TextDiffer 4+

Christina Holly

    • 2.6 • 5 Ratings
    • $8.99



TextDiffer is an elegant and simple app for comparing text and sharing diffs. TextDiffer is great for analyzing, teaching, and sharing.

Use it for more than just code, including copywriting and comparing legal documents.

Choose between a light and dark UI theme, and from an array of code syntax highlighting themes.

Customize your text, including font family, font size, and more.


• Code diffing – see which lines of code have changed in a unified diff format
• JSON diffing – compare JSON without considering the reordering of properties as a diff
• Comparing word documents – compare word documents like stories or legal contracts so you can track important changes.
• Working faster – You and your team can quickly glance at what's changed instead of re-reading everything.
• Share diffs – share diffs as patches, rich text, and Markdown in email and chat apps that support it
• Teaching – show your students the code changes you’ve made so they can understand better by seeing incremental changes

What’s New

Version 1.0.1

• Markdown formatting improvements to support multi-line documents better
• Fixed an error dialog regarding the touch bar

Ratings and Reviews

2.6 out of 5
5 Ratings

5 Ratings

Oscar Gong ,


Don't buy.

Developer Response ,

Hello Oscar, I would love some feedback about what you didn't like to see how we can improve the app. Did you encounter a bug? Please feel free to reach out to info@tinaciousdesign.com for support and suggestions. Thanks!

DVD43 ,

Attractive App, Works Nicely

A few suggestions for the developer:

First, I see that there is a discrepancy in the software version number. The Mac App Store states that the latest version is 1.0.1, but the software itself states that it is version 0.1.1. Which is correct?

Second, there is a means of adjusting the font size, but it only applies to the difference section of the UI. The input texts remain at a small size. If one needs to enlarge the type in one place, it would stand to reason that the same need would apply to the others.

Third, the dark mode is a good addition. However, the red and green highlights in the differences area are very faint in dark mode, forcing one to rely on other, much less evident indications to spot and interpret the differences.

Fourth, two outputs are offered. The description states that these are Rich Text (presumably RTF?) and Markdown. Both of these are useful. However, the Rich Text output turns out to be HTML. And the Markdown output is actually CriticMarkup, a change tracking method developed for use as an adjunct to Multimarkdown. This discrepancy between the description and the actual functioning of the application could lead to user confusion.

Ed Proffer ,

Beautiful UI, but...

Beautiful UI, but glaring omisions. Doesn't support dragging two text files onto the icon to invoke a diff. Doesn't even have a File Open option in the menu. Is my only option to open two files in a different editor every time I want to see differences and then manually copy/paste theie contents into each of the two panes in this app? Seriously? That wastes my time. And I can find no other way in the UI to accomplish opening files. Then I have to scroll around to find your Perform Diff button. That's the sole purpose of your app and I have to press a button to make it do its thing? Why not automatic? Again more wasting of my time. I do regret my $9 purchase but I have faith that this will improve with time and I'd be delighted to change my review if even just the icon drag/drop feature was added. At the end of the day I just need a good and fast diffing utility.

App Privacy

The developer, Christina Holly, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.