uazapi/whatsapp-web-session-importer

This is a Chrome and Edge browser extension that moves an already connected WhatsApp Web session into an authorized business API instance. It is meant for people who run a WhatsApp automation platform and need to migrate a customer's existing WhatsApp Web login into that platform without asking them to scan a new QR code from scratch. To use it you need the extension installed, the name of your API subscription instance, its access token, and access to the WhatsApp account you want connected. After installing the extension from the Chrome Web Store, or manually by loading the unpacked folder in developer mode, you open WhatsApp Web as usual and let it fully load your conversations. The extension can then be triggered by opening a special WhatsApp Web link that includes your instance name and token as URL parameters, which automatically opens its migration panel. Once the panel is open, you confirm the instance name and token are correct and click a migrate button. Behind the scenes the extension verifies the instance against the authorized API, captures the currently connected WhatsApp Web session, waits until that session is fully ready, sends it to the API along with recent chat history as a reference point, clears the local browser session, and starts the instance's connection automatically. During this process the WhatsApp Web tab may reload or appear to log out, which is expected. After migration finishes, the instance should show as connected on the platform's dashboard, while the original WhatsApp Web browser session becomes disconnected since its session has moved to the instance. The extension explicitly does not create a new WhatsApp account, and it cannot connect an instance on its own if WhatsApp Web has not already been authenticated by scanning a QR code first. It is not meant to be used on public or shared computers, and the README warns not to share your instance token with anyone. A settings panel lets you control whether the panel opens automatically, choose a light, dark, or WhatsApp-matching theme, and decide whether message history is included in the migration. Developer documentation covering integration details and available endpoints is included in the repository for teams building on top of this extension. The full README is longer than what was shown.