Comparison guide · Updated July 18, 2026

BrowserMCP vs Unchained: two ways to control your real Chrome

BrowserMCP.io is a strong fit when you want its published MCP server configuration and Chrome extension/current-tab workflow, with a public Apache-2.0 repository for its core MCP code. Unchained fits when you want a selected-profile workflow with an authenticated local bridge, hosted web control, mobile follow-ups, and a guided trial.

Start a guided browser trial

Start with a guided path; no pricing change is implied by this comparison.

Choose BrowserMCP.io for direct MCP control

Use its documented server configuration and installed extension to connect the current tab, then direct it from your MCP client.

Choose Unchained for a guided control plane

Choose a Chrome profile and direct the session from a supported hosted web, MCP, or CLI path; controls vary by path.

Answer first

The short answer

Both products let an agent work through a real Chrome session with existing browser state. The meaningful difference is the operating model, not a claim that one universally replaces the other.

BrowserMCP.io documents an MCP server configuration plus a separately installed Chrome extension centered on the current tab you connect. Its public Apache-2.0 repository contains core MCP code but says it cannot currently be built on its own because required monorepo utilities and types are not included. Unchained connects a Chrome profile on your computer to its hosted service through an authenticated bridge, adding a guided product surface and remote follow-up controls; exact UI and interaction controls vary across hosted web, MCP, and CLI paths.

Side by side

BrowserMCP.io vs Unchained

Only documented or directly product-backed differences are included. There are no invented speed, token, reliability, or pricing claims.

Question	BrowserMCP.io	Unchained
How Chrome connects	Install the extension, open its popup on the tab you want, and click Connect.	Run a local agent and choose a Chrome profile for the browser workflow.
Primary control surface	A compatible MCP application runs the documented `@browsermcp/mcp@latest` package; the installed Chrome extension connects the current tab.	Hosted web chat, supported MCP or CLI clients, and mobile follow-up controls can direct the selected session, with controls depending on the chosen path.
Operating model	The project describes its browser automation as local and says browser activity remains on the device.	A local agent connects Chrome to Unchained over an authenticated tunnel; Unchained is not a local-only service.
User direction	You select and connect the current tab, then direct work from the MCP client.	You choose a Chrome profile and direct the session through the selected Unchained path. Hosted web, MCP, and CLI paths do not promise identical interaction controls.
Setup path	Install Node.js, add the documented MCP server configuration, and separately install the Chrome extension.	A guided browser trial, with MCP and CLI paths available for developer workflows.
Best fit	Developers who want BrowserMCP.io's documented server-package and extension/current-tab workflow inside an existing MCP client.	People who want a guided browser-work product with profile selection, hosted continuity, and optional MCP or CLI paths.

BrowserMCP.io is better when

You want a direct local MCP setup

You already have a compatible MCP client and prefer to configure the server yourself.
You want to inspect the public Apache-2.0 core MCP repository, while accepting its README's warning that it cannot currently be built on its own.
You are comfortable installing BrowserMCP.io's separately documented Chrome extension.
You want to explicitly connect and control the current browser tab.
Its documented on-device browser-activity model is a requirement for your workflow.

Unchained is better when

You want guidance and continuity

You want to start through a guided browser trial rather than assemble the flow yourself.
You want to choose a Chrome profile and continue instructions through a hosted web or mobile surface.
You want a hosted control plane while keeping the selected Chrome profile on your computer.
You want MCP or CLI access as optional paths, without assuming every path exposes the same UI controls.

Data flow

The privacy tradeoff is material

Unchained is not local-only. Your Chrome profile remains on your machine, but commands, browser-derived page context, tool results, and related service data needed to run the workflow may be transmitted to Unchained and configured AI providers, and some service data may be stored. Review the current Unchained privacy policy before connecting sensitive work.

BrowserMCP.io describes its browser automation as local and says browser activity remains on the device. Your chosen MCP client, model, extensions, websites, and other services can still have their own data practices; review each component you use.

Verify the claims

Official sources

Product behavior can change. Check the linked documentation before deciding.

BrowserMCP.io core MCP repositoryApache-2.0 public repository containing the core MCP code. Its README says it cannot currently be built on its own because required monorepo utilities and types are not included.
BrowserMCP.io MCP server setupOfficial Node.js prerequisite and npx @browsermcp/mcp@latest configuration for supported MCP applications.
BrowserMCP.io Chrome extension setupOfficial steps to install the separately distributed Chrome extension, pin it, and connect the current tab; browser actions are then performed on that tab.
Unchained MCP guideCurrent Unchained MCP setup and integration guidance.
Unchained privacy policyCurrent disclosures for browser-derived data, AI providers, service storage, and user choices.