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Open source
14 alternativesCodSpeed
CodSpeed runs continuous performance benchmarks in CI, catches regressions in pull requests, and proposes optimizations.
About CodSpeed
CodSpeed runs continuous performance benchmarks in CI and reports results in pull requests. It profiles code, flags regressions, and can block merges that degrade execution speed.
It provides differential flamegraphs to show which lines of code got slower, and an optimization agent that applies a fix, benchmarks it, and opens a pull request for review. It supports Rust, Python, Node.js and more.
Key features
- Runs continuous performance benchmarks in CI
- Catches performance regressions in pull requests
- Shows differential flamegraphs pinpointing slower lines of code
- Blocks merges that degrade execution speed
- Optimization agent applies fix and opens pull request
- Supports Rust, Python, Node.js and more
Best for: Development teams that use CI and want performance regression checks in pull requests.
Good for
- Benchmarks run in CI and report in pull requests
- Automatic code profiling without manual benchmarking
- Supports Rust, Python and Node.js
CodSpeed at a glance
- Website
- codspeed.io
- Category
- Development › Web Development
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
CodSpeed alternatives
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CodSpeed FAQ
Which programming languages does CodSpeed support?
Rust, Python, Node.js, and more, with benchmark testing in pull requests.
How does CodSpeed address noisy CI benchmark results?
It isolates relevant performance data and filters system jitter, stating variance below 1%.
Does CodSpeed automatically fix performance issues?
Its Optimization Agent applies a fix, benchmarks the result, and opens a pull request for review.
Is something wrong or out of date?
Tell us and an editor will check it.
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