Theme Upgrade Buddy

Compare theme versions and review changes before upgrading.

by HASAN ARMSTRONG LLC · Launched: January 2026 · Free plan available.

0.0 on Shopify Built for Shopify

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Works with ANY theme. See exactly what changed between versions before you upgrade safely.

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About Theme Upgrade Buddy

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 Show more Show less

Last verified: July 20, 2026 · Fresh