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Last updated on Mar 12, 2025
•5 mins read
Last updated on Mar 11, 2025
•5 mins read
Tired of waiting for your code to lint?
Slow linting can disrupt the whole development flow, making it harder to catch errors and polish your code. That’s where oxlint comes in. It’s a fast and reliable linter designed for JavaScript and TypeScript projects.
With oxlint, developers can quickly spot issues and improve code quality without slowing down.
oxlint is part of the Oxidation Compiler (Oxc) suite, a collection of high-performance tools for JavaScript and TypeScript written in Rust. Unlike traditional linters like ESLint, oxlint is designed to be incredibly fast, often completing in just a few seconds even on large codebases. This speed is achieved through parallel processing and leveraging the power of multiple CPU cores, making it 50 to 100 times faster than ESLint depending on the setup^1 .
To understand how oxlint fits into your workflow, let's visualize its integration with other tools:
1graph LR 2 A[Codebase] -->|Run oxlint| B[oxlint] 3 B -->|Identify Errors| C[Fix Errors] 4 C -->|Run ESLint| D[ESLint] 5 D -->|Final Checks| E[Code Ready]
This diagram shows how oxlint can be used as a first step to quickly identify and fix errors, followed by ESLint for more comprehensive checks.
To start using oxlint, you can install it using npm, yarn, or other package managers:
1npm install -D oxlint 2# or 3yarn add -D oxlint 4# or 5pnpm add -D oxlint
Once installed, you can run oxlint directly at the root of your repository:
1npx oxlint@latest
Alternatively, you can save it to your package.json file for easier integration into your project scripts.
A unique feature of oxlint is that it does not require Node.js to run. Binaries can be downloaded from the latest GitHub releases, making it accessible across different environments^3 .
If you're already using ESLint, you can use the oxlint-migrate script to convert your eslint.config.* file to an .oxlintrc.json config. This allows you to leverage oxlint's capabilities while maintaining some of your existing ESLint configurations.
You can customize your linting experience by creating an .oxlintrc.json file. This allows you to fine-tune which rules are enabled or disabled, giving you more control over your linting process.
To integrate oxlint with ESLint seamlessly, you can use the eslint-plugin-oxlint. This plugin allows you to run oxlint before ESLint, ensuring that you get the benefits of both tools in your workflow.
• oxlint is significantly faster than ESLint, making it ideal for large codebases where speed is crucial.
• It leverages Rust and parallel processing to scale with the number of CPU cores available.
• oxlint comes with over 480 rules enabled by default, focusing on correctness and error detection without requiring extensive configurations.
• It prioritizes identifying erroneous or redundant code, ensuring your project's integrity.
• oxlint can be easily integrated into your CI/CD pipeline or used with tools like lint-staged for pre-commit checks.
• It supports JavaScript and TypeScript files, including .js, .mjs, .cjs, .jsx, .ts, .mts, .cts, and .tsx.
The Oxidation Compiler (Oxc) is a suite of high-performance tools for JavaScript and TypeScript, all written in Rust. This includes a parser, linter, formatter, transformer, minifier, and resolver. The Oxc AST differs slightly from the estree AST, removing ambiguous nodes and introducing distinct types to improve performance and clarity^8 .
You can enhance your development workflow by integrating oxlint with lint-staged. This ensures that your code is linted quickly before committing, catching errors early in the development cycle.
To get the best of both worlds, you can run oxlint before ESLint in your CI setup. This provides a quicker feedback loop while still benefiting from ESLint's comprehensive checks.
oxlint is compatible with a wide range of platforms, including darwin-arm64, darwin-x64, linux-arm64, linux-x64, win32-arm64, and win32-x64. It can be used with various JavaScript tools and frameworks, making it versatile for different project needs.
If you're interested in contributing to oxlint, you can find guidance in the CONTRIBUTING.md file. There are also good first issues available for new contributors. Even if you can't contribute code, providing feedback and suggestions is valuable.
oxlint is free and open-source software licensed under the MIT License. It ports or copies code from other open-source projects, with their licenses listed in Third-party library licenses.
• oxlint is designed to catch erroneous or useless code without requiring any configurations by default.
• It's not intended to fully replace ESLint, but rather serves as an enhancement when ESLint's slowness becomes a bottleneck in your workflow.
• The linter is 50 to 100 times faster than ESLint, depending on the number of rules and CPU cores used.
• oxlint is a valuable tool for developers who want to ensure their code is error-free and efficient.
Oxlint is a helpful JavaScript linter that improves code quality and performance. Its fast processing makes it easy to spot and fix issues quickly. Developers looking to write cleaner, more reliable code can benefit from adding oxlint to their workflow. Give it a try and see how it helps simplify coding tasks.
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