reStructuredText is a more formalized and powerful alternative to Markdown, frequently used in the Python ecosystem for technical documentation. Its strength lies in its extensibility and ability to handle complex cross-referencing and indexing.

The reference implementation and parser for reStructuredText. It provides the fundamental tools for converting reST into other formats like HTML or XML.

The industry standard for reST documentation. It converts .rst files into HTML websites, PDFs (via LaTeX), ePubs, and more. It is used by major projects like Django and the official Python documentation.

A dedicated, cross-platform editor written in Python specifically designed for writing Markdown and reStructuredText with live previews. Converters & Utilities Sphinx — Sphinx documentation

A high-performance editor that uses Tree-sitter for precise syntax highlighting and real-time updates even in large files.