Oxc Parser

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library 0.126.0 ·javascript
verified May 27, 2026

The `oxc-parser` package provides a high-performance JavaScript and TypeScript parser with a Node.js API, currently at version 0.126.0. It's part of the broader Oxc project, known for its fast Rust-based tooling. The project exhibits a rapid release cadence, with frequent updates incorporating new features, bug fixes, and occasional breaking changes as seen in recent `crates_v` releases. Oxc Parser generates an AST that is fully conformant with the ESTree standard for JavaScript/JSX and `@typescript-eslint/typescript-estree` for TypeScript, with minor deviations for Stage 3 decorators and specific import syntax proposals (`import defer`, `import source`). A key differentiator is its 'Fast Mode,' which disables semantic error reporting by default for performance-critical scenarios, leaving error checks to downstream tools. It also offers WASM support and direct ESM information extraction, making it suitable for parser plugins and code transformation tasks.

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