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Install the ZIP on Chrome

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Chrome can load the extracted package in developer mode. It remains available across restarts while the folder is kept in place and the extension is not removed from chrome://extensions.

Download and extract

1. Open Releases and select the latest version.
2. Under Assets, download yt-looper-chrome-vX.Y.Z.zip.
3. Extract it. manifest.json must be at the root of the resulting folder.
4. Optionally verify its hash using SHA256SUMS.

If no release is listed yet, the project has not published its first public package.

Load in Chrome

1. Enter chrome://extensions in the address bar.
2. Enable Developer mode in the top-right corner.
3. Click Load unpacked.
4. Select the folder containing manifest.json, not the ZIP or a parent folder.
5. Open the extensions puzzle menu and pin YT Looper to the toolbar.
6. Open a regular YouTube video. Reload once if the tab was already open during installation.

To update manually, replace the folder contents with a new release and click YT Looper's reload icon on chrome://extensions.

Verify the download

macOS or Linux:

shasum -a 256 yt-looper-chrome-vX.Y.Z.zip

Windows PowerShell:

Get-FileHash .\yt-looper-chrome-vX.Y.Z.zip -Algorithm SHA256

Compare the result with the matching line in SHA256SUMS.

Official reference

Google documents local loading in Load an unpacked extension.

If Chrome reports a manifest error, confirm that the Chrome ZIP was used and see Troubleshooting and privacy.