What is github-action-benchmark used for?

github-action-benchmark is a GitHub Action that collects benchmark results, charts them on GitHub Pages and alerts you when performance regresses. It is a good fit for tracking performance of a library over time, blocking pull requests that slow down hot paths and publishing benchmark history for a project.

Is github-action-benchmark open source?

Yes. github-action-benchmark is open source under the MIT licence. Its source code is on GitHub at benchmark-action/github-action-benchmark and is written mainly in TypeScript.

Is github-action-benchmark free?

Yes. github-action-benchmark is open source, so the software itself is free to use.

What are some alternatives to github-action-benchmark?

Similar open-source tools in the Testing & QA category include Bencher, k6 and ClusterFuzzLite. SaaS products in the same category include Codecov, Coveralls and Cypress Cloud.

Is github-action-benchmark actively maintained?

Yes. The most recent commit to github-action-benchmark was on 15 September 2026, and the latest release is v1.22.2, published on 15 September 2026. The project has 1.3k stars on GitHub.

github-action-benchmark: open-source testing & QA

About github-action-benchmark

github-action-benchmark is a GitHub Action for continuous benchmarking. If your project has benchmark suites, the action reads their output in a workflow, stores the results and helps you watch performance change over time so slowdowns are noticed before release.

It can save results to a branch on GitHub Pages and display them as charts, and it can compare new results with previous ones to detect regressions. When results get worse than a configured threshold, it can raise an alert through a commit comment or fail the workflow. It supports many tools, including cargo bench, go test, benchmark.js, pytest-benchmark, Google Benchmark, Catch2, BenchmarkTools.jl, BenchmarkDotNet, JMH and custom benchmarks, and polyglot repositories can use several at once.

The action is written in TypeScript and licensed under MIT. It runs inside your own GitHub Actions workflows, with example projects and live workflows provided in the repository. It suits maintainers of libraries and performance-sensitive applications who want automated regression tracking in CI.

Key features

Collects results from many benchmark tools
Charts results on GitHub Pages
Regression detection with thresholds
Alerts via commit comment or workflow failure
Support for polyglot repositories
Custom benchmark formats

Good fit for

→Tracking performance of a library over time
→Blocking pull requests that slow down hot paths
→Publishing benchmark history for a project

Built with: TypeScript
Tags: benchmarking; github-actions; ci; performance; regression-detection; typescript; continuous-benchmarking; devops

github-action-benchmark: questions and answers

What is github-action-benchmark used for?: github-action-benchmark is a GitHub Action that collects benchmark results, charts them on GitHub Pages and alerts you when performance regresses. It is a good fit for tracking performance of a library over time, blocking pull requests that slow down hot paths and publishing benchmark history for a project.
Is github-action-benchmark open source?: Yes. github-action-benchmark is open source under the MIT licence. Its source code is on GitHub at benchmark-action/github-action-benchmark and is written mainly in TypeScript.
Is github-action-benchmark free?: Yes. github-action-benchmark is open source, so the software itself is free to use.
What are some alternatives to github-action-benchmark?: Similar open-source tools in the Testing & QA category include Bencher, k6 and ClusterFuzzLite. SaaS products in the same category include Codecov, Coveralls and Cypress Cloud.
Is github-action-benchmark actively maintained?: Yes. The most recent commit to github-action-benchmark was on 15 September 2026, and the latest release is v1.22.2, published on 15 September 2026. The project has 1.3k stars on GitHub.