ESLint
Find and fix problems in your JavaScript code with a pluggable linter tool.
Looking for an open-source alternative to Prettier? Below are 5 community-built tools that offer similar functionality — all free, open source, and ready to use or self-host. Ranked by GitHub stars.
Find and fix problems in your JavaScript code with a pluggable linter tool.
Biome is a comprehensive toolchain for web projects, providing powerful formatting and linting capabilities through a CLI and LSP interface. Designed to help developers maintain code quality and consistency across their projects, Biome integrates seamlessly into modern workflows.
Destiny is a tool like Prettier, but for organizing and prettifying your project's file structure, enhancing code readability and project maintainability.
The AI-ready formatter that helps you write and generate code faster. It integrates AI technology to enhance efficiency in coding.
Ruler lets you enforce consistent coding standards and rules across all coding agents, ensuring uniformity and quality in collaborative and AI-assisted development environments.
The top picks from this list are ESLint, Biome, Destiny — all maintained, free to use, and self-hostable.
Yes. Every tool listed here is open source and free to use. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Most of the alternatives listed are self-hostable. Check each tool's page for hosting details, system requirements, and licensing terms.
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