serde-rs/json vs sharkdp/fd
Both showing Healthy signals — pick on fit, not health
As of June 2026, json and fd both show healthy maintenance signals. json last saw a commit 2 months ago with 14+ active contributors, while fd last saw a commit 1 month ago with 17+ active contributors. Both use the Apache-2.0 license. 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.
serde-rs/json →
Healthy across all four use cases
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.
- ⚠Single-maintainer risk — top contributor 85% of recent commits
- ✓Last commit 4w ago
- ✓14 active contributors
- ✓Apache-2.0 licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
sharkdp/fd →
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.
- ⚠Concentrated ownership — top contributor handles 53% of recent commits
- ✓Last commit 5d ago
- ✓17 active contributors
- ✓Apache-2.0 licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| json | fd | |
|---|---|---|
| Stars | 5,554 | 42,886 |
| Last commit | 2mo ago | 1mo ago |
| License | Apache-2.0 | Apache-2.0 |
| Open issues | 224 | 182 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 100% | 19% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Healthy signals | Healthy signals |
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