It's Not What You Think)
Hooch explained: what it is, what it means, and exactly what to do with it.
Start your first sourdough today
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