[b]bold[/b] - bold
[i]italic[/i] - italic
[u]underlined[/u] - underlined
[s]strike[/s] - ~~strike~~
[color=red]red[/color] - red
[url=https://redmatrix.me]Red Matrix[/url] Red Matrix
[img]https://redmatrix.me/images/default_profile_photos/rainbow_man/48.jpg[/img]
[img float=left]https://redmatrix.me/images/default_profile_photos/rainbow_man/48.jpg[/img]
[img float=right]https://redmatrix.me/images/default_profile_photos/rainbow_man/48.jpg[/img]
[code]code[/code] code
[quote]quote[/quote]
quote
[quote=Author]Author? Me? No, no, no...[/quote]
Author wrote:
Author? Me? No, no, no...
[nobb] may be used to escape bbcode.

You can make lists with:

For example:
[ul]
[*] First list element
[*] Second list element
[/ul]

Will render something like:

There's also:

Tables? Yes!

[table border=1]
[tr]
[th]Tables now[/th]
[/tr]
[tr]
[td]Have headers[/td]
[/tr]
[/table]

Tables now
Have headers

All sizes,
From the [size=xx-small] - xx-small.
To the [size=xx-large] - xx-large.
To fit exactly 20px use [size=20].

Red Matrix specific codes

[zrl]https://redmatrix.me[/zrl] Magic-auth version of [url] tag
[zmg]https://redmatrix.me/some/photo.jpg[/zmg] Magic-auth version of [img] tag
[observer=1]Text to display if observer is authenticated in the matrix[/observer]
[observer=0]Text to display if observer is not authenticated in the matrix[/observer]
[observer.baseurl] website of observer
[observer.url] channel URL of observer
[observer.name] name of observer
[observer.address] address (zot-id) of observer
[observer.photo] profile photo of observer
[spoiler] for hiding spoilers
[rpost=title]Text to post[/rpost] The observer will be returned to their home hub to enter a post with the specified title and body. Both are optional