From left to right:

• Snapshot: saves the current page text, so you can use it later.
• Bold: makes the text bold.
• Italics: makes the text italic.
• Hyperlink: insert a normal link.
• Intrasite link: insert a greenlink to an Arbital page. This also allows you to search for existing pages and aliases.
• @Mention: insert a greenlink to a user's page. The user will be notified. Example: Alexei Andreev
• New page: create a new page in a popup without leaving your current area.
• Blockquote: adds blockquote to a text.

Blockquote

• Preformatted: formats the text using monospaced font. Useful for typing code. Also all Markdown inside the preformatted section is ignored.
• Image: inserts an image.
• Arbital extension: a menu for Arbital-specific Markdown extensions.
• Numbered list: inserts a numbered list.

1. Numbered list.

• Bullet list: inserts a bullet list. (Like the one you are reading right now.)
• Heading: inserts a header.

Header example

• Line: inserts a horizontal line.

• Undo: undoes the last action.
• Redo: undoes the undo.

Depending on your screen size, some of the buttons might be hidden.