| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Test Coverage Tools | 7.7 (#11) | 7.6 (#13) |
| Configuration | c8 accepts command-line flags, a c8 section in package.json, or a JSON configuration file. | The user guide includes configuration files, exclusion markers and reproducible timestamp features. |
| Installation | The README shows installing c8 globally with npm and running it with a Node.js script. | gcovr is distributed as a Python package installable with pip, with development versions installable from GitHub. |
| License | The repository identifies its license as ISC. | gcovr is available under the BSD 3-Clause License. |
| Purpose | c8 produces code coverage reports using Node.js’ built-in V8 coverage. | gcovr manages GNU gcov and generates summarized code coverage results. |
| Report formats | The README documents Istanbul-compatible reporters and an experimental Monocart option with v8 and console-details reporters. | It generates text, HTML, CSV, JSON, Markdown, Clover, Cobertura, Coveralls, JaCoCo, LCOV and SonarQube reports. |