Split browser panes for humans and agents. Save and control workspaces
Free, no paid tierVisit WebsiteFreeVisit Website
Tracked since2026
The Bottom Line
- Price
- Free, no paid tier. Compare plans
Key facts
- Split browser into panes, save sessions, and switch workspaces with a session picker.
- Control panes from the CLI and watch agents work in independent profiles.
- Built-in ad blocking, dark mode, and optional Bitwarden integration.
Pros
- Free and open source with no paid tiers
- Cross-platform support (macOS, Windows, Linux) with portable host option
- Unique multiplexer and agent control features not found in standard browsers
Cons
- CLI requires a recent Node.js version, which may not be pre-installed
- Linux setup requires Xvfb and manual host configuration, adding complexity
What is bmux?
bmux is a free and open-source browser designed for both human users and autonomous agents. It allows you to split the browser window into multiple panes, each with its own address bar, enabling side-by-side comparison of pages, documentation, or dashboards. Sessions let you save and switch between workspaces, keeping your layout and floating panes intact. The session picker provides quick filtering and switching. For developers and automation, bmux offers agentic browsing: you can control a pane from the command line, watch multiple agents work in independent profiles, and combine profile connections with simulated devices and browser workers for automated scraping. It also includes built-in ad blocking, dark mode, saved forms, optional Bitwarden integration, and support for custom scripts and plugins. Available on macOS, Windows, and Linux, with a portable host option for remote access.
Key Features
- Split panes horizontally or vertically with independent address bars
- Floating panes that stay with a session and can be resized and moved
- Session picker to filter and switch between saved workspaces
- Agentic browsing: control a pane from the CLI and monitor multiple agents
- Mobile device simulation with phone presets and orientation switching
- Automated scraping using profile connections, simulated devices, and browser workers
- Built-in ad blocking and dark mode
- Saved forms for filling non-password fields
Pricing Plans
Pricing checked Oct 4, 2026
| Plan | Price | Details |
|---|---|---|
| Free | Free |
+3 moreShow less
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Is bmux worth the price?
Fair value
The pricing is extremely generous since the entire product is free with no paid tiers or trials.
This is rare for a specialized browser tool with agentic browsing and automated scraping capabilities. It is best for developers, QA engineers, and AI agent builders who need a zero-cost solution for multi-session browser control.
Reviews
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bmux FAQ
How does the browser multiplexer work in bmux?
The browser multiplexer lets you split the browser window into multiple panes, each with its own address bar. You can split horizontally or vertically, open different pages in each pane, and save the layout as a session. Floating panes can be kept beside your work and resized or moved independently.
Can I control a pane from the command line?
Yes, bmux supports agentic browsing where you can control a pane from the CLI. This allows you to send commands, navigate pages, and monitor agents working in independent profiles, all from the terminal.
What mobile device presets are available for simulation?
bmux includes phone presets that simulate mobile layouts. You can choose a preset, browse with the mobile viewport, and switch orientation without leaving the application. The exact list of presets is not detailed on the site, but they cover common device sizes.
How does automated scraping work in bmux?
Automated scraping combines profile connections, simulated devices, and browser workers. You can set up multiple profiles with different configurations, simulate mobile or desktop views, and monitor the workers together from a single interface. The CLI can be used to orchestrate scraping tasks.
What keyboard shortcuts are available in bmux?
bmux provides default keyboard shortcuts for window management, splitting, session switching, and navigation. For example, Ctrl+B then % splits side by side, Ctrl+B then " splits above and below, and Ctrl+B then s opens the session picker. You can also customize these bindings.
Can I integrate a password manager like Bitwarden?
Yes, bmux offers optional Bitwarden integration. Once set up, you can unlock your vault and fill logins directly within the browser. This is an optional setup, not enabled by default.
Is ad blocking built into bmux?
Yes, bmux includes built-in ad blocking that blocks ads and trackers. It also has a built-in Dark Reader for dark mode on websites, and saved forms for filling non-password fields.
How do I set up bmux on Linux?
On Linux, you need to install Node.js 22.12 or newer, Xvfb, and the host system libraries. Download the portable host archive for your architecture (x64 or ARM64), extract it, set proper permissions for chrome-sandbox, and start the host with xvfb-run -a node bmux.mjs host. This enables remote access as well.
Source: bmux.cc