Bolt.new is described as 'In-browser AI web development agent that leverages StackBlitz’s WebContainers to allow for full stack application development. The application presents users with a simple, chat-based environment in which one prompts an agent to make code changes that are updated' and is an website in the development category. There are more than 100 alternatives to Bolt.new, not only websites but also apps for a variety of platforms, including Mac, Windows, SaaS and Linux apps. The best Bolt.new alternative is Claude Code. It's not free, so if you're looking for a free alternative, you could try opencode or Void. Other great sites and apps similar to Bolt.new are Lovable, Cursor, Codex and CerebrasCoder.