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Browser support

Bolt works best in Chrome and other Chromium-based browsers (e.g., Edge) on desktop. Mobile browsers aren’t fully supported yet. Browser extensions such as ad blockers, privacy tools, or VPNs can sometimes cause issues. If things aren’t working as expected, try turning them off and refreshing the page.

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Platforms

Use Bolt to build websites and web apps. You can turn Bolt projects into mobile applications using Expo.

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Languages and frameworks

Bolt focuses on JavaScript-based web technologies. It supports:
  • Node.js for the backend.
  • Browser-native code: any JavaScript framework that runs on the frontend.
This means you can’t build an application using other languages (such as PHP or Python) for the backend.

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Databases

Supabase, Firebase, and other cloud-based databases should work when your project has the correct connection information and is configured correctly. Local databases can work, but saving changes over time may not work as expected and should be used with caution. Bolt provides built-in hosting for all of your projects with an available integration for Supabase. This means:
  • For simple websites, such as blogs or other content sites, create a static site hosted by Bolt.
  • For web apps, build a frontend that you host on Bolt, with a decoupled backend using Supabase for your database, and a headless CMS if you need content-editing abilities. Supabase provides an API to interact with your database, as well as authentication and storage services.