Free tools

Small tools for Mac users

They run in your browser, and nothing you test leaves your computer.

Scroll direction test: is your Mac trackpad or mouse natural?See whether your trackpad and mouse scroll natural or standard.
Clipboard inspector: see everything you copiedPaste once and see every format a copy carries: text, HTML, RTF, images, files.
Mac keyboard shortcut tester: is that shortcut already taken?Press a shortcut to see it in Mac symbols and whether macOS already uses it.
Mouse scroll test: check smoothness and polling rateSee each wheel step, your scroll speed and smoothness, plus your mouse's polling rate.
Monitor setup visualiser: see your screens to scaleDraw your MacBook and monitors side by side at real size before you buy.

Step-by-step fixes are in the guides, and the apps fix what these tools turn up.