MassReplaceIt for Mac

Used MassReplaceIt for Mac?

MassReplaceIt Analysis

AI Assisted Content · June 11, 2026

Not written by CNET Staff.

MassReplaceIt is a free utility for Mac designed to streamline the process of finding and replacing text across multiple files. This powerful tool is ideal for users who need to update large quantities of documents, code files, or any text-based content efficiently. With its intuitive interface, users can easily specify search parameters and replacement text, allowing for quick adjustments across entire directories or selected files.

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Trial version

The software supports a variety of file formats and enables users to preview changes before applying them, ensuring accuracy and preventing unwanted edits. MassReplaceIt also offers advanced options such as case sensitivity and whole word matching, enhancing its versatility. This application is particularly useful for developers, writers, and anyone managing extensive text files, making it a valuable addition to any Mac user's toolkit.

MassReplaceIt for Mac

Used MassReplaceIt for Mac?

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Full Specifications

GENERAL

Release: September 9, 2018

Latest update: June 11, 2026

Version: 3.0

OPERATING SYSTEMS

Platform: Mac

Operating System: Mac OS X

Additional Requirements

macOS High Sierra
macOS Sierra
OS X El Capitan
OS X Yosemite
OS X Mavericks
OS X Mountain Lion
OS X Lion

POPULARITY

Total Downloads: 1,455

Downloads Last Week: 0

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Last Updated

User Reviews

4/5

9 User Votes

Great app. Thanks ;)
51copperDecember 7, 2011
Pros
easy to use. straight to the point. no frills you don't need
Cons
none I can think of
Summary
If you want a nice little app to change things over a large file, this is it.
Exactly what I needed
PenguinMan98August 11, 2009
Pros
Simple clean mostly-intuitive interface. Showed you which files it was going to change and where in that file it would change.
Cons
After you set the initial parameters, the continue button is labeled 'replace' and even gives a popup asking you to confirm you want to replace the text. However the replacement isn't done here but later after it shows you the list of files.
Summary
Perfect little search and replace editor. Saved me hours of work.
Did exactly what I needed
staviaJune 25, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />MRI did exactly what I needed: change .JPG to .jpg in 3000+ among 8000+ files scattered at different levels through about 150 folders. Surprisingly, the first few batch-rename apps I downloaded were not capable of doing this, at least not really easily right out of the box. And this one is free! The only suggestion I'd make would be a progress bar or something. At least an indicator it's working. Just having the app be non-responsive made me think it had crashed.
Excellent, if you need it
JonJohnsonMay 10, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br /><p>This product works as advertised, and solves a good problem. I had to do a mass replace through several thousand source files in a volume that also contained a lot of other files that couldn't be touched. This tool made easy work of it.</p> <p>A few suggestions, however. Initially I thought the tool wouldn't work for me, as I am accustomed to having the options "RegEx", Match Whole Words, and Case Sensitive next to the Find and Replace fields. Although initially confusing, I did notice you could do it. on a different tab.</p> <p>I am curious whether the tab panel is needed. Since the tab panel is only maybe 300x300 pixels, that would total a 600x600 window, which is a reasonable sized window nowadays (although I'd shoot for 600x400-450).</p> <p>Keep up the excellent work. It's nice to know that there is a solution for this problem when I run across it.</p>
Incredibly useful and effective tool
icecreamtruckMarch 20, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />It does what it says it does, and it does it well. If you've got gobs of files that you need to rename, this is the tool for you. I haven't tried the contents-replacement or the regular expressions yet because I use BBEdit for that sort of thing, but if it's anything like the filename-changing, then I'm sure it will be great.
the best...
hellmachineOctober 29, 2005
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />his tool is definitely the best for the job. i renamed thousands of mp3's with no hassle in blinding speed. my customized search includes at least 15 different attributes and they got replaced in just one run. besides the quality of the product the developer is supernice. it just can't be better. if you regulary use it please consider a donation because this app should really stay free for all...
This Works Extremely Fast and Very Well, Indeed
Online Since 1987April 30, 2005
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Renaming several thousand files multiple times was never as easy as this. Bravo!
not good
tranceApril 22, 2005
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />well the 4 files that I ran this over to find and replace text in the files either did not open at all or were completely blank
Amazing
deckard97--2008April 22, 2005
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Performs really well, saves a whole lot of time. Mainly used to modify html / xml files.

Developer’s Description

By HexMonkey Software

Modify file contents or filenames across many files at once.

MassReplaceIt is a utility that performs a find and replace on the contents or filenames of multiple files at once. A search is simple to set up, yet provides powerful features such as a mask and saveable queries. Additionally, there are a number of options to control a search, such as case sensitive and whole words options and a choice of searching entire files or just the beginning or end.