DiffMate ‑ Asset Compare Tool

Every review carries the store that wrote it and how big that store is, and 1 of them are complaints you can read in full.

• 2★2025-12-12

  It does let you get an overview of what files have changed, but the diffing algorithm is very poor. If a block of code changes from multi-line to single line, it throws off the diff for the rest of the file. See what algorithm VS Code uses, and use that; they have excellent blog posts on diffing. I ended up exporting the themes and comparing in VS Code using the "Compare Folders" extension. I also cannot find a way to undo individual changes to files. If I accidentally merge a change to the wrong side, or merge the wrong change, I have to discard all changes and start again.

  Wired4Signs USA · top 100k store

  Link to this reviewVerify at sourcewww.wired4signsusa.com

• 5★2025-06-26

  Excellent app that will save you loads of time, and its FREE so win win. Very easy to install and use A++++++

  Grove Sales Ltd · outside the top 100k

  Link to this reviewVerify at sourcegrovesales.co.uk

• 5★2025-04-29

  Eine der Apps die jeder Shopify Entwickler installiert haben sollte.

  Primedeco · outside the top 100k

  Link to this reviewVerify at sourcewww.primedeco.de

• 5★2025-03-25

  Truly such a helpful and amazing tool! Makes theme updates a breeze and works perfectly. Kudos to the developers for releasing such an awesome tool for free.

  Papa & Barkley · outside the top 100k

  Link to this reviewVerify at sourcewww.papaandbarkleycbd.com

• 5★2025-02-19

  It works as intended

  SARL Soliade · unranked store

  Link to this reviewVerify at source

• 5★2025-02-12

  Absolutely fantastic tool. Had been fiddling with various plugins and had been fiddling around with layout and css, meaning I broke the layout when I uninstalled them. After a couple of hours looking for the changes, I downloaded this tool, and found the culprit instantly!

  My Store · unranked store

  Link to this reviewVerify at source

• 5★2025-02-10

  Game changer! This tool saves me so much time when upgrading themes. Shopify theme upgrades are a nightmare and this tool makes it so much easier and ensures I don't miss anything. Its very basic, but hey, its free... so no complaints. I particularly like the new feature that can create any additional missing codes files not contained in the original theme by just copying left to right. Freak'in awesome app thank you!!

  Long Reef Surf Co · outside the top 100k

  Link to this reviewVerify at sourcelongreefsurf.com.au

• 5★2025-02-06

  Great App, easy to use and much needed!

  Senkels · outside the top 100k

  Link to this reviewVerify at sourcesenkels.at

• 5★2025-01-13

  It's exactly what I've been looking for to track down the changes that were made in the theme code. This should be included as a standard feature as part of Shopify, IMHO. Thank you for providing this useful tool to us!

  Revendo · top 100k store

  Link to this reviewVerify at sourcerevendo.ch

• 5★2024-12-18

  This is a mind-bogglingly awesome tool for anyone who customizes their themes. The fact that Shopify codes their themes so that customizations break automatic upgrading is idiotic. They should use a parent/child system like WordPress. This app functions like any other diff tool, but it's built right into your Shopify admin like it was coded there by default (and should be). No need to download theme files and find differences, this tool does it all right in the Shopify admin, and will even open files in the Shopify online code editor if need be. Cannot thank the developers enough for this tool. Upgrading my theme was a major pain in the neck because of some slight theme edits. This tool has made that process immensely easier. Please add a tip jar to the app!

  Monsterologist · outside the top 100k

  Link to this reviewVerify at sourcemonsterologist.com

Read all 18 with sources – and filter them to the complaints, the recent ones, or the stores big enough to matter.

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