MassReplaceIt allows you to easily make changes across many files at once. Remove unwanted text from filenames, replace text throughout a website, number your files, and more.

Key features include:

• Search file contents or filenames
• Preview changes
• Ability to confirm changes at file or change level
• Save search configurations for later reuse
• Exclude files based on filter criteria
• Regular expression support
• Undo changes made in recent searches