Early signal
PDF to EPUB Academic Converter
◆ theme · file docs“Say, if I have an EPUB file and I want to edit its content”— reddit · source ↗
Too early to trendFind what builders are about to build.
The daily map of underserved builder problems — sourced from real conversations, scored by opportunity, refreshed every morning.
379
Opportunity cards
34545
Builder signals analyzed
156
Builder communities
FILE DOCS
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Early signal
Home Documents Organizer
“Looking for service / app to save house documentation / manuals”
Too early to trend
Early signal
Obsidian Moodboard Manager
“I'm looking for: Managing multiple images on a single file, just like a moodboard”
Too early to trend
Built different
Real signals, not vibes
Every gap is sourced from a real builder post, GitHub issue, or product review — never invented. Click any source chip to verify.
Transparent scoring
Our 5-signal model (Pain · Demand · Supply · Trigger · Pay) is open. See exactly why each gap ranked where it did.
Early, not late
Surface opportunities before mainstream coverage arrives. Build on the trend, not after.
How it works
Listen
We track 1,019 builder conversations a day across Reddit, Hacker News, GitHub, Product Hunt, Bluesky, and indie founder discords.
Score
Each gap is graded on 5 signals — pain, demand, supply, trigger, willingness to pay — and ranked by build likelihood.
Deliver
Fresh gaps daily in your inbox at 6am UTC. Full library, filters, and your saved gaps live on your dashboard.