Does Ctrl+Z in Notepad only undo one step?

In the classic Windows Notepad that shipped for decades, yes, it held only a single level of undo. The modern version rebuilt into Windows 11 supports multiple undo steps, the same way most other text editors and this site's own tools do, so the old single-step limitation is no longer something to plan around on a current system.

What does F5 do in desktop Notepad?

It inserts the current date and time at the cursor, a feature that has been in Notepad since early Windows versions, aimed at anyone using it as a running log or diary. It is one of the more genuinely useful shortcuts in the app and also one of the least discovered, since nothing in the interface hints that it exists.

Do these shortcuts work in a browser-based text editor?

The ones handled by the operating system and the browser's own text field, undo, select all, cut, copy, paste, jumping by word or to the start and end of a line, all work the same way in any text area, including the ones on this site. Shortcuts specific to desktop Notepad's own interface, like F5, only exist in that application.

Is there a shortcut to find and replace text?

Ctrl+H opens Find and Replace in desktop Notepad and in many other editors that follow the same convention. Ctrl+F alone opens Find only, without the replace field.

Notepad Keyboard Shortcuts Worth Learning

Copy, paste, undo, save. Most people stop there. A few more shortcuts do a genuinely useful job and go almost entirely undiscovered.

The four everyone already knows

Ctrl+C, Ctrl+V and Ctrl+X copy, paste and cut. Ctrl+S saves. These are not specific to Notepad; they are the standard Windows text-editing shortcuts and work in essentially every text field on the system, including a browser's address bar and every field on this site.

The ones that quietly save the most time

Ctrl+Z undoes the last change, and Ctrl+Y redoes it if you went one step too far.
Ctrl+A selects the entire document at once, faster than a click-drag for anything longer than a paragraph.
Ctrl+Home and Ctrl+End jump to the very start or end of the whole document, not just the current line.
Ctrl+Left and Ctrl+Right move the cursor one whole word at a time instead of one character.
Ctrl+Backspace deletes the entire previous word in one keystroke, rather than backspacing through it character by character.
Ctrl+F opens Find. On this site's own notepad and text editor, it opens the built-in find panel rather than the browser's own search bar.

The one almost nobody discovers

F5, in the classic desktop version of Notepad, inserts the current date and time at the cursor. It has been part of the app for a very long time, aimed specifically at anyone using Notepad to keep a running log: press F5 at the top of each entry and the timestamp writes itself. Nothing in Notepad's interface points to it, which is most of why it stays one of the least-known shortcuts in an application everyone assumes they already know completely. The WordPad replacement on this site offers the same date-and-time insert as a toolbar button, for the same running-log use case, without needing to remember a function key.

A limitation worth knowing about

Classic Windows Notepad held only a single level of undo for most of its history: press Ctrl+Z once and the last change reverts, but a second press does nothing further. It was a real, often-frustrating limitation, and the modern Notepad rebuilt for Windows 11 finally added proper multi-step undo, matching what most other editors, including a browser-based one, have done for years. If you are on an older Windows version and Ctrl+Z only seems to go back one step, that is not a bug; it is the original, long-standing behaviour.

Where these apply beyond Notepad itself

Every shortcut on this page except F5 is a general Windows text-editing convention, not something unique to Notepad, so it works the same way in a browser's address bar, a search box, or the plain text editor on this site. Learning them once pays off in every text field you ever type into, not just one specific application.