Bolt AI
Bolt AI turns plain‑English prompts into full‑stack web apps inside the browser, using StackBlitz WebContainers and multiple coding models.
About this tool
Bolt AI is a cloud‑hosted development environment that lets users describe a desired web application in natural language and receive a complete codebase within seconds. The service runs on StackBlitz WebContainers, which emulate a full Node.js runtime inside a browser tab, eliminating the need for local installations or separate servers. Users can import Figma frames or existing design systems, and the AI respects those visual guidelines while generating HTML, CSS, and JavaScript.
Beyond front‑end scaffolding, Bolt AI provisions backend resources such as PostgreSQL databases and authentication flows through its Bolt Cloud interface. The platform supports several large‑language models for code generation, including Claude Code as the default and OpenAI Codex as a secondary option, with a Google Gemini model slated for future release. Companies ranging from startups to enterprise teams use the tool for rapid prototyping, proof‑of‑concept builds, and even production deployments.
What you can do
In‑Browser Full‑Stack Runtime
WebContainers deliver a genuine Node.js environment inside the browser, allowing npm installs, live server previews, and API endpoint testing without any local setup.
Multi‑Model Coding Agent
Bolt AI offers a selectable model dropdown, currently featuring Claude Code and OpenAI Codex, each providing different reasoning depths and response times.
Design System Import
Users can drop a Figma frame or upload a component library, and the AI generates code that aligns with the supplied visual standards and brand guidelines.
Who is it for?
- Rapid prototyping for product managers who need a functional UI and API layer to demonstrate concepts to stakeholders within minutes.
- Agencies converting client‑provided Figma designs into ready‑to‑host web applications while preserving brand‑specific components and styles.
- Solo developers building a full‑stack side project without configuring a local development environment, leveraging the built‑in database and auth services.
Before you choose
What are the limits on runtime resources (CPU, memory) for WebContainers, and how might they affect larger applications?
How does the platform handle third‑party package licensing, and are there any restrictions on using proprietary npm modules?
Frequently asked questions
Can I export the generated code to my own repository?
Yes, Bolt AI provides a download option that packages the entire project, including configuration files, allowing users to push the code to GitHub, GitLab, or any other version‑control system for further development.
Is the database instance persistent across sessions?
The Bolt Cloud PostgreSQL instance remains active as long as the project is not deleted, but data is scoped to the specific Bolt AI workspace. Users should back up critical data before terminating a project.
How does the model selection affect generation speed?
Choosing the deeper reasoning model typically triples the processing time per response, delivering more nuanced code but requiring longer waits. The default Claude Code balances speed and quality for most use cases.
Check the official website for current features, pricing, and terms.
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