Djot is a light markup syntax. It derives most of its features from commonmark, but it fixes a few things that make commonmark's syntax complex and difficult to parse efficiently. It is also much fuller-featured than commonmark, with support for definition lists, footnotes, tables, several new kinds of inline formatting (insert, delete, highlight, superscript, subscript), math, smart punctuation, attributes that can be applied to any element, and generic containers for block-level, inline-level, and raw content. The project began as an attempt to implement some of the ideas I suggested in Beyond Markdown.

• Djot @ GitHub.

Fast, Git Friendly API Client

Bruno is a new and innovative open source API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.

Bruno stores your collections directly in a folder on your filesystem. We use a plain text markup language, Bru, to save information about API requests.

• Bruno @ GitHub.
• Dites adieu à Postman grâce à Bruno qui vous aidera à concevoir les meilleurs API de l’univers @ Korben :fr:.

Compose theses faster. Focus on your text and let Typst take care of layout and formatting.
A new markup-based typesetting system that is powerful and easy to learn.
Typst is a new markup-based typesetting system that is designed to be as powerful as LaTeX while being much easier to learn and use.

• Typst @ GitHub.
• Typst – La puissance de LaTeX mais en toute simplicité @ Korben(fr).

DBML (Database Markup Language) is an open-source DSL language designed to define and document database schemas and structures. It is designed to be simple, consistent and highly-readable.