FastRename
Rename hundreds of files in seconds.
About
FastRename renames hundreds of files in seconds. Build a rule once — find & replace, numbering, case, dates — preview every change live, then apply it all in a single pass.
Screenshots
Features
Batch rename with live preview
Find & replace (with regex) and sequential numbering
Case, spaces and date formatting
Conflict detection and one-click undo
Native macOS, five languages
Frequently asked questions
What is FastRename?
FastRename is a macOS app for renaming lots of files at once, with a live preview so you see exactly how the new names will look before you commit.
How does the live preview help?
As you build your renaming rules, FastRename shows the resulting names instantly, so you can catch mistakes before anything is actually changed.
Can I rename many files at once?
Yes, that's the whole point! FastRename handles batch renaming so you can process large sets of files in one go.
Will it mess up my files if I make a mistake?
The live preview lets you verify every new name before applying, so you stay in control and avoid surprises.
Is it free to try?
Yes, FastRename is free for a 7-day trial, then available with monthly, quarterly, annual, or lifetime licenses.
Does my data stay private?
Yes, FastRename works entirely on your Mac and processes your files locally, with no cloud involved.