Bolt.new

Bolt.new is an AI development environment that generates, runs and deploys full-stack JavaScript applications entirely in the browser. You type a prompt, and Bolt scaffolds the project, installs packages, starts a dev server and lets you edit the code or keep prompting. Developers and technical founders use it to prototype quickly without configuring anything locally.

Key features

• In-browser runtime that installs dependencies and runs a real dev server without local setup.
• Prompt-driven generation of complete projects using popular frameworks and component libraries.
• Full file tree and editor access, so you can change code by hand at any point.
• Error awareness: the assistant reads build and runtime errors and proposes fixes.
• One-click deployment and shareable project links for quick feedback rounds.
• Integrations with common backend and hosting services for data, auth and publishing.

Who it is for

• Developers who want a throwaway sandbox for testing ideas and libraries fast.
• Startup teams building prototypes and demos under time pressure.
• Educators and learners exploring how a full-stack project fits together.
• Freelancers producing quick client-facing proofs of concept.

Pricing

Bolt.new is free to try with a daily token allowance, and paid tiers increase the allowance for heavier use. Team plans are available for shared work. Up-to-date plan details are published on the Bolt website.

Why people choose Bolt.new

Searches for an AI tool that writes and runs code in the browser often end at Bolt.new because nothing needs to be installed: the project boots, runs and deploys in the same tab where it was described. That immediacy makes it a favourite for rapid prototyping, hackathons and testing a technical idea before committing to a full repository.