YouTube niche finder
Type a topic and read the niche from the channels YouTube ranks for it, how big they are, how small ones are doing, and which uploads broke out. Free, no signup, on your own API key.
Small channels breaking out is the signal
A niche full of large channels proves demand and says little about your odds. The useful reading is the small end. When channels under 100K subscribers post uploads at three or more times their own typical views, YouTube is distributing the idea rather than the audience, and a newcomer with the right video gets the same treatment.
Typical views against subscribers adds the second half. A niche whose small channels hold typical views near their subscriber count has viewers who come back, while one that only produces one-off spikes is harder to build a channel on.
Read the breakouts as a content map
The breakout list ranks every recent upload in the niche by its multiple over its own channel's normal, so a small channel's 8x sits above a big channel's ordinary hit. Repeated subjects across different channels mark the topics the niche's audience wants now, and the formats and title shapes they share are the starting point for your first videos.
Run two or three phrasings of the same niche. YouTube's search ranks differently for "budget home lab" and "home lab servers", and the overlap between the two lists is the core of the niche.
Questions
Where do the channels come from?
From one YouTube search for your topic. The tool takes the channels behind the top video results, up to ten, and reads each one's last 50 uploads. Every number on the page is measured from those channels, none is estimated.
How do I tell if a niche is worth entering?
Look at the small channels. If channels under 100K subscribers hold solid typical views and post uploads at 3x their own normal, the niche rewards new entrants on the idea rather than the audience. A niche where only the large channels get views is harder to break into.
How much of my API quota does a search use?
About 120 units. The topic search costs 100 on its own, the channel reads cost about 2 each. A free key carries 10,000 units a day, so roughly 80 niche searches.
Does it estimate RPM or earnings?
No. Revenue per view depends on audience geography, ad demand and sponsorships, none of which the YouTube Data API exposes. The tool sticks to what the channels publicly show, views, cadence and size.
What does the app add?
Persistence. Bangermap keeps the channels you pick from a niche on a watchlist, re-scans them each time you open it, and expands the niche through the channels they feature, without spending search quota.
The other free tools
All six are listed on the free tools page, they share one key and one scoring engine, and the MCP server answers the same questions from Claude or Cursor without a browser.
Get the next tool
New free tools and each Bangermap release, by email.