Biome vs Eslint

Biome and ESLint compete as JavaScript/TypeScript code quality tools, representing the new all-in-one approach versus the established plugin ecosystem.

Overview

Biome is an all-in-one toolchain (formatter + linter) written in Rust that's 100x faster than ESLint + Prettier combined. ESLint is the established JavaScript linter with the largest rule and plugin ecosystem, supporting virtually any coding standard.

Key Differences

Speed: Biome is dramatically faster (100x+). On large codebases, ESLint can take minutes; Biome takes milliseconds. All-in-one: Biome replaces ESLint + Prettier in one tool. ESLint requires Prettier as a separate formatter. Plugin ecosystem: ESLint has thousands of community plugins (React, Vue, accessibility, etc.). Biome has built-in rules but no plugin system. Configuration: Biome requires minimal configuration. ESLint configurations can become complex with multiple plugins. Migration: Moving from ESLint to Biome means losing specialized plugins. Biome provides a migration tool for common rules.

Verdict

Choose ESLint if you rely on specialized plugins (framework-specific rules, accessibility, etc.) or need maximum customization. Choose Biome for an all-in-one, blazing-fast toolchain when built-in rules cover your needs.