c8 vs Istanbul
| c8 | Istanbul | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | — | — |
| Coverage types | lines, functions, branches, statements | line, statement, function, branch |
| Supported languages | JavaScript, TypeScript, JSX | JavaScript, TypeScript |
| Report formats | text, Istanbul-compatible reporters, v8, console-details | text, HTML, lcov |
| Pull-request annotations | No | No |
| Self-hosted option | No | — |
| Historical trends | No | — |
| Coverage gates | Yes | Yes |
Both are listed in Best Test Coverage Tools. On Samsung Mobile US Press, c8 scores higher on our published basis.