Open-source mutation testing tool that asks an LLM to mutate your code and reports how many mutants your tests catch.
Open source
Bolt.new
Browser-based AI app builder from StackBlitz: chat to build websites, web apps and mobile apps, then host them with Bolt Cloud.
What is Bolt.new?
Bolt.new, usually called Bolt, is an AI builder that turns a chat prompt into a working website, web app, mobile app or prototype. It runs entirely in the browser on StackBlitz WebContainers, so nothing needs to be installed and it behaves the same on Windows, Mac and other systems. Bolt Cloud supplies hosting, custom domains, databases with authentication, server functions and file storage, and analytics, while Supabase, Netlify and Stripe can be connected for external infrastructure and payments. Mobile apps use the Expo integration, version history saves a copy after each prompt, and Plan Mode lets you map out a build before any code is written. Teams can import a design system from GitHub, private npm registries or Storybook. Bolt offers a free plan with 1M tokens per month, Pro at $18/month, Teams at $27/month per member, and custom Enterprise contracts. Developers, founders, designers and product teams use it to go from idea to published site quickly.
Use cases
- Build a website from a chat prompt
- Prototype a web app without setup
- Create a mobile app with Expo
- Add sign-up and login to an app
- Publish a site on a custom domain
- Share team design systems with the agent
- Deploy a project to Netlify or Supabase
Who it's for
Why use Bolt.new
- Nothing to install: open a browser, describe what you want and get a running preview.
- Hosting, domain, database and authentication live in one place, so there is little infrastructure to set up.
- The free plan has no card requirement, so you can test the builder before paying.
- Pro adds your own domain, rolling tokens and newer AI models, and removes Bolt branding.
- Teams and Enterprise add shared billing, access controls, SSO and design system knowledge.
Bolt.new features
- Chat-based builder for websites, web apps and prototypes
- Runs in the browser on WebContainers with no install
- Bolt Cloud hosting with free bolt.host URLs
- Custom domains with automatic SSL
- Built-in database, authentication, server functions and file storage
- Mobile app building through the Expo integration
- Plan Mode and version history after every prompt
- Stripe, Supabase and Netlify connections
- Team prompts, package prompts and private NPM registries
- Forge agent with open-source models for more usage
Bolt.new integrations
How to get started with Bolt.new
- Open bolt.new and describe the site, app or prototype you want in the chat.
- Bolt generates the project and shows a live preview in the browser.
- Refine with follow-up prompts, using Plan Mode for bigger changes and Version History to roll back.
- Add a database, login, payments or a mobile target through built-in Bolt Cloud features and connectors.
- Click Publish to host on a bolt.host address, or connect your own domain on a paid plan.
Bolt.new limitations
- Free plan has a 300K daily token limit and a 1M monthly token cap with no rollover
- Free-plan sites show Bolt branding and cannot use custom domains
- Free hosting is capped at 10 GB bandwidth and 333,333 web requests per month, then the site goes offline
- Bolt has no public API, CLI or SDK
- Subscriptions are non-refundable
Bolt.new pricing
Yes, Bolt.new has a free plan. Paid plans start at $18 per month, according to the official pricing page on .
Bolt.new plans
Free
$0/month
Free forever, no card required
- 1M tokens/month
- Public and private projects
- Bolt branding on websites
- Unlimited databases
- Website hosting
Pro
$18/month
$216/year
- Your own domain, no Bolt branding
- 10M tokens/month with rollover
- Expanded database capacity
- Connectors and MCPs
- Access to the newest AI models
Teams
$27/month
$324/year
- Everything in Pro
- Centralized billing
- Team-level access management
- Private NPM registries support
- Priority support
Enterprise
Custom
Custom annual contract, billed by consumption
- SOC 2 Type II, SSO and data governance
- Unlimited tokens priced by consumption
- Dedicated infrastructure and account manager
- 24/7 support
Plans as listed on the official pricing page on . Prices can change and may vary by country or exclude tax. Check the official pricing page.
Bolt.new alternatives
The main Bolt.new alternatives listed on Debuly are Lovable, v0, Replit, Base44, Cursor and Anything. The table compares pricing and platforms; order is A–Z.
| Tool | Pricing | Starting price | Platforms |
|---|---|---|---|
| Bolt.new | Freemium | $18/mo | Web |
| Anything | Paid | $19/mo | Web, iOS, Android |
| Base44 | Freemium | $16/mo | Web |
| Cursor | Freemium | $8/mo | CLI, iOS, Web, API |
| Lovable | Freemium | — | Web, API |
| Replit | Freemium | $18/mo | Web |
| v0 | Freemium | $30/mo | Web, API |
Anything
AI app builder where you chat to build web and mobile apps with database, auth, payments and hosting included.
Base44
No-code AI app builder: describe an app or website in plain language and get a working version with backend and hosting.
FreemiumVisit Base44 (official site)
Cursor
AI code editor and coding agent with cloud agents, Bugbot code review and multi-provider models, sold with Grok and X plans.
FreemiumVisit Cursor (official site)
Lovable
AI software engineer that builds websites and web apps from a chat conversation, with hosting, a backend and code you own.
FreemiumVisit Lovable (official site)
Replit
Browser-based platform where Replit Agent builds, hosts and publishes apps, sites and more from plain-language descriptions.
FreemiumVisit Replit (official site)
v0
Vercel's AI app builder that turns prompts into Next.js and React interfaces you can edit, sync to GitHub and deploy.
FreemiumVisit v0 (official site)
Bolt.new FAQ
How much does Bolt.new cost?
Free is $0/month, Pro is $18/month (listed as $216 per year, down from $300), and Teams is $27/month (listed as $324 per year, down from $360). Enterprise is a custom annual contract billed by consumption.
Is there a free plan for Bolt.new?
Yes. The Free plan is free forever with no card required. It includes 1M tokens per month, a 300K daily limit, public and private projects, unlimited databases and website hosting.
What plans does Bolt.new have?
Free, Pro, Teams and Enterprise. Pro adds your own domain, 10M tokens per month with rollover and newer models. Teams adds centralized billing, team access management and priority support.
Does Bolt.new have an API?
No. The Bolt FAQ says it has no public API, CLI or SDK for controlling it from outside the product.
Can I build a mobile app with Bolt.new?
Yes. Bolt builds mobile apps through its Expo integration. Put mobile app in your first prompt so the project is set up for Expo.
What are alternatives to Bolt.new?
Alternatives for prompt-to-app building include Lovable, v0 by Vercel, Replit, Base44, Cursor and Windsurf.
Sources & verification
Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.
| Source | Type | Accessed |
|---|---|---|
| bolt.new/ | official | |
| bolt.new/pricing | pricing | |
| support.bolt.new/account-and-subscription/team-plans | pricing | |
| support.bolt.new/reference/faq | docs | |
| bolt.new/get-started | official | |
| support.bolt.new/account-and-subscription/bolt-forge | docs |
Image credits
- Logo: from bolt.new · fetched · Vendor trademark, used only to identify the product; removed on request
- Cover: from bolt.new · fetched · Vendor marketing image from the official site; removed on request
Spot an error? Report an issue with this listing. We also remove a logo or image on the owner's request.
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