INSTALL GRADEROUTE
Your next show starts here.
The extension is free to install. Use the same Google account on the website and in the extension.
Your supported download
Version 0.2.1 · Packaged 2026-10-09
Download extension ZIPChrome Web Store distribution is not available yet. This release installs manually and requires manual updates.
On a phone or tablet? Return to this page on a desktop computer to install the Chrome extension.
Install the ZIP in Chrome
Download and unzip
Extract the ZIP into a folder you can keep. Chrome loads the extracted folder, not the ZIP.
Open Extensions
Type
chrome://extensionsin the address bar and turn on Developer mode.ExtensionsDeveloper mode ONLoad the folder
Choose Load unpacked, then select the folder containing
manifest.json. The installed package currently appears as GradeRoute.Choose extracted extension folderSign in and start
Open a supported Whatnot show, open the panel, and sign in with Google. Choose Start when you’re ready. Installation and sign-in do not spend a credit.
Update your extension
Stop your active capture, download and extract the new release, then replace the files in the installed folder. On chrome://extensions, click the extension’s Reload button and refresh the Whatnot page. Check the installed version. Keep the folder in place.
Permissions, in plain language
Google identity links your account. Local storage saves preferences and sign-in state. Offscreen processing supports the stream reader. Access to Whatnot and GradeRoute’s services allows supported stream capture, identification, and account checks. The extension does not place bids or purchases for you.
Release notes
This production package includes the shared stream reader, guarded raw-card candidates, slab identification, and tier-controlled comparison tools. Coverage and identification accuracy vary; uncertain raw candidates have no automatic price.
Verify your download
SHA-256
7beda8da9691e62a377519a74ff857a00d6242b51c7d253b571bc2fda395b4e7