Microsoft's PowerToys suite is home to many useful tools, and my favorites are usually the ones that help me organize my apps and windows, like FancyZones and Workspaces. However, there's quite a bit more in there for all kinds of users, and one of the more interesting ones is PowerRename.

As you can probably guess, PowerRename is a tool to help you rename files in predictable and systematic ways, and it's pretty great. If you're not using it yet, here's why you might want to.

More than a simple rename

Word matches and RegEx offer many possibilities

Windows makes it relatively easy to rename files in bulk already. You can select multiple files and choose Rename to change them all in one go, and they'll be numbered sequentially, too. However, you don't have a lot of control over how these changes are processed. All you can do is fully rename the files, and they'll always be numbered sequentially and in parentheses.

PowerRename has a lot more options for how to rename your files based on character/word matches and regular expressions (RegEx). By default, you can simply type in the portion of text you want to replace in the file names, and then type in the replacement text you want in the next box.

But there's a bit more to it than that, because you can also use RegEx to more easily change parts of the name. Say, for example, you want to do something at the end of the file name. With RegEx enabled, you can insert $ in the matching field to match the end of the string, and then whatever you type in the Replace with box will be appended to the end of the file name. Similarly, you can use ˆ to match the beginning of the file name, so you can add a prefix to it, too.

There are tons of other regular expressions you can use to make renaming easier. As an example, Windows screenshots taken with the Snipping Tool are saved with the word "Screenshot" at the beginning, followed by the date and time at which the screenshot was captured. But if you want to make a specific set of screenshots more identifiable, you can use \w+ to match the entire first word in the file name, making it so you can more easily rename the files while keeping the date and time on them. You can also use the Match all occurrences checkbox to make it so that every occurrence of what you typed is replaced by the text in the Replace with box.

You can also add variables on the output side of things. Say you want to add the date and time to the file name, you can use the expression $YYYY-$MM-$DD in the Replace with box to make sure the date is added in the right format. There are similar variables for hours, minutes, and seconds, too. This way, your renaming doesn't have to just be sequential numbers (though this is also an option).

Preview your name changes

It helps

While Windows does let you rename files easily, it doesn't make it all that easy to preview what the outcome will be. After you select multiple files and choose Rename, only one of the files' names will change as you type, and the change will be applied to all the files in one go when you press Enter.

With PowerRename, for every change you want to make to the file names, you can verify what files will be renamed and what their new names will look like. If the conditions you specified don't apply to every file, then you'll see that only the applicable files will be renamed. You can see exactly what each file is going to look like before committing to any changes, which is great.

Sequential operations

It could be easier, but it works

One thing that would be nice to see in PowerRename is the ability to apply multiple rename operations in one go, so your files look exactly how you want them to more quickly. Unfortunately, this doesn't work, but thankfully, PowerRename doesn't dismiss your files once you perform an operation.

As an example, say you want to rename a series of screenshots taken by pressing Windows + Print Screen on your keyboard. These screenshots are all saved with the title Screenshot followed by a sequential number in parentheses. You can use PowerRename to change Screenshot to PowerRename, for example, apply those change, and then use a regular expression to match the number in parentheses (the expression \d+ will match any number) and replace that with the $YYYY-$MM-$DD format to add the date. You can also use standard text matching to remove the parentheses from the filename to clean it up a bit.

It would be nice if you could run multiple operations in one go, but at least you don't have to constantly restart the renaming process and wonder what the files will look like after each part of the process.

Make files easier to find

As we flood our PCs with more and more files, we also tend to get lazy when it comes to naming them, which can make it a pain to find what you're looking for later down the line. A tool like PowerRename can make it a lot easier to rename multiple files in one go using a standard format so you can more easily locate those files later. It's not something everyone will need, but if organization is important to you, then this tool is extremely useful.