When you upgrade your Shopify theme version, custom code and styles may differ between versions. This app compares your current theme with a new version and shows every difference. Works with ANY theme, not just specific vendors. Files are grouped by risk level so you know what needs attention first. Review changes in a side-by-side diff viewer, copy custom code with one click, and download a report. Make informed decisions before publishing.

• Compare any two theme versions and instantly see every difference between them
• Side-by-side code viewer highlights exactly what changed in each file
• Files sorted by risk level so you tackle critical changes first
• Download a full report to track progress and share with your team
• One-click copy lets you move custom code to your new theme quickly