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Change Filename Case

Make selected file and folder names consistent from Finder. Choose a familiar capitalization style or a developer-friendly naming convention, while keeping each file’s final extension unchanged.

  • Access: Free
  • Finder availability: Files & folders

See the Change Filename Case overview and screenshots on the MenuSmith website.

Add and configure

  1. Open Action Library and find Change Filename Case.
  2. Choose a starter configuration and add it to My Finder Menu.
  3. Select the new Menu Action and review its settings and availability rules in the Inspector.
  4. Run it from a matching Finder context.

Settings

  • Change case to
  • Confirm Bulk Rename
  • Threshold

Starter configurations

  • Change to Title Case
  • Change to lowercase
  • Change to UPPERCASE
  • Change to Sentence case
  • Change to camelCase
  • Change to PascalCase
  • Change to snake_case
  • Change to kebab-case

Starter configurations set initial values only. Adding one does not permanently link the Menu Action to that starter.

What it can do

  • Rename one item or a selection of files and folders
  • Choose from eight capitalization and word styles
  • Preserve the exact final extension of files
  • Ask for confirmation before larger rename operations

Typical workflow

  1. Add the naming-style starter you want
  2. Review Change case to and the bulk confirmation settings in the Inspector
  3. Select files or folders in Finder and run the Action
  4. Confirm when the number of items exceeds your configured threshold

Important details

  • This Action renames the original items and requires Authorized Folder access to their parent folders.
  • Confirm Bulk Rename is enabled by default and asks when more than 10 items are selected; you can change or disable the threshold.
  • Conflicting names are skipped rather than overwriting existing items.
  • Only each file’s final extension is preserved; folder names are converted in full. This is not a search-and-replace or numbering tool.

If MenuSmith asks for access, review Authorized Folders. If the Action does not appear, check Finder Integration and the Menu Action's availability rules.