BrowserOS vs Maxthon
BrowserOS
browseros.com
Maxthon
maxthon.comSide by side
| Figure | BrowserOS | Maxthon |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 3 | 1 |
| Spec score · Web browsers | 8.9 (#16) | 9.0 (#12) |
| Browser engine | chromium | chromium |
| Extensions | BrowserOS is a Chromium fork and supports Chrome extensions; users can also import Chrome bookmarks, passwords, and settings. | Maxthon 7 supports Chrome extensions, and its desktop versions can sync extensions between Windows and macOS. |
| Extension support | chrome_store | both |
| Free plan | Yes | Yes |
| Headquarters | Redwood City, California, United States | San Francisco, California, USA |
| Supported platforms | desktop | The download page offers versions for Windows, macOS, iOS, and Android, including Windows desktop and portable builds. |
| Support | The maker directs users to Discord for help and feedback and GitHub to contribute. | The site directs users to its help center, troubleshooting and bug-report page, community forum, and customer service contact information for support. |
Plans
In their own words
BrowserOS
BrowserOS is an open-source Chromium-based browser with AI agents for carrying out web tasks from natural-language directions. The agents can navigate, click, type, fill forms, extract data, and run workflows across multiple steps. Chat Mode answers questions about the page in view; visual Graph Mode for repeatable workflows is marked as coming soon. BrowserOS supports Gemini, Claude, OpenAI, and local models through Ollama or LM Studio. Its maker lists more than 40 MCP app integrations, including Gmail, Slack, Notion, and Calendar, as well as 53 built-in browser tools. An included MCP server connects with Claude Code, Gemini CLI, or Codex. As a Chromium fork, it supports Chrome extensions and import of Chrome bookmarks, passwords, and settings. Browsing data stays on-device unless cloud syncing is enabled; syncing is off by default, and synced activity is encrypted on BrowserOS servers. BrowserOS says it does not store or log AI prompts or responses, though providers may handle submitted data under their own policies. It is free and licensed under AGPL-3.0.
Maxthon
Maxthon is a free Chromium-based browser with built-in notes, password management and an AI chat assistant. Signing in syncs bookmarks, settings, Maxnote, password-manager data and quick-access URLs across devices. Maxnote can record, organize, clip and share URLs, text, images and links. Maxthon 7 supports Chrome extensions, and its desktop versions can sync extensions between Windows and macOS. Reading mode removes ads and other page elements, Read Aloud converts webpages to speech, and split-screen browsing shows multiple pages in one window. Listed privacy tools include ad blocking, anti-tracking, incognito mode and a free VPN provided by Bright Data. Maxthon's privacy policy says searches through its default MaxAsk engine, which uses Google as its search content provider, involve collecting search queries, IP addresses and browser details. Maxthon says it encrypts account information and sensitive data stored locally or in the cloud, as well as data during account synchronization. Super Bookmarks requires a VIP subscription, and video downloads are limited for logged-in users.