Can you find an email for every stargazer?

No. An email appears only when the developer published one, on their profile or in public commits. That is usually 30 to 50 percent of a repo’s stargazers; the rest are still named profiles with their email kept private.

Do you use GitHub noreply addresses?

No. Addresses ending in @users.noreply.github.com are private by design, so they are dropped rather than used for outreach.

Is this compliant with outreach laws?

WarmStars reads only public data and honors a do-not-contact list matched by email and GitHub login. You remain responsible for reaching out lawfully under the rules where your recipients are, such as CAN-SPAM, GDPR, and CASL.

Guide

How do you find a GitHub stargazer’s email?

Updated July 5, 2026 · WarmStars

Short answer

A GitHub stargazer’s email is available only when the developer chose to publish it, either on their public profile or in the author metadata of their public commits. You can read it from those public sources for one user by hand, or scan a whole repo’s stargazers at once. GitHub keeps most emails private by default, so not everyone will have one.

Public email comes from two places: the profile field (if the developer made it public) and public commit metadata.
Most are hidden: GitHub defaults to a private noreply address, so typically 30 to 50 percent of a repo’s stargazers have a reachable public email.
Doing it for one person is manual. For a whole repo, you scan the stargazer list and read the public sources for each one.

Where does GitHub expose a stargazer’s email?

There are two public places. The first is the email field on a developer’s GitHub profile, which is shown only if they chose to make it public. The second is the author line on their public commits, which can carry the address they committed with.

Both are things the developer already published themselves. Neither involves guessing an address or matching a person by display name alone.

Why are most stargazer emails hidden?

GitHub protects email by default. New accounts commit through a private @users.noreply.github.com address, and many developers never make their profile email public. So for any given repo, only a portion of the stargazers have a public email you can actually reach.

The rest are not a dead end: they are still real, named people with a company, role, and social profiles. Their email simply stays private, and you should leave it that way.

How do you find them at scale?

For a single developer, you can open their profile and recent public commits and read the address off by hand. That does not scale past a handful.

For a whole repo, you pull the full stargazer list and read the same public sources for each person. That is what WarmStars does: paste a public repo URL and it scans every stargazer into a named profile, with a public email for the ones who left one. It uses public data only and honors a do-not-contact list, so anyone can opt out.

30-50%

of a repo’s stargazers typically have a public email. Everyone else is still returned as a named profile with company, role, and socials.

Common questions

Can you find an email for every stargazer?: No. An email appears only when the developer published one, on their profile or in public commits. That is usually 30 to 50 percent of a repo’s stargazers; the rest are still named profiles with their email kept private.
Do you use GitHub noreply addresses?: No. Addresses ending in @users.noreply.github.com are private by design, so they are dropped rather than used for outreach.
Is this compliant with outreach laws?: WarmStars reads only public data and honors a do-not-contact list matched by email and GitHub login. You remain responsible for reaching out lawfully under the rules where your recipients are, such as CAN-SPAM, GDPR, and CASL.

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