bolt.diy
bolt.diy is the official open-source version of Bolt.new, allowing developers to run a prompt-to-app builder with their choice of hosted or local language models. It offers more model and deployment control than the hosted product, with an important WebContainer licensing caveat for commercial use.
bolt.diy is the right Bolt variant for technical teams that prioritize self-hosting and model choice and are prepared to operate the stack responsibly.
Pricing Plans
Source code
The bolt.diy repository is MIT-licensed.
Models and hosting
Model APIs, infrastructure, and any commercial WebContainer licensing are separate.
Core Features
1Prompt-to-app workflow
- Generate and edit full-stack web applications from prompts
- Run, preview, and iterate on code
- Retain access to the generated project
2Model flexibility
- Connect multiple hosted model providers
- Use bring-your-own API keys
- Support local model configurations
3Self-hosting
- Run the application on infrastructure you control
- Customize the open-source codebase
- Choose deployment and authentication patterns
Pros
- More provider choice than a closed hosted builder
- Open-source code supports customization and self-hosting
- Local-model options can reduce dependency on hosted APIs
Cons
- Self-hosting requires maintenance and security work
- Commercial WebContainer API usage may require a separate license
- Generated applications still require dependency, security, and architecture review
bolt.diy Review
bolt.diy is the official open-source version of Bolt.new, allowing developers to run a prompt-to-app builder with their choice of hosted or local language models. It offers more model and deployment control than the hosted product, with an important WebContainer licensing caveat for commercial use.
What bolt.diy Is
A self-hostable, model-flexible prompt-to-app builder derived from Bolt.new. The product is most useful when its workflow matches the surrounding engineering process, permissions, and review model.
Core Capabilities
Prompt-to-app workflow
- Generate and edit full-stack web applications from prompts
- Run, preview, and iterate on code
- Retain access to the generated project
Model flexibility
- Connect multiple hosted model providers
- Use bring-your-own API keys
- Support local model configurations
Self-hosting
- Run the application on infrastructure you control
- Customize the open-source codebase
- Choose deployment and authentication patterns
Best Use Cases
- Developers wanting a self-hosted Bolt experience
- BYOK and multi-model app generation
- Teams customizing a prompt-to-app platform
Limitations
- Self-hosting requires maintenance and security work
- Commercial WebContainer API usage may require a separate license
- Generated applications still require dependency, security, and architecture review
Privacy and Operational Notes
Self-hosting gives deployment control, but prompts and code still reach any configured model provider. Protect API keys, isolate generated execution, and review third-party dependencies.
bolt.diy Alternatives
The most relevant comparison set is Bolt.new, Lovable, Replit Agent, v0. Compare the products by execution environment, model flexibility, repository access, review controls, deployment model, and total usage cost rather than by headline feature count alone.
Verdict
bolt.diy is the right Bolt variant for technical teams that prioritize self-hosting and model choice and are prepared to operate the stack responsibly.
Official Sources
Best For
- Developers wanting a self-hosted Bolt experience
- BYOK and multi-model app generation
- Teams customizing a prompt-to-app platform
Not Ideal For
- Users wanting a zero-maintenance hosted service
- Commercial deployments that have not reviewed WebContainer licensing
- Native mobile application generation
Privacy Notes
Self-hosting gives deployment control, but prompts and code still reach any configured model provider. Protect API keys, isolate generated execution, and review third-party dependencies.
Sources
Update History
- Aug 14, 2026: Created from current official product information with normalized branding, pricing, capabilities, and comparison metadata.
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