Dev tools · alternatives · 2026

24 alternatives to Kaleidoscope 4

Spot the differences, merge in seconds

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Kaleidoscope 4 launched in 2023; newer entries below may have overtaken it.

1. 1
   Kaleidoscope 5.0▲143

   The leading diff and merge app for Mac developers

   2024 · kaleidoscope.app · its alternatives →

2. 2
   Kaleidoscope 3▲135

   Spot the differences, merge in seconds

   2021 · kaleidoscope.app · its alternatives →

3. 3
   Kaleidoscope▲116

   Hands down the best file comparison and merge tool for Mac

   2014 · kaleidoscope.app · its alternatives →

4. 4
   Kaleidoscope for iOS▲8

   Spot the differences, merge in seconds. Now for iOS 11 iPad.

   2017 · apps.apple.com · its alternatives →

5. 5
   Diffchecker 2.0▲153

   Check the differences between two text files, images or PDFs

   2020 · diffchecker.com · its alternatives →

6. 6
   QuickLens▲81

   Inspect the UI of apps, illustrations & websites like a PRO!

   2021 · its alternatives →

7. 7
   Gemini 2.0▲301

   The intelligent duplicate file finder for your Mac

   2016 · macpaw.com · its alternatives →

8. 8
   Diffchecker▲147

   Compare text differences between two text files

   2015 · diffchecker.com · its alternatives →

9. 9
   Glance▲157

   All-in-one Quick Look plugin for macOS

   2020 · github.com · its alternatives →

10. 10
    Diff Text▲216

    Dead simple text comparison

    2024 · difftext.com · its alternatives →

11. 11
    Duplicates Monitor by Gemini 2▲149

    Keep your Mac duplicate-free at all times

    2021 · macpaw.com · its alternatives →

12. 12
    Text Compare▲69

    Instantly see the difference between two pieces of text

    2021 · its alternatives →

13. 13
    Text Compare & Merge▲10

    Online Difference Finder & Merger | Free Tool

    2024 · diffsuite.com · its alternatives →

14. 14
    No Compare▲2

    A file and folder comparison/merge tool

    2020 · apps.microsoft.com · its alternatives →

15. 15
    Compare to Dev▲117

    Image comparison tool

    2021 · its alternatives →

16. 16
    TrackChanges▲110

    Share what you've changed

    2017 · chromewebstore.google.com · its alternatives →

17. 17
    Peek - The Ultimate Quick Look Extension▲75

    Text copying, scroll restoration, syntax highlighting & more

    2021 · apps.apple.com · its alternatives →

18. 18
    Video Compare▲85

    A mac app to compare multiple videos side by side

    2017 · apps.apple.com · its alternatives →

19. 19
    Tidy▲98

    Spotlight returns nothing for words you know are in a scanned document. It is not a bug: a scan has no text layer, so there is nothing to index. How to check, and three ways to make those documents searchable on a Mac.

    Jul 2026 · tidymacapp.com · its alternatives →

20. 20
    Kaleidoscope 2.4▲135

    World’s most powerful file comparison app

    2021 · kaleidoscope.app · its alternatives →

21. 21
    JuxtaCode▲98

    Git diffs & merges, but nicer

    2024 · juxtacode.app · its alternatives →

22. 22
    PDF Differ▲66

    PDF comparison tool for creatives

    2023 · its alternatives →

23. 23
    DropK▲95

    The tray that doesn't pretend

    Jun 2026 · apps.apple.com · its alternatives →

24. 24
    Beyond Compare▲5

    Tool to compare, sync, and merge files and folders

    2016 · scootersoftware.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →