Prettier
Prettier is an opinionated code formatter that enforces a consistent style by parsing your code and re-printing it with its own rules.
Looking for an open-source alternative to ESLint? Below are 9 community-built tools that offer similar functionality — all free, open source, and ready to use or self-host. Ranked by GitHub stars.
Prettier is an opinionated code formatter that enforces a consistent style by parsing your code and re-printing it with its own rules.
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.
Hosts TypeScript configuration files designed to be extended in a TypeScript application, tailored to specific runtime environments.
Destiny is a tool like Prettier, but for organizing and prettifying your project's file structure, enhancing code readability and project maintainability.
Textlint is a pluggable natural language linter specifically designed for linting text and markdown, enabling better writing quality through its extensible architecture.
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.
A tool to find and remove unused exports in a TypeScript project, enhancing code cleanliness and maintainability.
Automatic documentation generator for ESLint plugins and rules, streamlining the process of maintaining and creating consistent ESLint documentation.
The top picks from this list are Prettier, Biome, Bases — 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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