IndieSignal turns real complaints from Reddit and Hacker News into researched startup opportunities you can actually build. Every opportunity links back to the real post it came from.
Built for people who ship alone.
“Averaging 5 cold calls to us per day.”
LIVE FROM THE CATALOG
From random complaint to researched opportunity.
We monitor public communities where people describe real problems, frustrations, and unmet needs.
We evaluate how painful the problem is, whether a solo developer could realistically build a first version, and whether regulatory risk makes it a poor fit.
We investigate existing solutions and competition, so you know what already exists before investing your time.
A human reviews every candidate before it reaches the catalog, fewer useful opportunities, not more noise.
THE FILTER
Most complaints are noise.
That's the point.
of 2,827 analyzed complaints make it to publication
Built for people who want to ship, not brainstorm.
Every opportunity starts with a complaint from a real person in a public community.
Understand the problem, the existing solutions, and the market before committing your time.
See whether an opportunity could realistically become a focused first version.
Every opportunity is checked by hand before it's published. Most candidates never make it.
Search in plain English to find relevant problems, even when the original complaint used different words.
Bookmark the problems worth revisiting when you're ready to build.
Found a problem worth building?
Read how this exact product was built, every real prompt, every real bug, every real fix.
Frequently asked questions
IndieSignal is built primarily for indie developers, solo founders, and technical builders who want to find problems worth solving before investing time in development.
A validated opportunity has passed the research process: it's sourced from a real complaint, evaluated for pain and solo-buildability, checked against existing competition, and reviewed by a person before publication. Validated doesn't mean guaranteed revenue or product-market fit.
From public posts on Reddit, Bluesky, Hacker News and GitHub where people describe real problems they're facing right now, not hypothetical brainstorming. Every idea links back to the post it came from, so you can read the original complaint yourself.
Each post is scored for pain intensity (0-100), whether a single developer could realistically build a first version, and any regulatory risk (finance, health, legal, etc), then checked against existing competition. AI speeds up the first pass; a person makes the final call.
No system is perfect, but every opportunity that reaches the public catalog has passed both the AI scoring and a human review before publishing, we'd rather show you fewer, better opportunities than flood you with noise.
New opportunities are researched and published every week, so the catalog keeps growing.
A free account shows the pain score, competition and summary on every idea, plus one idea unlocked in full. PRO unlocks every analysis: $4.99/month (cancel anytime from your account page) or $29 once for lifetime access.
ChatGPT invents ideas that sound plausible. Every IndieSignal idea starts from a real person describing a real problem, and you can read their original words and open the source post yourself before deciding to build anything.
Yes. Each idea shows a quote from the original complaint and a link to the public post it came from, so you can check the context and the replies yourself.
Your next build deserves better research.
Explore real problems, understand the market, and find opportunities worth investigating before you start building.