Free tool

GitHub stargazer checker

Paste any public repo to see its star count and an estimate of how many stargazers you could reach by email. Free, no sign-in, aggregate only.

Aggregate only. This free check never shows individual developers.

What you get

The size of the signal, before you scan.

Every star on a repo is a developer who chose to pay attention. This checker shows how big that audience is and roughly how much of it is reachable by email, using the same 30 to 50 percent coverage we see across public repos. It is a fast gut-check on whether a repo is worth a full scan. The named people, their companies, and their public emails come when you sign in and scan.

Works on any public repo: yours or a competitor’s.
Aggregate counts only, so no developer is ever shown here without signing in.
The reachable figure is an estimate from typical coverage, not a scan of this repo.

Common questions

Is the GitHub stargazer checker free?
Yes. It is free and needs no sign-in. Paste any public repo and it returns the star count, forks, watchers, and an estimate of how many stargazers are reachable by email.
Does it show stargazer names or emails?
No. The free check is aggregate only and never shows individual developers. To see the named people and public emails behind the stars, sign in to WarmStars and scan the repo.
How accurate is the reachable estimate?
It applies typical coverage, the 30 to 50 percent of stargazers who publish a public email, to the star count. It is an estimate, not a scan. Scanning the repo returns the real named people.
get started

Meet the people behind your stars.

Free to start. Two scans a month, no credit card.

Start freeSee pricing