browserbase/stagehand

Project overview

browserbase/stagehand is a JavaScript/TypeScript browser automation framework that allows developers to mix programmatic code with natural language instructions. It uses caching to reduce LLM dependency and provides methods for single actions, multi-step agent tasks, and structured data extraction.

Project type

AI Agent

Use cases

Automation

Deployment

Refer to project documentation

License

MIT

Best for

• Developers who want to combine deterministic code with flexible natural language inputs for browser automation.
• Operations teams maintaining automated workflows who need cached actions to reduce token usage and handle minor website changes.

Key capabilities

• Execute individual browser actions using natural language via the act() method.
• Execute multi-step tasks using the agent() method.
• Extract structured data from a web page using the extract() method.
• Caches repeatable actions to save time and tokens, running without LLM inference until the website changes and breaks automation.
• Preview AI actions before running them.

Limitations and risks

• Best used with an API key for an LLM provider and Browserbase credentials.
• Requires coding setup and JavaScript/TypeScript knowledge, making it inaccessible for no-code workflows.

Getting started

• Install via npm or pnpm, configure your API keys in a .env file, run the build process, and execute the example scripts to verify functionality.

Evidence and sources

• GitHub project description: The SDK For Browser Agents
• README: Stagehand is a browser automation framework used to control web browsers with natural language and code.
• README: By combining the power of AI with the precision of code, Stagehand makes web automation flexible, maintainable, and actually reliable.
• README: By letting developers choose what to write in code vs. natural language (and bridging the gap between the two) Stagehand is the natural choice for browser automations in productio…
• README: Use act() to execute individual actions

Reviewed at: 2026-07-20T13:08:12Z