Head-to-head · Linters
Credo vs Biome
Credo leads on 0 checks, Biome on 1, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreCredo · 8.5/10
- Free planboth
- Most featuresBiome · 4 of 4
Credo scores higher on our rubric for linters: 8.5 against 8.4 out of 10; our editors rank them #7 and #8.
Biome leads on languages supported: 17 versus 1.
Credo is the better fit for elixir teams checking style and complexity. Biome is the better fit for teams linting and formatting web code.
- Credo fits best
Elixir teams checking style and complexity
- Biome fits best
Teams linting and formatting web code
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Side by side
| Feature | Credo 8.5/10 Visit ↗ | Biome 8.4/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.5 | 8.4 |
| Ranking | #7 in Linters | #8 in Linters |
| Best for | Elixir teams checking style and complexity | Teams linting and formatting web code |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Desktop |
| Support | Docs | Community, Docs |
| Integrations | 7 integrations | 5 integrations |
| Built for | Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features Credo 3/4 · Biome 4/4 | ||
| Autofix | Not checked yet | ✓ (best) |
| Custom rules | ✓ | ✓ |
| Security rules | ✓ | ✓ |
| CI support | ✓ | ✓ |
| Specs | ||
| Languages supported | 1 | 17 (best) |
| IDE support | Ide | Ide |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Credo is an open-source static code analysis tool for Elixir projects. It is aimed at developers and teams that want consistent style, maintainable code, and earlier feedback on common mistakes. Its checks cover naming, coding style,… Read the review → |
Biome is an open-source toolchain for web projects, combining a formatter, linter, command-line interface, and Language Server Protocol integration. It is aimed at developers and teams maintaining modern web applications, with support for… Read the review → |
Strengths and trade-offs
Credo — where it wins
- Covers mistakes, style, refactoring, and complexity findings
- Supports strict mode, explanations, JSON, and SARIF output
- Offers custom checks, plugins, and broad editor integrations
Where it doesn't
- Supports Elixir rather than multiple programming languages
- Installation and use center on Mix and the command line
- Teams may need another tool for broader language coverage
Biome — where it wins
- Combines linting, formatting, autofixes, import sorting, and CI checks
- Supports editor workflows through VS Code, IntelliJ, and Zed integrations
- Offers custom diagnostics, configurable rules, Docker images, and standalone binaries
Where it doesn't
- Some listed languages are experimental or in progress
- Not all listed language entries currently support linting
- Its focus is web projects rather than general-purpose codebases
- Credo8.5/10 · Free plan
A focused, free Elixir linter for style, complexity, refactoring, and custom checks.
Visit CredoFull verdict → - Biome8.4/10 · Free plan
An open-source web toolchain combining linting, formatting, fixes, and editor support.
Visit BiomeFull verdict →
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All linters comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update