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Browserbase
Cloud browser infrastructure for AI agents and automation, with the open-source Stagehand SDK and the Director no-code builder. Browserbase raised a $40 million Series B at a $300 million valuation in June 2025, led by Notable Capital.
Engineering teams building AI agents or automations that need many isolated cloud browsers, logins, proxies, and session replays.
Business users who want a finished agent to run a workflow for them, or teams with spiky usage that need a fixed monthly bill.
Verdict
Browserbase is a San Francisco company, started in 2024 by Paul Klein IV, that runs headless web browsers in the cloud for AI agents and automation scripts. Developers connect to its browsers with Playwright, Puppeteer, or Selenium, or with its open-source Stagehand SDK, to log in to sites, fill forms, pull documents, and record what the agent did. It earns attention because agents keep running into websites with no API, and Browserbase handles the hard part of running thousands of browsers reliably so product teams can focus on what the agent should do.
Score Breakdown
How Browserbase scores in the categories that matter to its buyers.
Pricing
Browserbase publishes four plans. Paid plans include a block of browser hours and then bill extra hours by usage.
| Plan | Price | What stands out |
|---|---|---|
| Free | $0 / month | 3 concurrent browsers, 1 browser hour, 15-minute sessions |
| Developer | $20 / month | 25 concurrent browsers, 100 browser hours, 1 GB of proxies, then $0.12 per browser hour |
| Startup | $99 / month | 100 concurrent browsers, 500 browser hours, 5 GB of proxies, then $0.10 per browser hour |
| Scale | Custom | 250+ concurrent browsers and custom limits |
The Field at a Glance
How Browserbase compares with other AI browser agents & web automation vendors we reviewed, by Overall Score and relative typical engagement cost.
Browserbase scores 7.6 in AI browser agents & web automation, under Browser Use (8.2), level with Kernel (7.6), and ahead of Anchor Browser (7.4) and Skyvern (7.4). Relative cost lands mid-band for this subcategory.
Use-case matrix
| Use case | Fit | Notes |
|---|---|---|
| Agents that browse and act on websites | Strong | The core product: isolated cloud browsers with live view and replays. |
| Receipt and document retrieval | Strong | Ramp uses it to collect receipts from vendor portals. |
| Healthcare payer portal work | Strong | Commure runs claim status checks through it. |
| Developers on Playwright or Puppeteer | Strong | Connects to existing frameworks with little change. |
| No-code business users | Mixed | Director helps, but most customers are developers. |
| Fixed-budget, spiky workloads | Mixed | Overage is billed per browser hour. |
Review Excerpts
Excerpts from company materials and public coverage of Browserbase, plus representative buyer views drawn from public information. Paid reviews and pay-for-play sites were excluded.
“When a health system or practice submits a claim, we process and reconcile claims against insurance... Health systems hire teams of people to check these portals manually. With virtualized browsers from Browserbase – we’ve built AI agents that do this automatically”
“It’s very developer friendly... That’s a number one necessity to integrate. The fact that we also requested a feature and it was implemented in a month was quite nice”
“Overage is billed per browser hour, so a spiky workload makes the monthly bill hard to predict.”
Representative buyer view
Where customer reviews couldn't be found, our analysts attempted to give a voice to buyer sentiment, drawing on real information from review sites, forums, and product documentation.
Based on: Browserbase’s pricing page
Company Facts
- Founded
- 2024 (CB Insights)
- Headquarters
- San Francisco, California, United States (CB Insights)
- Total funding raised
- $67.5M (CB Insights)
- Key investors
- Kleiner Perkins, CRV, Notable Capital, Okta Ventures, Reed McGinley-Stempel (CB Insights)
- Website
- browserbase.com
Key Leadership
Paul Klein IV
Founder and CEO
Methodology
This page is an independent evaluation of Browserbase for buyers comparing options in AI browser agents & web automation. AI Industry Reviews accepts no sponsorships, advertising, or pay-for-placement fees. Browserbase did not pay for this review.
What we scored
The headline number is an Overall Score on a 0-10 scale. Eight criteria sit under it in two groups.
- Buyer outcomes (for AI browser agents & web automation)
- Cloud browser infrastructure
- Developer SDKs & Stagehand
- Reliability at scale
- Predictable usage cost
- Company & commercial
- Innovation & product leadership
- Project management & communication
- Pricing
- Contract fairness
Pricing measures whether the price looks fair for the value delivered, including packaging and renewal friction that show up in real buying cycles.
Score Composition
| Input | Weight | What it covers |
|---|---|---|
| Reviews | 40% | A proprietary read of what practitioners say about likes, complaints, and day-to-day use, including public review sites, forums, and private chat rooms. Paid reviews and pay-for-play sites are out of scope. |
| Product | 35% | Hands-on look at screens and workflows. |
| Pricing | 15% | Whether the price looks fair for what you get. |
| Docs & training | 10% | Docs, tutorials, and training material. |
How we balanced the evidence
The Overall Score is the simple average of the eight criteria. Recommendation language follows that score and the use-case matrix above.
Scope
Browserbase is graded here as AI browser agents & web automation. Criteria scores can move as more review volume and product checks are added.