Compare
Biome vs Oxc
Same catalog, two overlapping tools. Catch and verdict side by side. No winner score.
Biome
Rust formatter and linter that replaces Prettier plus ESLint
Apache-2.0 · open-source
The Catch
Not a 1:1 ESLint plugin ecosystem. Some rules and framework plugins do not exist yet. Dual-license is MIT OR Apache-2.0 at your option — there is no single LICENSE file at the repo root.
Verdict
The default JS format+lint binary in 2026. Fast, dual-licensed, not ESLint.
Oxc
MIT Rust JS/TS toolchain: parser, linter, and friends
OSS/MIT · open-source
The Catch
Oxc is the lower-level toolchain / oxlint lane, not a Biome killer. It will not replace Prettier+ESLint overnight the way Biome’s single format+lint tool can.
Verdict
MIT Rust JS/TS toolchain. Substrate and oxlint, not Biome.