Biome vs Codacy
Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Free and open source
Open sourceFrom $18 per developer/month (Team, billed annually; $21 monthly)
Free tierWhat drives the bill
The metric that actually scales your invoice.
Free and open source. You pay in engineering time and CI minutes.
Per-developer pricing rather than lines of code, which suits small teams with large codebases. Team covers up to 30 developers and 100 private repos; beyond that Business is quote-based.
Free tier
Everything, self-hosted
Developer plan is free forever, and Team is free for open-source projects.
Open source
MIT
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
Biome / OSS community · since 2023
Established
Codacy · since 2014
Strengths
- Dramatically faster than ESLint plus Prettier, which matters on pre-commit hooks.
- One binary and one config replaces two toolchains.
- Very good ESLint rule migration tooling.
- Per-developer pricing is cheaper than SonarQube for small teams on big repositories.
- Bundles quality and security scanning in one PR check.
- Very quick to set up — connect a repository and it works.
Limitations
- Rule coverage does not yet match ESLint's plugin ecosystem.
- No support for framework-specific plugin ecosystems at ESLint's depth.
- Young project, so expect churn.
- Wrapping open-source linters means analysis depth depends on those tools.
- Configuration across many languages becomes fiddly.
- Less established than SonarQube in enterprise procurement.
Best for
New JavaScript projects and teams frustrated by lint performance.
Small and mid-sized teams wanting quality and security checks in PRs without running a server.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.