Preview Before You Commit
See original names and proposed new names side by side before anything changes, so you can catch mistakes early.
macOS Utility
Rename a whole folder of files in a few seconds.
Simple Renamer makes batch renaming feel lightweight instead of tedious. Drop in a folder, choose a base name, preview the results, and rename files or folders with a clean Mac-native flow.
Batch Rename
Files
Folders
Templates
Undo
Drag & Drop
Preview
macOS
What It Does Well
Simple Renamer focuses on the common rename jobs you actually do: photo folders, cleaned-up exports, numbered assets, and folder sets that need consistent names.
Templates That Save Time
Keep a library of base names, import and export them, and quickly reuse the naming patterns you already rely on.
Undo When You Need It
If a rename pass was not quite right, undo the last batch without manually reconstructing names.
Rename folders directly, or process files inside subfolders when you want to normalize sets without flattening the structure first.
Photo exports, scans, project assets, downloads, and archival cleanup all benefit from a fast rename tool that stays out of the way.
See the App
The interface stays straightforward: templates on the left, your current batch in the center, and a clear preview of exactly what will happen.
Typical Workflow
1. Open or Drop a Folder
Select a folder of files, or drag files directly into the app to start a batch.
2. Enter a Base Name
Type a base name, choose a saved template, or use the next-number helper to continue an existing sequence.
3. Review the Preview
Check the proposed file names before processing so you know exactly what the batch will do.
4. Process or Shuffle
Run a normal ordered rename, or use the shuffled option when you want randomized numbering.
Private by default
Simple Renamer works locally on your Mac. No accounts, no online sync, and no cloud workflow required for the core app experience.