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Open-source QA tools under the GPL-3.0 license: 4 listed

4 listed tools are released under GPL-3.0, an OSI-approved license with SPDX identifier GPL-3.0. The license is the one the repository host reports for the repository, checked against the SPDX list of OSI-approved licenses. This page does not give legal advice; read the license text in each repository.

The table is sorted by GitHub stars, descending, on the fetch date. Filter by category, language or status, or select a column heading to sort. All licenses.

Fewer than 5 listed tools use this license, so the page is not offered to search engines.

Metrics as of , from the GitHub or GitLab API of each repository. Refreshed monthly.

Tools under GPL-3.0. Sorted by GitHub stars, descending. Select a column heading to change the sort.
ShellCheck40,06712025-08-041v0.11.02026-09-211GPL-3.0Haskellactive
golangci-lint19,39412026-08-271v2.13.22026-09-201GPL-3.0Goactive
Hadolint12,42512026-07-311v2.15.12026-08-241GPL-3.0Haskellactive
Cppcheck6,75512026-09-1912.22.02026-09-221GPL-3.0C++active

1 Fetched from the GitHub or GitLab API on . Hover a value for its own date.