Who is already building it
Real projects with stars, downloads, activity and discussion links. Every claim cites something we collected, with a date. One click to verify.
246 ideas checked · nine sources, queried live
Is someone already
building your idea?
Type it in plain words. In about fifteen seconds you get who is already building it, what people are stuck on, and where the gap is — with a link behind every claim.
Your text creates a page at its own address so you can return to it or share it. Pages from visitors are unlisted: kept out of the site index, the sitemap and search engines. Do not paste anything you would not want a person with the link to read.
Or try one of these
What comes back
A real report, not a mock-up
This is an actual excerpt from a database backup service — 149 signals collected in one run.
There is a real backup-management market, but it is already crowded with active tools; a differentiated service needs to focus on restore verification, multi-database handling, and easier restore workflows.
Who is already building this From data
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databasus/databasus is a PostgreSQL backup tool with Point-In-Time-Recovery and restore verification; it has 7,831 stars and was last pushed on 2026-07-26, so it is still maintained.
- github databasus/databasus 2025-06-05
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spatie/laravel-backup is a package to backup a Laravel app; it has 6,016 stars and was last pushed on 2026-07-28, so it is still maintained.
- github spatie/laravel-backup 2015-02-17
Where the opening is Model estimate
Sections with nothing behind them say so, instead of borrowing the authority of the ones that do.
Sources
Nine places, checked the moment you ask
Each keeps its colour throughout the site, so you can see at a glance what a claim rests on. If one finds nothing, the report says so.
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Hacker News
Discussion, complaints, and — asked once per year — a real trend line.
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GitHub
Has someone open-sourced this already, and is it still alive?
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GitHub Issues
Complaints in users’ own words, ranked by how many others reacted.
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Buying signals
People writing “I’d pay for” or “looking for a tool that”.
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Community forums
Eight Discourse communities where people describe the problem itself.
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Stack Exchange
People stuck on the underlying problem. Silent on non-technical work.
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npm · PyPI · Docker
Download counts turn “there are alternatives” into usage figures.
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Web search
Products, pricing pages and write-ups the others miss.
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Dev.to
Build logs and tutorials that name tools nobody else indexes.
The whole point
Two kinds of sentence, never mixed
Most tools print a sourced fact and a confident guess in the same typeface. That is how you end up acting on a number nobody measured.
Where it is only a guess
Market size, risks and next steps have no source behind them, so they say so. Roughly half a report is estimate — showing that honestly is the product.
Already checked
246 reports, free to read
No account and no limit on reading. Only new runs are metered.
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a knowledge base for construction contractors
There is a real knowledge-management need in construction, but the signals mostly point to generic knowledge bases and contractor websites, not a contractor-focused product gap.
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a knowledge base for logistics companies
There is demand for logistics knowledge bases, but the market is already crowded with generic KB/RAG tools and a few logistics-specific clones.
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a knowledge base for property managers
There is clear demand, but the live competitor set is tiny and mostly stale
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a knowledge base for nonprofits
There are a few nonprofit knowledge-base tools, but the search found no real user pain or unmet buying demand yet.
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a knowledge base for fitness studios
There is evidence for a fitness-studio knowledge base, but the market signal is thin and mostly points to existing gym help centers, not a clear unmet product gap.
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a knowledge base for restaurants
There is demand for restaurant knowledge systems, but the market is already crowded with restaurant bots, RAG menu tools, and recommendation systems; a generic knowledge base is not a clean wedge.
Before you try it
What this is bad at
The sources are strongest for software and technical businesses. Ask about a flower shop or a gym in a particular city and it will find very little — and tell you so rather than inventing a market size.
It also cannot tell you whether you should build something. It measures the outside world, not your fit for it.