OneTap Checkout

OneTap Checkout is an AI-powered Chrome extension that fills checkout forms in one tap across any site, entering addresses, payment cards, and contact details automatically. Its form detection reads any form — including custom field labels and multi-step checkouts — and fills every field correctly, without needing site-specific integrations. Security is handled locally: everything you save is encrypted with AES-256 before it touches disk, and the company states card numbers never reach its servers, keeping data stored on your own device. You can keep multiple profiles (for example personal, work, and family) with distinct information and switch between them at checkout. OneTap is best for frequent online shoppers who are tired of re-typing the same details and want to cut cart abandonment caused by form friction. It is free to start, and the makers say fast checkout filling will always remain free, though some power features may become paid later. Because it is a browser extension focused on autofill, it works only where the extension is installed and does not process payments itself.

Best for frequent online shoppers who want one-tap checkout autofill across any store without re-typing card and address details.