Developer ToolsFree Tool

ESLint to Biome Converter

Provided byDevBoltdevbolt.dev

Converts ESLint configs to Biome — maps 100+ rules from core, TypeScript, React, and import plugins.

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About this tool

What ESLint to Biome Converter does

ESLint to Biome Converter is a free online utility that translates ESLint configuration files into Biome-compatible format. Users input their existing ESLint rule definitions, and the tool generates the corresponding structure needed to implement those same checks using Biome’s syntax. The conversion maps over one hundred common coding rules originating from core JavaScript, TypeScript, React, and various import plugins, facilitating a seamless transition for developers modernizing their linting rulesets for JavaScript and TypeScript projects.

Step by step

How to use the DevBolt ESLint to Biome Converter

  1. 1

    Paste your existing ESLint configuration code into the input field

  2. 2

    Click the convert button to process the ESLint rules

  3. 3

    Review the generated Biome-compatible output displayed on screen

  4. 4

    Copy the converted configuration for use in your Biome setup

  5. 5

    Test the new Biome ruleset in your project to verify rule behavior

Is it right for you

Best for

Developers upgrading their tooling stack or adopting Biome who need to convert established ESLint rule definitions into the new format while maintaining code quality standards.

Limitations

  • Conversion results may require manual adjustment for edge cases
  • Not all ESLint rules have direct Biome equivalents
  • Complex custom rules may not map perfectly to Biome syntax
Questions

ESLint to Biome Converter FAQ

Can the converter handle TypeScript and React-specific ESLint rules?
Yes, the tool maps over 100 rules from core JavaScript, TypeScript, React, and import plugins, covering the most common configurations from these plugin ecosystems.
Do I need to install any software to use the ESLint to Biome Converter?
No, it is a web-based tool accessible directly through your browser; simply paste your ESLint config and convert without any local installation required.
Will the converted Biome config work identically to my original ESLint rules?
The conversion maps equivalent rules, but some edge cases or highly custom ESLint configurations may need manual tweaking to function exactly as in ESLint.
Is there a limit to the size or complexity of ESLint configs I can convert?
The material does not specify size limits, but very large or deeply nested configuration files may take longer to process or require simplification for best results.
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