How to Batch Rename Files on Windows and Mac

Renaming files one at a time is fine for two or three. For fifty screenshots, a folder of invoices, or a batch of photos, you want to rename them all in one pass. Every modern operating system can do this, and one free Windows add-on takes it much further. Here is how, plus an honest note on when renaming is even worth the effort.

Batch Rename on Windows

File Explorer (the quick way)

For simple sequential naming, you do not need any software:

1. Select all the files you want to rename in File Explorer.
2. Press F2, or right-click and choose Rename.
3. Type the base name, for example Vacation, and press Enter.

Windows names them Vacation (1), Vacation (2), and so on. Made a mistake? Press Ctrl+Z right away to undo. This is quick, but it only does numbered names.

PowerToys PowerRename (the power tool)

For anything more than that, Microsoft's free PowerToys includes PowerRename, a proper bulk renamer. After you install PowerToys, select files in File Explorer, right-click, and choose Rename with PowerRename. It gives you:

• Search and replace on part of a filename, with a live preview before you commit
• Sequential numbering with padding and custom start values
• Text formatting such as lowercase, uppercase, or title case
• Date and photo metadata patterns, so you can prepend a shoot date to every image
• Regular expressions for advanced patterns, and an undo after the rename

The preview pane is the reason to use it: you see exactly what every file will become before anything changes. For scripting or automation, PowerShell's Rename-Item can do the same from the command line.

Batch Rename on Mac

macOS has a capable batch renamer built into Finder, no downloads required:

1. Select the files in Finder.
2. Right-click and choose Rename (it shows the number of items, like "Rename 24 Items").
3. Pick a mode from the menu:
   • Replace Text: swap one piece of text in the names for another.
   • Add Text: add a prefix or suffix to every name.
   • Format: apply a new name plus a sequential number or a date.

Finder previews the change and applies it instantly. Press Command+Z right after to undo if needed.

Naming Tips That Actually Help

If you are going to rename in bulk, make the new names do some work:

• Put the date first, as YYYY-MM-DD. Files then sort in chronological order automatically.
• Be consistent. Pick one format per folder, like 2026-08-10_client_invoice, and stick to it.
• Avoid spaces and special characters if the files will travel between systems or the web.

When Renaming Is Not Worth It

Here is the honest part: people rename files mostly so they can find them again. That made sense when search only matched filenames. It matters less now. If you can find a document by describing what it contains, the filename becomes far less important.

That is the idea behind Filect. It reads the content inside your files and lets you find them by meaning, so "the invoice from the electrician" pulls up the right file even if it is still named scan_0047.pdf. Renaming is still useful for sorting and sharing, but you no longer have to rename everything just to make it findable. For more on this, see how to find a file without knowing its name.

Batch Rename Options Compared

The Bottom Line

For quick numbered names, File Explorer on Windows and Finder on Mac already do the job. When you need search and replace, patterns, or a safety-net preview, install PowerToys and use PowerRename. And remember why you are renaming at all: if it is only to find files later, a content-aware search tool means you can spend a lot less time on filenames and still find everything.

FAQ