Bolt.diy

Open source alternative to Bolt.new, OutSystems, Mendix and Bubble

19.8K stars
MIT
Updated this year
Last commit 256 days ago

Last verified Oct 6, 2026

Run an open source AI app builder that generates and edits full-stack web apps with your own model keys. Bolt.diy is separate from hosted Bolt.new.

Visit website GitHub19.8K 1-click deploy on Hostinger

Read the full breakdownWho it is for, how it works, trade-offs, the quick start and the FAQ

who it's for

Who Bolt.diy is for#

Developers prototyping full-stack apps

Use Bolt.diy to test product ideas in a prompt-driven environment while keeping access to the generated code and project configuration.

Skip if:

Skip if you need a fully managed commercial workspace and do not want to run or configure the project yourself.

Teams evaluating AI app builders

Use Bolt.diy when you want to compare a Lovable, v0, or hosted Bolt.new-style workflow against an open source project you can inspect.

Skip if:

Skip if production governance requires a reviewed codebase before any generated app is deployed.

the problem

The problem it solves#

Hosted AI app builders can turn an idea into a working prototype quickly, but they also place the runtime, model configuration, and usage limits behind a commercial service. Teams that need the same prompt-to-app workflow with more control need an open source project they can inspect, run, and adapt. Bolt.diy fills that gap for developers who want browser-based app generation without treating the hosted Bolt.new product as the open source artifact.

how Bolt.diy solves it

How it solves it#

Prompt-to-app generation

Creates and edits full-stack web apps from natural language prompts, including project files and running previews.

Self-hosted project control

Runs as an open source project so technical teams can inspect the code, configure deployment, and manage updates themselves.

Bring your own model keys

Supports configuring AI providers so teams can use their preferred model accounts instead of depending only on a hosted service plan.

strengths · trade-offs

Strengths and trade-offs#

Strengths

Open source path for Bolt-style workflowsBolt.diy gives developers a codebase they can run and inspect while keeping the fast app-generation loop that made hosted Bolt.new popular.
Model-provider flexibilityTeams can configure supported AI providers with their own keys, which helps avoid tying every prototype to one hosted account or quota model.

Trade-offs

-Self-hosting requires maintenanceBolt.diy gives more control than hosted Bolt.new, but teams still need to manage setup, provider keys, updates, security review, and deployment reliability.

versus alternatives

Bolt.diy vs alternatives#

Bolt.diy vs hosted Bolt.new

Bolt.diy is the open source project for developers who want to run and inspect the app-builder code themselves. Hosted Bolt.new is the commercial browser service for users who want StackBlitz to manage the workspace experience.

Choose Bolt.diy when source access, self-hosting control, and provider-key configuration matter. Choose hosted Bolt.new when you prefer a managed product and accept its account, plan, and usage limits.

install · quick start

Quick start#

bash

git clone https://github.com/stackblitz-labs/bolt.diy.git
cd bolt.diy
pnpm install
pnpm dev

tech stack · detected from GitHub

What it's built on#

Languages: JavaScriptTypeScript
Frameworks: React

frequently asked

FAQ#

Is Bolt.diy the same as Bolt.new?

No. Bolt.new is the hosted commercial app builder from StackBlitz. Bolt.diy is the open source project from StackBlitz Labs that lets developers run a similar prompt-to-app workflow themselves.

Is Bolt.diy open source?

Yes. The StackBlitz Labs bolt.diy repository is MIT licensed and is the open source project this listing covers.

Who should use Bolt.diy?

Bolt.diy fits developers and technical teams that want an AI app builder they can run, inspect, and configure with their own model provider keys.

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Hostinger

Run Bolt.diy on your own server

Hostinger sets Bolt.diy up as a one-click app on a VPS.

Deploy on Hostinger

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Who Bolt.diy is for#