Pandoc is a Haskell library for converting from one markup format to another, and a command-line tool that uses this library.
Cost / License
- Free
- Open Source (GPL-2.0)
Platforms
- Mac
- Windows
- Linux

txt2tags is described as 'It reads a text file with minimal markup such as bold and //italic// and converts it to the following formats (among others):' and is a Code Editor in the development category. There are nine alternatives to txt2tags for a variety of platforms, including Linux, Mac, Windows, Web-based and Self-Hosted apps. The best txt2tags alternative is Pandoc, which is both free and Open Source. Other great apps like txt2tags are AsciiDoc, Textile, Asciidoctor and Unmarkdown.
Pandoc is a Haskell library for converting from one markup format to another, and a command-line tool that uses this library.

Text processor for AsciiDoc format https://en.wikipedia.org/wiki/AsciiDoc which is human readable text format, similar to Markdown format, but with more complex syntax usage (but not so complex like LaTeX).

Textile is a lightweight markup language originally developed by Dean Allen and billed as a "humane web text generator". Textile converts its marked-up text input to valid, well-formed XHTML and also inserts character entity references for apostrophes, opening and...
Asciidoctor is a fast text processor and publishing toolchain for converting AsciiDoc content to HTML5, DocBook 5 (or 4.5) and other formats.

Publish markdown beautifully to Google Docs, Word, Slack, and more. Paste AI-generated markdown, style with 62 templates, and copy perfectly formatted output to any destination.




The MarkItDown library is a utility tool for converting various files to Markdown (e.g., for indexing, text analysis, etc.).