
Donobu
Donobu provides an AI-powered, Playwright-native test browser that developers and coding agents run locally to automatically explore web apps, detect issues, and generate self-healing tests. The platform eliminates brittle selectors and manual test maintenance by automatically updating tests when UI changes occur. Teams can run autonomous or manual browser flows directly on their own machines for faster, more reliable shipping.
- Artificial Intelligence
- AI Agents
- Developer Tools
- Software Only
Funding
Funding not disclosed


- swift.vc (opens in a new tab)investor website
Founders
Product
Problem
Developers and coding agents spend significant time writing and maintaining browser tests, which often break when UI elements change. Traditional test automation relies on brittle selectors and manual rewrites, slowing down development cycles and reducing confidence in web app reliability.
Solution
Donobu Studio is a local test browser that automatically explores websites, detects issues, and writes Playwright tests without manual scripting. Users simply point Donobu at their web app, and it generates deterministic, replayable tests while using AI-powered assertions for semantic checks beyond basic selectors. When the UI changes, Donobu self-heals tests automatically, eliminating the need for brittle selectors or manual test maintenance. The platform supports both autonomous and manual browser flows, giving developers and coding agents flexibility in how they validate their applications.
Target Audience
Primary users are software developers and AI coding agents who need fast, reliable browser test automation for web applications without the overhead of manual test maintenance.
Features
- AI-powered autonomous exploration of web apps to detect issues and generate Playwright tests automatically
- Self-healing test maintenance that automatically updates tests when UI changes occur
- Playwright-native test generation for deterministic, replayable browser flows
- AI-powered assertions for semantic checks that go beyond traditional selector-based validation
- Local execution environment that runs tests securely on the developer's own machine
- Support for both autonomous and manual browser flow execution