A Java library for parsing and rendering Markdown text according to the CommonMark specification with extensible features.
commonmark-java is a Java library that parses and renders Markdown text strictly following the CommonMark specification. It converts Markdown documents into HTML or other formats while providing an abstract syntax tree for programmatic manipulation. The library solves the need for a fast, reliable, and extensible Markdown processor in Java applications.
Java developers building applications that require Markdown processing, such as documentation generators, content management systems, blogging platforms, or note-taking apps. It's also suitable for Android developers needing Markdown support with API level 19+.
Developers choose commonmark-java for its high performance, strict CommonMark compliance, and modular extensibility through optional extensions. Its thread-safe design, small footprint, and flexibility in customizing parsing and rendering make it a preferred choice over older or less maintained Java Markdown libraries.
Java library for parsing and rendering CommonMark (Markdown)
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Benchmarked as 10-20 times faster than older libraries like pegdown, making it highly efficient for parsing and rendering large volumes of Markdown.
Supports optional extensions for tables, footnotes, YAML front matter, and more via separate artifacts, allowing tailored functionality without bloating the core.
Parses Markdown into an abstract syntax tree that can be visited, modified, and rendered to HTML or back to Markdown, enabling programmatic document transformation.
Parser and renderer instances are configured once and safely reusable across multiple threads, ideal for concurrent applications.
The library is still in 0.x releases, meaning the API is not stable and may introduce breaking changes between minor versions, posing risks for production use.
Android compatibility is on a best-effort basis with minimum API level 19, so issues might not be fully prioritized or resolved, especially for older devices.
It does not sanitize HTML output for security; users must implement their own measures to prevent XSS attacks when rendering user-generated content.
Each extension requires a separate dependency, complicating build configurations and increasing the number of artifacts to manage compared to all-in-one libraries.