Use case
Validate ideas with community demand signals
Surveys tell you what people think they want. Public threads show what they actually complain about, compare, and pay for. Use Trending Problems to spot rising themes, then Search to test your specific niche - before you write code.
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How it works
- Step 1
Browse Trending Problems (free)
See rising pain themes across communities - no account required. Useful when you do not yet know which keywords to search.
- Step 2
Run targeted searches
Once you have a wedge, search how people describe the problem on Reddit, HN, Stack Overflow, and GitHub in one pass.
- Step 3
Triangulate with calls
Community evidence complements interviews - it does not replace them. Use threads for language; use calls for depth.
How Needle compares
Where each approach fits, and where it falls short.
| Approach | Best for | Buying-intent signal | Free option |
|---|---|---|---|
| Surveys only | Stated preferences | N/A | Cheap |
| SEO keyword tools | Search demand | Indirect | Limited |
| Needle | Live conversation demand | Direct | Trending Problems |
Frequently asked questions
Setup, limits, and every platform are covered in the docs.
When is community validation enough?
Trending Problems vs Search?
Pre-PMF founders?
By platform
Jump to the best guide, landing page, or platform doc for this use case.
- RedditHub: Trending Problems
- Hacker NewsHub: Trending Problems
- Stack OverflowPlatform landing: Stack Overflow
- GitHubPlatform landing: GitHub
- YouTubePlatform doc: YouTube
- BlueskyPlatform landing: Bluesky
- LobstersPlatform doc: Lobsters
- MastodonPlatform doc: Mastodon
- ForumsPlatform doc: Forums
- TumblrPlatform doc: Tumblr
- XPlatform doc: X
Find the conversations worth replying to
Needle searches public communities for buyer intent, ranks every thread, and tells you which ones to answer first.
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