IndieSignal· Startup idea database
Real problems worth building, sourced from real complaints.
Developer Tools·Analytics·Productivity
What is IndieSignal?
IndieSignal is a startup idea database.
IndieSignal is a curated catalog of real problems people complain about online, researched into opportunities a solo developer can actually build.
Most idea lists are brainstormed. Every opportunity on IndieSignal starts with a real post on Reddit or Hacker News, where someone described a frustration nobody asked them about. Each one is scored for pain intensity, checked against existing competition, evaluated for whether one person could build a first version, and flagged for regulatory risk. AI speeds up the first pass, but a person reviews every idea before it's published, and most candidates never make it.
Key features
- Pain score (0-100), competition level and solo-buildability on every idea
- Full analysis: the real problem, a proposed solution, the differentiator, and named competitors
- Plain-English semantic search, which finds relevant problems even when the original complaint used different words
- Save ideas to revisit when you're ready to build
- New opportunities published every week
Use cases
- Indie hackers looking for their next side project
- Developers who want a validated starting point before writing code
- Freelancers who want to build their own product between client work
- Founders picking which MVP to test first
What makes it stand out
It doesn't ask anyone "would you pay for this?". It starts from unprompted complaints, which is a much more honest signal. No million-dollar promises, just real problems, researched and filtered by hand.
Free account: Try it free: indiesignal.app scores and summaries on every idea, plus one full analysis unlocked. PRO: $4.99/month or $29 lifetime.
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Comments
1Hey everyone! Oscar here, solo dev behind IndieSignal. My problem was never building, it was picking what to build. I'd spend weeks on an idea and then realize nobody needed it. So I wrote a small script for myself that collected Reddit and Hacker News posts where people complained about something specific. Those complaints turned out to be more useful than any idea list: real pain, what people already tried, and why it failed. That became IndieSignal. Every complaint is scored for pain, competition and whether one person could build it, and I review each one by hand before it's published. Most don't make the cut. Now there are 200 published opportunities, with new ones every week. The free account shows scores on every idea plus one full analysis. I'd love your feedback, especially on what's confusing. Thanks for checking it out!