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Pick up to four tools and compare adoption, momentum and maintenance at a glance. The crown marks the leader in each row.
| Metric | coverage.py | Istanbul | c8 | JaCoCo |
|---|---|---|---|---|
| Stars | 3.4k | 5.8k | 2.1k | 4.6k |
| Weekly downloads | 79.2M | 9.5M | 5.2M | n/a |
| Download growth | +18% | -8% | +4% | n/a |
| Popularity score | 82/100 | 78/100 | 73/100 | 67/100 |
| Forks | 554 | 361 | 100 | 1.2k |
| Open issues | 321 | 206 | 123 | 250 |
| Last commit | 4d ago | 5mo ago | 2w ago | 1d ago |
| Latest version | 7.17.2Nov 4, 2026 | 18.0.0 | 12.0.0 | n/a |
| License | Apache-2.0 | ISC | ISC | n/a |
| First released | 2018 | 2015 | 2017 | 2012 |
| Signals | Popular | Popular | None | Popular |
| Listed in | Testing & QA › Coverage, Reporting & Test Analytics | Testing & QA › Coverage, Reporting & Test Analytics | Testing & QA › Coverage, Reporting & Test Analytics | Testing & QA › Coverage, Reporting & Test Analytics |
Hover for exact values; switch to log scale for tools of very different sizes. Not shown (no comparable download data): coverage.py, JaCoCo.