By default, Flarum supports Markdown and BBCode for formatting posts. citeturn0search2 This allows users to apply various text styles, create lists, add links, and more.
For example, to make text bold in Markdown, you can use **bold** or __bold__, and for italics, *italics* or _italics_. citeturn0search0
It's important to note that while Markdown is supported, some features like tables are not enabled by default. To add support for Markdown tables, you can install the FriendsOfFlarum Formatting extension, which enables additional formatting options, including table support.
Additionally, Flarum uses the s9e\TextFormatter library for parsing and rendering post content, which provides robust and secure text formatting capabilities. citeturn0search1