golangci-lint (golangci/golangci-lint)
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What is this?
A fast linters runner for Go: one tool that runs over a hundred Go linters on your codebase in a single pass.
Is it one linter, or a bundle of many?
It's a runner that bundles more than a hundred existing Go linters, so a single install and config replaces a whole pile of separate tools.
How do I get it onto my machine and into my CI?
The install docs give two paths: a guide for your own machine and a separate one for CI/CD systems, with the full documentation hosted on its own site.
Does it need anything besides my Go project to run?
Nothing beyond your Go codebase — no API keys, accounts, or extra services; it analyzes the project directly.
Any gotchas before I adopt it?
It's Go-only by design — it won't lint other languages, and the README lists no special hardware or OS requirements.
Is it free to use, including at work?
Yes — it's free and open source under GPL-3.0 (per repo metadata), built by volunteers who accept donations; the GPL covers the tool itself, not the code it checks.
How do I pick which linters run?
Everything is configured through a single YAML file — you enable and tune individual linters there instead of wiring up each tool separately.
Will running a hundred linters slow my build down?
No — linters run in parallel and results are cached, which is what keeps a full sweep fast enough for local runs and CI.
Do findings show up inside my editor?
Yes — it integrates with all major IDEs, so you see issues as you code, not only in CI logs.
Is the project actively maintained?
Yes — started in 2018, around 19,400 GitHub stars, and the repo runs automated CI checks and release workflows.
What are similar projects?
shellcheck, knip, perch, hadolint, rust-clippy, mypy, kani, static-analysis
Which topics is it in?
code-analysis, linter, code-quality, static-analysis, ci, golang, devops, gplv3, performance, go, free, tool