Browser Harness: review, pricing, security and alternatives

What Browser Harness does

Browser Harness belongs to the browser agents family: agents that open pages, click, fill in forms and extract information in place of a human. On our grid it ranks #10 of the 21 projects of this family listed in the directory.

It is not an agent in itself: it is a component other agents use (memory, isolated execution, web access, model gateway or monitoring). You pick it based on the agent or framework it has to equip.

Who is Browser Harness for?

It helps people who spend time on websites without an API: it clicks, fills in and reads pages for you. Typical tasks people give it:

• fill in repetitive forms
• collect prices or information across several sites
• test a website's user flow
• fetch documents from a customer portal

It is a good candidate if your data must stay on your machines.

Access and human control

Its documentation does not detail the access granted to the agent: check the settings before connecting it to your accounts.

We could not establish whether it asks for human approval before sensitive actions: test it first on an unimportant account or folder.

Browser Harness pricing

The code is free, under the MIT licence.

Getting started with Browser Harness

1. Install it: the project ships as a Python package (install with pip or uv). The exact command is in the repository README.
2. Start with the minimal example from the docs, then add one tool at a time and check what the agent does with it.
3. Give it a short, checkable task, review the result and its action log, then raise the difficulty step by step.

Security: risk level

Every page visited may hide instructions: do not leave a browser agent logged into sensitive accounts without action approval.

Three habits: least privilege (minimal rights, dedicated keys), human approval for irreversible actions, a sandbox for code execution. The AI agent security check reviews your setup in a few minutes.

Project activity and releases

Created on April 17, 2026, the browser-use/browser-harness repository has 18,587 stars, 1,836 forks and 57 open issues, with 780 commits in total. It received changes this month.

Over the last 52 weeks: 535 commits, an average of 10.3 per week.

14 releases in total; 13 in the last twelve months. Latest release: v0.1.13, on September 4, 2026.

Browser Harness vs other browser agents

GitHub stars of the best-rated open-source projects in the browser agents family. Stars measure attention, not quality: a heavily promoted project collects them fast, a specialised tool will have few.

Browser Harness and other browser agents at a glance

The 7 best-ranked agents in the same family, 7 of them open source. The score out of 100 only applies to open-source projects; for proprietary services we show the published entry price. A dash marks information the documentation does not state.

How we rated it

Score: 77/100, computed only from public, verifiable data, with no subjective testing or partnership:

• Adoption 27/40: 18,587 stars on a log scale (40 points from about 200,000).
• Activity 30/30: last commit less than a month ago, 13 releases in six months, 535 commits in a year.
• Framework 20/30: licence, default human approval, self-hosting, model choice and documentation site.

The score does not say whether the agent will succeed at your tasks: it measures how solid the project is. The full grid is on the method page.