Bolt

AI app builder that generates and runs full-stack web apps in-browser from chat prompts, made by StackBlitz.

Ask your AI about this, with this page as the source:ChatGPT ↗Claude ↗Perplexity ↗

Bolt builds websites, web apps and mobile apps from a chat in the browser. You describe what you want, an AI agent plans and writes the code, and the running app appears next to the chat, with nothing to install.

The development environment runs inside your browser tab on WebContainers, StackBlitz's technology for running Node.js in the browser, so the files, dependencies and dev server are all local to the page and you can open the code and edit it as Bolt writes it. Bolt is limited to JavaScript: any frontend framework plus Node.js on the backend; Python or PHP backends are not supported. Mobile apps are built with Expo.

Bolt Cloud supplies the rest without outside accounts: hosting on a free bolt.host address or a custom domain, databases with auth, file storage, secrets and server (edge) functions, and domain purchase. You can connect Supabase or deploy to Netlify instead. Every prompt saves a version you can restore, projects download as a zip, and a GitHub connection backs up commits and supports branches. The code is yours to use commercially.

The main limits are the browser itself: full editing needs Chrome or another Chromium browser (Safari gets read-only code and hosted previews), and phones can't use code view or the database. There's no public API or CLI, and no supported way to move a Supabase database into Bolt Database.

Where it fits

How Bolt itself is built

2 tools, from its own code, website and Product Hunt page.

Who uses it

24 makers' products, each linked to the source that shows it.

The maker says so 23Seen on the website 1How evidence is collected →
ComposioGives AI agents access to 1,000+ third-party tools, handling OAuth, permissions and exec…

“Bolt.new is our go-to for simplified, lightning-fast frontend design.”

AI App BuildersMaker says so · source ↗
Perfai SecurityFind & fix live vulnerabilities in Vibe Apps with 1-prompt.

“We compliment bolt.new with our security solution built for vibe-coders using the platform.”

AI App BuildersMaker says so · source ↗
RankfenderThe platform for modern visibility management ( SEO & GEO )

“We chose Bolt.new because: • Execution speed: instant full-stack scaffolding • AI-native workflow: agent-based building instead of simple autocomplete • Modern stack compatibility: works well with Supabase and your SaaS architecture (Rankfender, Patrimexia) • Instruction-driven development: aligns with your preference for structured prompts over manual coding • Faster MVP iteration with lower friction and reduced token cost In short: execution velocity and leverage over traditional development overhead.”

AI App BuildersMaker says so · source ↗
BoxoLaunch AI-Generated Features in your Mobile App. Fast.

“When we want production-ready UI with real data bindings, Bolt gets us there quicker than anything else. Solid output, minimal cleanup.”

AI App BuildersMaker says so · source ↗
APIRadarReal-time leaked API key scanner for public GitHub repos

“Bolt.new lets me prototype and iterate on API Radar’s UI and flows insanely fast—AI‑assisted scaffolding plus live preview means I can test ideas, fix UX issues, and ship improvements in hours instead of days.”

AI App BuildersMaker says so · source ↗
PromptURLsTurn any prompt into a shareable URL for ChatGPT, Claude

“Used for rapid prototyping — spinning up a full-stack app in minutes without any local setup. It's the fastest way to go from idea to working demo.”

AI App BuildersMaker says so · source ↗
Vibe Annotations10x your vibe-coding workflow writing visual annotations

“I couldn't have done Vibe Annotations without working at Bolt.new, constantly pushing for new workflow improvements. We're working every day to empower non-devs to create beautiful & production-ready applications in the most intuitive way. No doubting this will make history!”

AI App BuildersMaker says so · source ↗
We0.aiBuild your website. Grow your business.

“> Bolt.new stood out for bringing code generation, editing, and live preview into one browser workspace. That workflow inspired us while building WE0.ai, particularly how to shorten the path from describing an idea to seeing a working website.”

AI App BuildersMaker says so · source ↗
BARKOD studioTransform boring barcodes into beautiful brand assets

“Used for rapid prototyping and streamlining the initial development phase. It helped me iterate fast on the core logic of the web app.”

AI App BuildersMaker says so · source ↗
icebreakersA beautifully designed home for icebreaker questions.

“Generated the first version of the site and provided a beautiful framework to build off of.”

AI App BuildersMaker says so · source ↗
blakebillSend your files. No payment, no download.

“Absolutely — here’s a solid shoutout for Bolt.new, with a personal touch that mentions how you used it for BlakeBill: ⸻ ⚡ Huge shoutout to Bolt.new — this platform made it incredibly easy to bring my product, blakebill, to life. 🙌 I used Bolt to build a good part of blakebill, and honestly, the experience was seamless. The dev environment is lightning fast, the deployment process is effortless, and the built-in tools let me stay focused on creating rather than configuring. 🛠️💨 For anyone building a SaaS or launching a product solo — Bolt.new is a dream setup. You get scalability, speed, and smart defaults that actually make sense. No over-engineering, no config headaches — just clean, fast shipping. 🚀 Massive props to the team for putting out something that empowers builders like me. blakebill wouldn’t be live right now without it 🙏⚡”

AI App BuildersMaker says so · source ↗

What makers say

20 makers on why they use Bolt, in their own words on Product Hunt.

We chose Bolt.new because: • Execution speed: instant full-stack scaffolding • AI-native workflow: agent-based building instead of simple autocomplete • Modern stack compatibility: works well with Supabase and your SaaS architecture (Rankfender, Patrimexia) • Instruction-driven development: aligns with your preference for structured prompts over manual coding • Faster MVP iteration with lower friction and reduced token cost In short: execution velocity and leverage over traditional development overhead.
RankfenderSep 2026 ↗
We chose Bolt.new because: • Execution speed: instant full-stack scaffolding • AI-native workflow: agent-based building instead of simple autocomplete • Modern stack compatibility: works well with Supabase and your SaaS architecture (Rankfender, Patrimexia) • Instruction-driven development: aligns with your preference for structured prompts over manual coding • Faster MVP iteration with lower friction and reduced token cost In short: execution velocity and leverage over traditional development overhead.
RankfenderMar 2026 ↗
I couldn't have done Vibe Annotations without working at Bolt.new, constantly pushing for new workflow improvements. We're working every day to empower non-devs to create beautiful & production-ready applications in the most intuitive way. No doubting this will make history!
Vibe AnnotationsSep 2026 ↗
> Bolt.new stood out for bringing code generation, editing, and live preview into one browser workspace. That workflow inspired us while building WE0.ai, particularly how to shorten the path from describing an idea to seeing a working website.
We0.aiSep 2026 ↗
Bolt.new lets me prototype and iterate on API Radar’s UI and flows insanely fast—AI‑assisted scaffolding plus live preview means I can test ideas, fix UX issues, and ship improvements in hours instead of days.
APIRadarSep 2026 ↗

Loved and watch-outs

Themes that recur in makers' words and Hacker News comments, each linked to what it summarises, with how Product Hunt tags its reviews.

Most loved
  • Code generation, editing and live preview in one browser tab make it fast to go from idea to working demo with no local setup. PHHN
  • Auth, database and hosting come together in a day, and it pairs well with Supabase. PH
  • Strong at design, producing clean layouts and frontends when you have no idea where to start on UI. PHPH 2HN
Watch-outs
  • Apps tend to collapse after a few features beyond the initial scaffold, with bugs it cannot fix despite repeated attempts. HNHN 2HN 3
  • It burns tokens fast: one instruction can drain a million tokens on a small codebase. HN
  • Generated single-page apps expose little content to search engines and AI crawlers. HNHN 2
On Product Hunt 4.4★ · 47 reviews
no-code platform 15fast prototyping 14AI-generated web app 6effortless deployment 4framework support 2lightning-fast frontend design 2mvp creation 2seamless dev environment 2AI limitations 7token usage transparency 6customer support 3limited free access 3
Read the reviews on Product Hunt ↗

Reliability and open issues

Incidents on its status page25+ in the last 90 days · 25+ in the last year
  • minor Features → Prompting Degraded Sep 2026
  • minor Features → Prompting Degraded Sep 2026
  • minor Features → Prompting Degraded Sep 2026
From its own status page, 2026-10-02. Vendors decide what they post; one page can cover several products.

On Product Hunt, people weigh it against: Lovable, v0, Base44, Devin Desktop (formerly Windsurf), WeWeb.

Questions makers ask about Bolt

Which languages and frameworks can Bolt build with?

JavaScript-based ones. Any frontend framework that runs in the browser, with Node.js on the backend; PHP, Python and other non-JavaScript backends aren't compatible. source ↗

Can I build a mobile app?

Yes, through the Expo integration. Put "mobile app" in your first prompt so Bolt sets up an Expo-compatible project from the start. source ↗

Does Bolt work in Safari or on a phone?

It works, with gaps. In Safari the code view is read-only and previews are hosted instead of running in the browser; on mobile, code view, project settings, version history and the database aren't available. source ↗

What happens if my free site gets too much traffic?

Free hosting allows 10 GB of bandwidth and 333,333 requests a month with no way to raise it on that plan; past that, the site goes offline until the month ends. Free sites also show a "Made in Bolt" badge and can't use a custom domain. source ↗

Can I take my code out of Bolt?

Yes. Download the project as a zip to work on in your own editor, or connect a GitHub repository that Bolt commits to automatically, with branches. Code made with Bolt is yours, including for commercial use. source ↗

Can I switch from Supabase to Bolt Database later?

Not with a supported flow; there's currently no migration path from a Supabase database to Bolt Database. source ↗

Does Bolt have an API or CLI?

No. There's currently no public API, CLI or SDK for controlling Bolt from outside the product. source ↗

Is Bolt free?

Yes — there is a free tier a small product can run on; paid use starts at $25/mo. source ↗

Is Bolt open source or self-hostable?

Not open source, and hosted only.

Can AI coding agents work with Bolt?

No llms.txt, official MCP server or CLI found yet.

Who uses Bolt?

24 makers' products we track, each with a source. source ↗