Alternatives to BrowserOS
An open-source Chromium-based browser with built-in AI agents that can run on local models. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
BrowserOS
An open-source Chromium-based browser with built-in AI agents that can run on local models.
Replacements
Listings that take over the same core job as BrowserOS.
ChatGPT Atlas
OpenAI's Chromium-based web browser with ChatGPT and an agent mode built into every page.
ChatGPT Atlas keeps a Chromium base with an agent mode on every page, but it is closed source, macOS only, tied to ChatGPT and cannot use local models.
Perplexity Comet
Agentic browser with a built-in research assistant and task automation.
Perplexity Comet offers an assistant that acts on pages on Windows and macOS, but it is closed source, freemium and requires a Perplexity account instead of local models.
Dia
AI-first browser with a chat sidebar that works across your tabs.
Dia puts an AI chat sidebar across your open tabs, but it is closed source, macOS only, requires an account and sends page content to a remote service.
Fellou
A desktop web browser with a built-in AI agent that carries out multi-step tasks across websites.
Fellou runs multi-step agent tasks across websites with an editable action plan, but the browser is closed source and depends on online AI services rather than local models.
Opera Neon
Opera's agentic web browser that uses AI agents to research, manage tabs and act on web pages.
Opera Neon provides several agents and MCP connections on Windows and macOS, but it is a paid, closed-source browser whose agent features depend on online AI services.
Brave
A Chromium browser that blocks ads and trackers out of the box, with no extension to install first.
Brave stays open source and Chromium-based on Windows, macOS and Linux, adding default ad and tracker blocking and an AI assistant rather than agents built around local models.
Similar software
Related functionality, not a direct replacement.
Lightpanda
A headless browser written from scratch in Zig for web automation, crawling and AI agents.
Arc Search
Mobile browser with an AI Browse for Me mode that reads pages and summarizes them.
Chromium
The open-source browser project that Chrome, Edge, Brave, Opera and Vivaldi are all built from.
Maxthon
Long-running Chromium browser with built-in notes, passwords and AI chat.
QQ Browser
Tencent's Chinese-language web browser with a built-in Yuanbao AI assistant, split-screen browsing and file tools.
