Announcing Oxlint 1.0

TL;DR: The first stable version Oxlint has been released! With a 50~100x performance improvement over ESLint, support for over 500 ESLint rules, and usage in major companies like Shopify, Airbnb, and Mercedes-Benz, you should give it a try. Get started now.

Oxlint is a Rust-powered linter for JavaScript and TypeScript is designed to be fast and simple to adopt. Since its first announcement back in December 2023, Oxlint has undergone significant improvements and is now shipping its first stable version, 1.0. In addition to the stable release, we also want to announce that Oxlint has a dedicated full-time maintainer, Cameron, and a growing core team working on maintaining and improving the linter.

Real-World Impact ​

We are extremely proud of the performance of Oxlint and its impact on real, large-scale codebases, which has led to reduced CI costs.

We are thankful for our 5,200 early adopters and for companies and projects such as:

• Shopify, where the front-end platform team uses Oxlint in the Shopify admin console.
• Airbnb, where they use multi-file analysis oxc/no-barrel-file and import/no-cycle on their 126,000+ files, which completes in 7s on CI. ESLint's implementation of these rules times out.
• Mercedes-Benz, where they observed a 71% decrease in lint time when swapping ESLint to Oxlint, with some project seeing up to a 97% speedup.
• Large Open Source projects, from runtimes like Bun to frameworks like Preact.

On the largest repository we found, Oxlint reported:

Finished in 22.5s on 264925 files with 101 rules using 10 threads.

Based on real-world cases posted on X and Bluesky, Oxlint runs at approximately 10,000 files per second, depending on the total number of threads used.

Quick Start ​

Oxlint is perfect for developers who want to start linting their code without spending hours configuring tools. With zero setup required, you can start catching issues immediately:

Run it, no config required.

$ npx oxlint@latest

$ pnpm dlx oxlint@latest

$ yarn dlx oxlint@latest

$ bunx oxlint@latest

$ deno run npm:oxlint@latest

While no setup or configuration is needed, Oxlint is configurable via an .oxlintrc.json file, which is useful for larger projects or projects that require more customization. This configuration format is based on ESLint v8’s flat config, making migration easy and familiar. Each source file is linted with the nearest applicable configuration, and you can use overrides to target specific glob patterns. You can also extend shared configs to keep teams consistent.

For projects already using ESLint, oxlint-migrate can be used to migrate an existing ESLint flat-config file to Oxlint. Additionally, eslint-plugin-oxlint can disable overlapping ESLint rules while both linters are used together. It is recommended to run oxlint && eslint to benefit from Oxlint's faster feedback cycle.

For more detailed instructions on how to use Oxlint and integrate it with your project or editor, check out the installation guide.

Versioning ​

Unlike libraries that ship runtime code, a linter only changes the diagnostics it returns. Oxlint adheres to semantic versioning:

• Patch releases: Bug fixes only.
• Minor releases: Expand rule coverage and diagnostics, without requiring configuration changes.
• Major releases: CLI or configuration changes, that may require migration. Note that minor releases can still break your CI if newly added rules uncover previously hidden issues. Learn more in our Versioning guide.

Highlights ​

Comprehensive Rule Coverage ​

Oxlint includes over 500 rules from various sources:

• Complete ESLint rule set, including TypeScript-specific rules from typescript-eslint (excluding type checked rules).
• Popular plugin rules from eslint-plugin-unicorn, eslint-plugin-jsdoc, eslint-plugin-react, eslint-plugin-react-hooks, eslint-plugin-jest, and eslint-plugin-import
• Unique Oxlint rules like bad comparison sequence, const comparisons, and only used in recursion

Flexible Configuration ​

Configure Oxlint through .oxlintrc.json files with support for:

• Nested configurations that apply to specific directories
• Override patterns for targeting specific file types or locations
• Shared configuration extending for team consistency

Editor Integration ​

First-class editor support with extensions for:

• VS Code
• IntelliJ IDEA and WebStorm
• Zed Editor
• Language server protocol support for other editors

Helpful Diagnostics ​

Oxlint is built to deliver clear, actionable error messages - not just describing the issue, but visualizing it and suggesting how to fix it.

Oxlint running in the terminal with detailed error reporting

Benchmark ​

Our benchmark reveals that Oxlint is around 50~100 times faster than ESLint with the same setup.

Roadmap ​

Oxlint 1.0 is just the beginning! While it is stable, we still have important features and improvements planned for future releases:

Custom Rules – JavaScript plugin support is coming soon, enabling teams to write custom rules that integrate seamlessly with Oxlint's architecture.

Performance Optimizations – Continued improvements to parsing and analysis speed.

Fine-grained (per-glob) configuration - ESLint v9 configuration

Acknowledgements ​

Oxlint 1.0 represents the collective effort of over 200 contributors who have shaped this project. We're grateful for every bug report, feature request, and code contribution.

Special recognition goes to:

• @branchseer for implementing the multi-file analysis runtime.
• @camc314, @mysteryven, and @shulaoda for implementing many sophisticated lint rules, testing, and constantly improving everything.
• @camchenry for implementing nested configuration support.
• @DonIsaac for improving configuration, documentation and website, and for representing Oxc at SquiggleConf 2024.
• @leaysgur for the RegExp parser and JSDoc plugin.
• @Sysix for maintaining eslint-plugin-oxlint and significant contributions to the language server and VSCode extension.
• @u9g and @rzvxa for implementing control flow graph analysis.

Join the Community ​

We'd love to hear your feedback on Oxlint and are excited to see how it helps improve your development workflow. Connect with us:

• Discord: Join our community server for real-time discussions
• GitHub: Share feedback on GitHub Discussions
• Issues: Report bugs or request features on our issue tracker

Your feedback drives Oxlint's evolution.

Give It a Try ​

To get started, follow the installation guide, or learn more about the Oxc project.