protocolbuffers/protobuf

Maintenance

Active

Human commits, 30 days

372

Human commits, 90 days

818

Human commits, 365 days

2.7k

Bot share of commits, 365 days

0%

Last commit

Oct 14, 2026 (23 hours ago)

Last human commit

Oct 14, 2026 (23 hours ago)

Authors, 90 days

51

Last release

Sep 17, 2026 (27 days ago)

Median PR merge time

19 hours

Responsiveness: of 30 recent issues, 73% got a maintainer reply. Median first response: 4 days.

• Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.
• Authors in the last 90 days are counted from the sampled commits only.

Sources: Commits, Releases, Merged pull requests, Issues

People

Owner

Organization

Commits sampled

213 since Oct 14, 2025

Authors for half of commits

5

Authors for 80% of commits

13

Contributors

368

Top committers

• ClaytonKnittel: 14% of commits
• karenwuz: 12% of commits
• mkruskal-google: 12% of commits
• sbenzaquen: 11% of commits
• runzw: 9% of commits

• Shares come from the newest sampled commits, since the commit sample is capped.
• Commits pushed by accounts that sync other people's work, such as translation platforms, are left out of the shares.

Sources: Commits, Contributors

Stars

Organic, confidence high

Bursts

• Feb 26, 2015 to Feb 27, 2015: about 81 more stars than usual, peak 56 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jul 29, 2016 to Aug 3, 2016: about 323 more stars than usual, peak 175 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
• Jul 17, 2020 to Jul 17, 2020: about 71 more stars than usual, peak 86 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jan 12, 2021 to Jan 14, 2021: about 207 more stars than usual, peak 88 in one day, a flat block of stars. Outside explanation: a jump in issues and pull requests.
• Mar 31, 2021 to Apr 3, 2021: about 199 more stars than usual, peak 88 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jun 10, 2021 to Jun 11, 2021: about 75 more stars than usual, peak 77 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jul 2, 2021 to Jul 2, 2021: about 70 more stars than usual, peak 87 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
• Jul 22, 2021 to Jul 28, 2021: about 340 more stars than usual, peak 87 in one day, a flat block of stars. No outside explanation found, so this burst is unexplained.
• Aug 12, 2021 to Aug 14, 2021: about 171 more stars than usual, peak 100 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Nov 23, 2021 to Nov 23, 2021: about 52 more stars than usual, peak 68 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jan 13, 2022 to Jan 14, 2022: about 73 more stars than usual, peak 62 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Feb 15, 2022 to Feb 16, 2022: about 53 more stars than usual, peak 52 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Apr 20, 2022 to Apr 23, 2022: about 152 more stars than usual, peak 78 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jan 5, 2023 to Jan 6, 2023: about 74 more stars than usual, peak 51 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Oct 11, 2023 to Oct 15, 2023: about 509 more stars than usual, peak 334 in one day, a shape we can't classify. No outside explanation found, so this burst is unexplained.
• May 29, 2024 to May 31, 2024: about 106 more stars than usual, peak 56 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Apr 8, 2025 to Apr 10, 2025: about 144 more stars than usual, peak 77 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jul 11, 2025 to Jul 14, 2025: about 500 more stars than usual, peak 385 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
• Oct 29, 2025 to Oct 30, 2025: about 82 more stars than usual, peak 63 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jan 6, 2026 to Jan 8, 2026: about 203 more stars than usual, peak 105 in one day, a flat block of stars. Outside explanation: a jump in issues and pull requests.
• Jan 28, 2026 to Jan 31, 2026: about 191 more stars than usual, peak 76 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Mar 21, 2026 to Mar 22, 2026: about 95 more stars than usual, peak 78 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jul 17, 2026 to Jul 18, 2026: about 62 more stars than usual, peak 53 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Sep 2, 2026 to Sep 3, 2026: about 102 more stars than usual, peak 91 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.

• 4 stars GitHub has since removed (tracked since Oct 14, 2026).

Anyone can buy stars for any repo; bursts alone don't prove the owner did.

• The star history looks organic.

Sources: How star history is analyzed

Risk

Flags

No risk flags.

License

Now

BSD-3-Clause (OSI-approved)

A year ago

BSD-3-Clause (OSI-approved)

Packages

No published packages found.

OpenSSF Scorecard: 4.8 out of 10 (via deps.dev).

Sources: GitHub: protocolbuffers/protobuf