BrowserBash vs Google Antigravity: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of BrowserBash and Google Antigravity — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
BrowserBash
The Testing Academy
Free, open-source CLI that turns plain-English objectives into real browser automation driven by an AI agent on local or cloud models.
Key features
- Natural-language automation: Turns one plain-English sentence into a real browser test with no selectors or code.
- Free local or cloud models: Runs on free Ollama or OpenRouter models with zero required API keys.
- NDJSON event stream: Emits structured run events that CI and AI agents can consume directly.
- Dashboard with replays: A free account adds run history, video recordings, and per-run replay.
- Open source Apache-2.0: Fully open-source CLI installable via a single npm command.
- Bring-your-own key option: Optionally use an Anthropic or OpenRouter key for stronger models.
Best for
- Writing end-to-end browser tests from plain-English descriptions.
- Running automated UI checks inside CI pipelines via the NDJSON stream.
- Letting AI agents drive a real browser to complete web tasks.
- Recording and replaying runs to debug flaky web flows.
- Automating repetitive website actions without writing selectors.
Google Antigravity
A Google-built AI-assisted development environment and editor with natural-language code commands, context-aware completions, and collaborative workflows.
Key features
- Natural-Language Code Commands: Accepts plain-language instructions to generate, refactor, or modify code across the active workspace, enabling developers to describe intent instead of writing every change manually.
- Context-Aware Tab Autocompletion: Provides tab-triggered autocompletions informed by project context, open files, and prior code to produce more relevant and accurate suggestions.
- Configurable Behavior and Context Window: Lets users configure how much context the assistant uses and tune response behavior, balancing autonomy and developer control for different tasks.
- Integrated Progress Reporting and Task Management: Automatically generates progress reports, creates verification tasks, and surfaces task statuses within the environment to track feature completion and code quality.
- Walkthroughs and Product Demos: Produces interactive walkthroughs or guided explanations demonstrating how the final product or a feature works, useful for handoffs and stakeholder reviews.
- Chrome and Workspace Integration: Works alongside Chrome for in-browser verification and presents in-context checks and end-to-end verification steps tied to the workspace.
- Desktop IDE with Google Account Sync: Desktop application that signs into a Google account to sync settings, project context, and collaboration artifacts across devices.