Stackpeek — Shopify theme & app detector

An MV3 side-panel browser extension that detects, on any Shopify storefront in your active tab, its theme, its installed apps, and its tracking pixels — and exports the store's public product catalogue to CSV.

MIT licensed. Full source: https://github.com/tonic20/stackpeek-extension Project home: https://stackpeek.app

Downloads

File	What it is
stackpeek-<version>-chrome.zip	Unpacked-loadable Chrome / Edge / Chromium build (MV3)
stackpeek-<version>-firefox.zip	Firefox build (MV3, sidebar_action panel)
stackpeek-<version>-sources.zip	Buildable source tree for the same release
SHA256SUMS.txt	Checksums for the three archives above

Most people should install from the Chrome Web Store, which handles updates automatically: https://chromewebstore.google.com/detail/shopify-theme-detector-ap/membonhdocoehieifbkfkdjmpappflan

The archives here are for people who would rather load the extension unpacked, verify it, or build it themselves.

Verifying a download

shasum -a 256 -c SHA256SUMS.txt

Installing the Chrome build unpacked

1. Unzip stackpeek-<version>-chrome.zip.
2. Open chrome://extensions, turn on Developer mode.
3. Load unpacked, and pick the unzipped folder.

Building from source

Requires Node 24. The archive's own README.md names the exact Node version and the hashes a byte-identical build produces.

unzip stackpeek-<version>-sources.zip -d stackpeek-<version>-sources
cd stackpeek-<version>-sources
npm ci
npm run zip:release            # Chrome
npm run zip:release:firefox    # Firefox

The builds land in .output/. The test suite is not in this archive; run it from the GitHub repository.

What it sends

The page's origin only — scheme, host and port — plus the detection signals found on the page and a random per-install identifier. Path, query string and fragment never leave the browser, and the server drops the install ID before recording anything about a store, so no browsing list can be assembled on either side. Privacy policy: https://stackpeek.app/privacy