The Best agent-browser Alternative

agent-browser, also known as Vercel agent-browser since Vercel Labs built it, is an open-source browser automation CLI built for AI coding agents: a Rust CLI in front of a pure Rust daemon that drives Chrome directly over the DevTools protocol, with no Playwright or Node.js runtime required to run it. Its snapshot command returns a compact accessibility tree with @e refs, so agents click and fill against stable references instead of brittle selectors, and it ships as a skill for Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, and most other coding agents, with an MCP server available as an optional subcommand rather than the default path. It's free, well-designed, and widely adopted.

Yes, if the tasks you care about involve your real accounts or benefit from being visible. Both give a coding agent a browser through a CLI or skill rather than an MCP-first setup; ego lite adds your imported Chrome profile live by default, headful windows you can take over, parallel Spaces, and multi-action JavaScript execution. agent-browser remains a clean choice for disposable headless automation in scripts and CI.

Yes, with extra setup, and it isn't fully reliable yet. Pass a profile name and agent-browser copies that Chrome profile into a temp directory as a read-only snapshot, so it launches with your existing logins but nothing written during the session copies back to your real profile; on Windows you also have to close Chrome first, since profile files can be locked. There's also a persistent-profile mode meant to carry cookies and login state across restarts on its own, but it has an open bug report of the profile directory staying empty between runs. Connecting to a running Chrome over CDP works too, but the project's own docs flag that port as exposing full browser control to any local process. In ego lite the logged-in browser is the default: import your profile once and every agent task starts from it, live, with no extra flags.

The snapshot is only half of it. agent-browser's batch mode can fire a fixed list of commands in one process launch, but the model still can't act on what a snapshot returns until the whole batch finishes, so a task where each step depends on the last ends up as a long chain of command-then-model-reads-the-result cycles. ego lite lets the agent batch several actions in one JavaScript execution and reason about the result immediately, reading it as a compressed Snapshot. The savings come from the two stacked together, and they show up in whole-task token counts, not in any single step.

No. That's a philosophy both tools share. agent-browser's primary interface is its CLI, with an MCP server available as an optional subcommand for clients that want one. ego lite connects through the ego-browser shell by running /ego-browser inside your agent. Neither requires editing MCP config files as the default path.

Yes. They don't conflict. Some developers keep agent-browser for headless checks in CI or on Vercel Sandbox, and use ego lite for everything interactive: logged-in tasks, parallel research, anything worth watching. In practice the logged-in tasks are most of them.

Yes. ego lite is free with no subscription, and the ego-browser shell your agent connects through is MIT-licensed open source.