google/grumpy vs uber-go/zap
uber-go/zap shows stronger signals overall
As of June 2026, zap shows healthier maintenance signals than grumpy. zap rates Healthy overall while grumpy rates Mixed. grumpy last saw a commit 4 years ago with 7+ active contributors, while zap last saw a commit 2 months ago with 33+ active contributors. grumpy is Apache-2.0-licensed while zap is MIT-licensed. Neither has known critical or high-severity CVEs in its dependency tree.
Informational only. RepoPilot summarises public signals at the time of analysis. Not professional, security, or legal advice.
google/grumpy →
Stale — last commit 4y ago
Permissive license, no critical CVEs, actively maintained — safe to depend on.
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
last commit was 4y ago; Scorecard "Branch-Protection" is 0/10
- ⚠Stale — last commit 4y ago
- ⚠Scorecard: marked unmaintained (0/10)
- ⚠Scorecard: default branch unprotected (0/10)
- ✓7 active contributors
- ✓Distributed ownership (top contributor 45% of recent commits)
- ✓Apache-2.0 licensed
- ✓CI configured
- ✓Tests present
What would improve this?
- →Deploy as-is Mixed → Healthy if: 1 commit in the last 180 days
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against OpenSSF Scorecard
uber-go/zap →
Healthy across the board
Permissive license, no critical CVEs, actively maintained — safe to depend on.
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ✓Last commit 2w ago
- ✓33+ active contributors
- ✓Distributed ownership (top contributor 26% of recent commits)
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| grumpy | zap | |
|---|---|---|
| Stars | 10,505 | 24,454 |
| Last commit | 4y ago | 2mo ago |
| License | Apache-2.0 | MIT |
| Open issues | 80 | 178 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 30% | 6% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Mixed signals | Healthy signals |
Want the full analysis? google/grumpy · uber-go/zap
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