Quick Comparison
| Biome | ESLint + Prettier | |
|---|---|---|
| Speed | 10-100x faster (Rust) | Slower (JavaScript) |
| Config | Single tool | Two tools, two configs |
| Formatting | Built-in | Needs Prettier |
| Plugin ecosystem | Small | Massive |
| Migration | Easy from ESLint | N/A |
When to Use Biome
- New projects
- You want one tool for linting AND formatting
- You want maximum speed
- You don’t need niche ESLint plugins
When to Use ESLint
- You need specific plugins (import sorting, accessibility, etc.)
- Existing projects with ESLint configs
- Your team has custom rules
- You need the broadest ecosystem
Verdict
Biome for new projects that don’t need niche plugins — it’s dramatically faster and simpler. ESLint if you need its plugin ecosystem.