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Open-source alternatives to Bolt.new

Bolt.new does 6 jobs: build a full-stack web app from a chat prompt, run and preview the app in the browser (WebContainers), add a database and login (Bolt Database / Supabase), publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import). Most projects replace one or two of them, so pick the job you actually need.

Quick answer

Facts checked 16 Oct 2026

Open-source alternatives to Bolt.new that run locally, allow commercial use and need no paid API include sandboxd (build a full-stack web app from a chat prompt and run and preview the app in the browser (WebContainers); MIT; runs on CPU). None of the 8 projects we track covers all 6 Bolt.new jobs, so most people combine two or more.

Your requirements

Where will it run?
Can I use it commercially?

Checks code and model licences. Includes projects with conditions, such as share-alike or revenue limits, marked amber. Unknowns are hidden.

Paid services needed?
What hardware do you have?
Operating system

8 projects

bolt.diy

stackblitz-labs/bolt.diy
★ 20k active 2d ago

Self-hosted, open-source version of Bolt.new that builds and runs full-stack web apps in the browser with 22+ model providers, including Ollama.

Replaces Build a full-stack web app from a chat prompt + Run and preview the app in the browser (WebContainers) + Add a database and login (Bolt Database / Supabase) + Publish the app to a live URL (Bolt hosting / Netlify) + Build a mobile app from a prompt (Expo) (partly) Not: turn a screenshot or design into an app (image or Figma import)
Runs locally
Confirmed: Yes
Commercial use
Partial: Conditions · MIT
Paid services
Partial: Optional only
Hardware
Unknown: Unknown
Setup
Confirmed: Medium
7 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Chef

get-convex/chef
★ 4.6k active 1d ago

Convex's AI app builder, built from bolt.diy, that generates full-stack web apps with a Convex database, auth, file uploads and realtime UI.

Replaces Build a full-stack web app from a chat prompt + Run and preview the app in the browser (WebContainers) + Add a database and login (Bolt Database / Supabase) (partly) Not: publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import)
Runs locally
Partial: Partly
Commercial use
Confirmed: Yes · Apache-2.0
Paid services
No: Required
Hardware
Unknown: Unknown
Setup
Confirmed: Hard
7 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Claudable

anymorph-ai/Claudable
★ 4.1k active 6mo ago

Local Next.js app builder that drives a coding-agent CLI you already use (Claude Code, Codex, Cursor, Qwen Code) to build web apps with a live preview.

Replaces Build a full-stack web app from a chat prompt + Run and preview the app in the browser (WebContainers) + Add a database and login (Bolt Database / Supabase) + Publish the app to a live URL (Bolt hosting / Netlify) (partly) Not: build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import)
Runs locally
Confirmed: Yes
Commercial use
Confirmed: Yes · MIT
Paid services
Partial: Optional only
Hardware
Unknown: Unknown
Setup
Confirmed: Medium
7 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Dyad

dyad-sh/dyad
★ 22k active today

Free desktop AI app builder that writes and runs JavaScript web apps on your computer, using your own model keys or local models.

Replaces Build a full-stack web app from a chat prompt + Run and preview the app in the browser (WebContainers) + Add a database and login (Bolt Database / Supabase) (partly) Not: publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import)
Runs locally
Confirmed: Yes
Commercial use
Partial: Conditions · Apache-2.0
Paid services
Partial: Optional only
Hardware
Confirmed: CPU works
Setup
Confirmed: Easy
8 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Fragments

e2b-dev/fragments
★ 6.4k active 1d ago

Next.js template from E2B that generates small Next.js, Vue, Streamlit, Gradio or Python apps from a prompt and runs them in E2B cloud sandboxes.

Replaces Build a full-stack web app from a chat prompt + Run and preview the app in the browser (WebContainers) (partly) Not: add a database and login (Bolt Database / Supabase), publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import)
Runs locally
Partial: Partly
Commercial use
Confirmed: Yes · Apache-2.0
Paid services
No: Required
Hardware
Unknown: Unknown
Setup
Confirmed: Medium
6 of 8 facts sourced · checked today GitHub ↗ View details

Onlook

onlook-dev/onlook
★ 27k active 7w ago

Browser-based visual editor for Next.js + Tailwind apps. Create from a prompt or image, then edit by clicking and dragging with AI help.

Replaces Build a full-stack web app from a chat prompt + Run and preview the app in the browser (WebContainers) + Publish the app to a live URL (Bolt hosting / Netlify) (partly) Not: add a database and login (Bolt Database / Supabase), build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import)
Runs locally
Partial: Partly
Commercial use
Confirmed: Yes · Apache-2.0
Paid services
No: Required
Hardware
Unknown: Unknown
Setup
Confirmed: Hard
6 of 8 facts sourced · checked today GitHub ↗ View details

sandboxd

tastyeffectco/sandboxd
★ 970 active today

Self-hosted engine and web console where a coding agent builds apps from a prompt in isolated Docker sandboxes on your own server, each with a preview URL.

Replaces Build a full-stack web app from a chat prompt + Run and preview the app in the browser (WebContainers) (partly) Not: add a database and login (Bolt Database / Supabase), publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo), turn a screenshot or design into an app (image or Figma import)
Runs locally
Confirmed: Yes
Commercial use
Confirmed: Yes · MIT
Paid services
Confirmed: None required
Hardware
Confirmed: CPU works
Setup
Confirmed: Medium
8 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Screenshot to Code

abi/screenshot-to-code
★ 80k active 6d ago

Turns screenshots, mockups, Figma designs or screen recordings into front-end code (HTML/Tailwind, React, Vue and more) using cloud AI models.

Replaces Turn a screenshot or design into an app (image or Figma import) (partly) Not: build a full-stack web app from a chat prompt, run and preview the app in the browser (WebContainers), add a database and login (Bolt Database / Supabase), publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo)
Runs locally
Confirmed: Yes
Commercial use
Confirmed: Yes · MIT
Paid services
Partial: Optional only
Hardware
Unknown: Unknown
Setup
Confirmed: Medium
7 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Common questions about Bolt.new alternatives

Is there a free, open-source alternative to Bolt.new?

Yes. bolt.diy, Dyad, Claudable, sandboxd and Screenshot to Code are free to download and run on your own computer without paid API keys. Each covers only part of what Bolt.new does, so check which job you need.

Can I do build a full-stack web app from a chat prompt locally without a Bolt.new subscription?

Yes, with Dyad (Apache-2.0), sandboxd (MIT) and bolt.diy (MIT). Check the hardware notes and licence conditions on each page before you start.

Can I do run and preview the app in the browser (WebContainers) locally without a Bolt.new subscription?

Yes, with Dyad (Apache-2.0), sandboxd (MIT) and bolt.diy (MIT). Check the hardware notes and licence conditions on each page before you start.

Which Bolt.new alternatives can I use commercially?

Confirmed: Chef, Claudable, Fragments, Onlook, sandboxd and Screenshot to Code. With conditions: bolt.diy and Dyad. This is not legal advice; read each licence.

Does any open-source project replace all of Bolt.new?

Not as of 2026-10-16. Build a full-stack web app from a chat prompt, run and preview the app in the browser (WebContainers), add a database and login (Bolt Database / Supabase), publish the app to a live URL (Bolt hosting / Netlify), build a mobile app from a prompt (Expo) and turn a screenshot or design into an app (image or Figma import) are covered by different projects.

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