ValidateIdea evaluator
Describe your idea and get a quick AI check: a score, a plain verdict and the niches it matches.
Free tools
Free tools for people who build
The founder calculators and the fit quiz run in your browser, with no account. Only the idea evaluator needs a free account.
Free to useYour ideas stay privateKeep your results with a free account
Pick a tool
One goal: build what people want
Each tool answers one question. Start anywhere.
Validate
Find your trackFounder fit quiz
Ten questions about your skills, time and budget, scored against niches anyone can open.
PlanFounder calculators
MRR, churn, LTV, CAC, runway, break-even and pricing, plus an MVP estimate and a launch-readiness score. Formulas shown.
Want to go further?
Members get the full Tools hub with more rows, keep a history of their runs, and read the product opportunities TrendGap finds in real complaints.
How it fits together
Start with a free check and keep what you learn. When you are ready, a free account takes it further.
01
Try a free tool
Pick the tool that answers your question and try it right here.
02
Keep what you learn
A free account keeps the ideas you check in your private vault.
03
Find a real gap
Browse scored opportunities found in real complaints.
04
Build and launch
Turn it into a project with a build pack and a launch kit.
FAQ
About the free tools
Missing a tool?
Tell us what you would like to check next. A person on the team reads every message.