How to hide the Claude sidebar, or just the parts you don't use

On claude.ai, the sidebar button at the top left opens and closes the sidebar. Claude's help center says it isn't currently possible to disable the sidebar completely, and there's no setting to remove individual links or buttons from it.

A userstyle (for example with Stylus) or a content blocker's element picker can hide page elements, but you have to find the right element yourself, and the rule can quietly break when claude.ai changes.

ChatTheme turns what you picked into a tweak and checks that the page still works, so you never write any CSS.

Describe it in the Create tab instead: "hide the Projects link", "hide the upgrade banner", "make the sidebar narrower". If the AI isn't sure which part you mean, it asks you to point at it.

Some parts can never be hidden: the message box, the send button, open menus, and the last way to open the sidebar. If a tweak would hide one of them, ChatTheme switches that tweak off on its own and tells you in the side panel.

Every tweak is listed under Customize › Site tweaks with a remove button. Alt+Shift+T switches all of ChatTheme off at once, tweaks included; press it again to bring everything back.

To find the part you mean, ChatTheme sends the names of the page's buttons, links and labels along with your request. It never sends your conversation titles, your messages, what you're typing, or your name or email. Tweaks stay yours: themes you share or install from the community never carry them.