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Alternatives to Oxlint

4 editor-selected alternatives · Oxlint overview →

source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order

A directional evidence panel appears only when the substitute rationale, trade-offs, sources, and verification date have been recorded. Older selections without that panel remain visible but are unclassified under the new evidence contract.

ESLint logo
1

ESLint

open sourceexplicit relation

ESLint is the standard open-source linter for JavaScript and TypeScript with 26K+ GitHub stars. Statically analyzes code to find problems, enforce coding conventions, and automatically fix issues. Features a pluggable rule architecture with 300+ built-in rules and thousands of community plugins for React, Vue, Angular, Node.js, and more. Flat config system in ESLint v9 simplifies configuration. Integrates with every major editor, CI/CD pipeline, and build tool in the JavaScript ecosystem.

100% free and open source under the MIT License hosted by the OpenJS Foundation ($0 software cost). ESLint is the standard pluggable JavaScript and TypeScript linter with zero licensing fees.
Biome logo
2

Biome

open sourceexplicit relation

Biome is a Rust-based toolchain for JavaScript, TypeScript, JSX, JSON, and CSS that combines formatting and linting in a single tool running 20-50x faster than ESLint + Prettier. Provides 300+ lint rules with automatic fixes, opinionated formatting compatible with Prettier output, and import sorting. Zero configuration needed to start with sensible defaults. Designed as a drop-in replacement for ESLint and Prettier with first-class IDE support via VS Code and JetBrains extensions.

Biome is 100% free and open-source software licensed under MIT and Apache 2.0, providing an ultra-fast formatter and linter for JavaScript, TypeScript, JSX, and JSON with no licensing fees.
Prettier logo
3

Prettier

open sourceexplicit relation

Prettier is an opinionated code formatter with 50K+ GitHub stars that enforces a consistent style by parsing and reprinting code with its own rules. Supports JavaScript, TypeScript, CSS, HTML, JSON, Markdown, YAML, GraphQL, and more. Eliminates style debates in code reviews by making formatting automatic and deterministic. Features minimal configuration by design, editor integration for format-on-save, and pre-commit hooks via husky. The de facto formatting standard for web development.

100% free and open source under the MIT License ($0 software cost). Prettier is an opinionated multi-language code formatter with zero licensing fees across personal and enterprise projects.
Ruff logo
4

Ruff

open sourceexplicit relation

Ruff is a Python linter and code formatter written in Rust by Astral that runs 10-100x faster than existing tools like flake8, isort, and Black. It implements over 800 lint rules from dozens of popular plugins in a single binary, handles auto-fixing for most violations, and includes a built-in formatter compatible with Black. Adopted by FastAPI, Hugging Face, Pandas, and Apache Airflow, Ruff has over 38,000 GitHub stars and processes entire codebases in milliseconds.

Free and 100% open source under dual MIT and Apache-2.0 licenses. Ruff has $0 software licensing fees and no subscription tiers; built in Rust by Astral, it replaces Flake8, Black, isort, and pyupgrade at 10–100x speed, drastically cutting CI compute minutes.

Open-source Oxlint alternatives

ESLint, Biome, Prettier, Ruff — see all open-source developer tools.

More Testing & QA tools

same category, not editor-selected alternatives — see how Oxlint compares →

MCP InspectorMCP Inspector is the official interactive developer tool from the Model Context Protocol team for testing, debugging, and validating MCP servers. It provides a visual interface to inspect available tools, test transport configurations, export configs for different clients, and verify protocol compliance during MCP server development.PlaywrightCross-browser E2E testing framework by Microsoft supporting Chromium, Firefox, and WebKit with one API. Features auto-waiting, tracing with timeline/screenshots/DOM snapshots, codegen for recording tests, and parallel execution. Component testing for React, Vue, Svelte. Built-in API testing, network mocking, and mobile emulation. Known for reliability and speed vs Selenium/Cypress. 70K+ GitHub stars, rapidly becoming the E2E standard.DeepEvalDeepEval is an Apache-2.0 Python framework for evaluating LLM apps, RAG systems, agents, MCP workflows, and safety behavior with repeatable test cases. It works locally and in CI/CD, then connects to Confident AI for hosted reports, observability, red teaming, and governance when teams need shared evidence instead of ad-hoc prompt reviews and manual QA.reviewdogreviewdog is an open-source automated code review tool that integrates any linter or static analysis tool with GitHub, GitLab, Bitbucket, and Gitea pull requests. Parses output in errorformat, Checkstyle XML, SARIF, and JSON formats to post inline review comments on changed lines only. Works with GitHub Actions, Travis CI, CircleCI, GitLab CI, and Jenkins. Supports 40+ languages through universal linter adapter architecture.LangfuseLangfuse is an open-source LLM engineering platform with 29K+ GitHub stars for tracing, evaluating, and monitoring AI applications. Acquired by ClickHouse, it provides detailed traces of LLM calls, prompt management with versioning, dataset-based evaluation, user feedback collection, and cost tracking. Framework-agnostic with native integrations for LangChain, LlamaIndex, OpenAI SDK, and Vercel AI SDK. Offers both self-hosted deployment and a managed cloud service.StablyStably enables developers to create QA tests in plain English using a no-code editor, with AI ensuring tests remain valid as the application evolves through self-healing locators and assertions. It lowers the barrier to high-quality QA for startups by eliminating the need for scripting knowledge, automatically adapting test steps when UI elements change position or structure.CUA (Computer-Use Agent)Open-source computer-use infrastructure for agents that need to drive desktop environments in the background. CUA includes Cua Driver, Sandbox, Run, Bench, and Verified Data across Linux, Windows, macOS, and Android, with MCP and CLI surfaces for screenshots, accessibility trees, keyboard/mouse actions, shell commands, task evaluation, and fleet execution.ChromaticChromatic is a Storybook-first visual testing and UI review platform for design systems and frontend teams. It publishes Storybook, captures component snapshots, reviews pull-request diffs, and supports interaction tests, accessibility checks, TurboSnap, SteadySnap, Playwright/Cypress workflows, and Storybook MCP context.MomenticMomentic is an AI-native testing platform that lets teams write end-to-end tests in plain English. It features auto-healing test selectors that adapt to UI changes, instant mobile device emulators, built-in visual regression testing, and AI-powered flaky test handling. Backed by $15M Series A from Standard Capital, it eliminates brittle test maintenance through intelligent element identification and self-repairing test flows.

FAQ

Which Oxlint alternative is listed first?

ESLint is first in the editor-selected list of 4 Oxlint alternatives. The stored order is editorial; review scores do not determine membership or position.

Are there open-source Oxlint alternatives?

Yes — ESLint, Biome, Prettier, and more are open source.