Otto

by Mykola Bielousov · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 20 Oct 2026

Otto — your browser, on autopilot. An AI side-panel assistant that reads pages, clicks, and types for you. Your key, no server.

Users

+1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#230K

#193K among extensions

Version

0.2.3

updated 26 Jul 2026

Users

monthly, 3 months

Latest, 20 Oct 2026: 7 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 months

Latest, 20 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Otto

Otto is a side-panel assistant that operates your real, logged-in browser on your instruction. Ask it to do something "summarize this page", "open my analytics and tell me how traffic is", or "find the cheapest option across my open tabs". It navigates, reads pages, clicks, types, and takes screenshots on its own, then reports back in chat. You can stop it at any moment. Chrome shows a visible banner whenever Otto controls a tab. Bring your own AI: Otto connects directly from your browser to the AI provider you choose using your own API key. There is no Otto server, account, subscription, analytics, or data collection by the developer. Your key is stored only in Chrome's local extension storage and sent only to the provider you picked. Note: Otto requires an API key from a supported AI provider (pay-per-token; some providers have free tiers). A consumer chatbot subscription does not include API access. The full list of supported providers is in the README on GitHub. Otto is fully open source: https://github.com/legisus/otto-ai-sidebar