donnemartin/system-design-primer

Maintenance

Steady

Human commits, 30 days

0

Human commits, 90 days

0

Human commits, 365 days

10

Bot share of commits, 365 days

0%

Last commit

Mar 20, 2026 (6 months ago)

Last human commit

Mar 20, 2026 (6 months ago)

Authors, 90 days

0

Last release

none found

Median PR merge time

25 days

Responsiveness: of 30 recent issues, 0% got a maintainer reply. Median first response: n/a.

Sources: Commits, Releases, Merged pull requests, Issues

People

Owner

Personal account

Commits sampled

10 since Oct 14, 2025

Authors for half of commits

5

Authors for 80% of commits

8

Contributors

121

Top committers

• danielalanbates: 10% of commits
• freemanzMrojo: 10% of commits
• ibeckermayer: 10% of commits
• kimtth: 10% of commits
• pranjit-medhi: 10% of commits

Sources: Commits, Contributors

Stars

Organic, confidence high

Bursts

• Sep 5, 2017 to Sep 5, 2017: about 54 more stars than usual, peak 68 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Sep 14, 2017 to Sep 15, 2017: about 64 more stars than usual, peak 66 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jan 31, 2018 to Feb 1, 2018: about 115 more stars than usual, peak 88 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Jul 9, 2018 to Aug 9, 2018: about 11.4k more stars than usual, peak 3.3k in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in issues and pull requests.
• Jan 29, 2019 to Feb 1, 2019: about 345 more stars than usual, peak 191 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Feb 11, 2019 to Feb 14, 2019: about 193 more stars than usual, peak 134 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Mar 3, 2019 to Mar 6, 2019: about 346 more stars than usual, peak 238 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Jun 16, 2019 to Jun 28, 2019: about 2.7k more stars than usual, peak 1k in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
• Aug 19, 2019 to Aug 21, 2019: about 395 more stars than usual, peak 333 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Dec 24, 2019 to Dec 30, 2019: about 467 more stars than usual, peak 162 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Feb 17, 2020 to Feb 19, 2020: about 306 more stars than usual, peak 255 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Apr 1, 2020 to Apr 21, 2020: about 3.6k more stars than usual, peak 633 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• May 25, 2020 to May 27, 2020: about 593 more stars than usual, peak 456 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Jul 27, 2020 to Jul 28, 2020: about 213 more stars than usual, peak 182 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Sep 2, 2020 to Sep 3, 2020: about 125 more stars than usual, peak 153 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Oct 13, 2020 to Oct 13, 2020: about 95 more stars than usual, peak 162 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Oct 29, 2020 to Oct 30, 2020: about 215 more stars than usual, peak 188 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Nov 9, 2020 to Nov 12, 2020: about 654 more stars than usual, peak 380 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Nov 20, 2020 to Nov 21, 2020: about 153 more stars than usual, peak 159 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Dec 10, 2020 to Dec 10, 2020: about 139 more stars than usual, peak 203 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Dec 14, 2020 to Dec 21, 2020: about 813 more stars than usual, peak 262 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
• Jan 6, 2021 to Jan 7, 2021: about 354 more stars than usual, peak 340 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Apr 18, 2021 to Apr 19, 2021: about 134 more stars than usual, peak 191 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Apr 24, 2021 to Apr 27, 2021: about 787 more stars than usual, peak 373 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• May 7, 2021 to May 12, 2021: about 914 more stars than usual, peak 383 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Sep 5, 2021 to Sep 7, 2021: about 332 more stars than usual, peak 217 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Nov 2, 2021 to Nov 4, 2021: about 474 more stars than usual, peak 317 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
• Nov 17, 2021 to Nov 19, 2021: about 351 more stars than usual, peak 298 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
• Apr 1, 2022 to Apr 7, 2022: about 1.2k more stars than usual, peak 430 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Jul 1, 2022 to Jul 7, 2022: about 923 more stars than usual, peak 296 in one day, a flat block of stars. Outside explanation: a jump in issues and pull requests.
• Jan 7, 2023 to Jan 9, 2023: about 420 more stars than usual, peak 242 in one day, a flat block of stars. Outside explanation: a jump in issues and pull requests.
• Mar 2, 2023 to Mar 2, 2023: about 107 more stars than usual, peak 195 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Jul 2, 2023 to Jul 7, 2023: about 413 more stars than usual, peak 168 in one day, a shape we can't classify. We couldn't check for an outside explanation.
• Sep 23, 2023 to Sep 27, 2023: about 490 more stars than usual, peak 238 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Oct 25, 2023 to Nov 3, 2023: about 1.5k more stars than usual, peak 566 in one day, a shape we can't classify. Outside explanation: a Hacker News post.
• Dec 31, 2023 to Jan 10, 2024: about 2.7k more stars than usual, peak 971 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Feb 12, 2024 to Feb 14, 2024: about 222 more stars than usual, peak 260 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Apr 1, 2024 to Apr 9, 2024: about 841 more stars than usual, peak 267 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Apr 14, 2024 to Apr 18, 2024: about 952 more stars than usual, peak 461 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Apr 23, 2024 to May 3, 2024: about 1.2k more stars than usual, peak 325 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
• Jun 23, 2024 to Jun 28, 2024: about 573 more stars than usual, peak 300 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Sep 16, 2024 to Sep 17, 2024: about 185 more stars than usual, peak 213 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Nov 12, 2024 to Nov 22, 2024: about 1.3k more stars than usual, peak 310 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
• Dec 20, 2024 to Dec 30, 2024: about 2.9k more stars than usual, peak 927 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
• Mar 16, 2025 to Mar 20, 2025: about 1k more stars than usual, peak 442 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• May 4, 2025 to May 6, 2025: about 323 more stars than usual, peak 240 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• May 19, 2025 to May 25, 2025: about 768 more stars than usual, peak 310 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• May 31, 2025 to Jun 11, 2025: about 3.1k more stars than usual, peak 728 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
• Jun 24, 2025 to Jun 26, 2025: about 688 more stars than usual, peak 487 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Aug 12, 2025 to Aug 12, 2025: about 181 more stars than usual, peak 316 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Sep 22, 2025 to Sep 24, 2025: about 242 more stars than usual, peak 214 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Oct 26, 2025 to Oct 29, 2025: about 336 more stars than usual, peak 219 in one day, a spike that tapers off. We couldn't check for an outside explanation.
• Nov 1, 2025 to Nov 2, 2025: about 213 more stars than usual, peak 261 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Mar 6, 2026 to Mar 12, 2026: about 546 more stars than usual, peak 279 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Apr 2, 2026 to Apr 2, 2026: about 84 more stars than usual, peak 218 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
• Apr 25, 2026 to Apr 30, 2026: about 1.6k more stars than usual, peak 673 in one day, a shape we can't classify. No outside explanation found, so this burst is unexplained.
• Aug 3, 2026 to Aug 12, 2026: about 1.9k more stars than usual, peak 711 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.

• 23 stars GitHub has since removed (tracked since Oct 13, 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

CC-BY-4.0

A year ago

CC-BY-4.0

Packages

No published packages found.

OpenSSF Scorecard: 4.1 out of 10 (via deps.dev).

Sources: GitHub: donnemartin/system-design-primer