FNJ is listed first because it's ours; the rest are ordered by how closely they match what Base44 does.
01FNJ AI website builder
Made by usBest for: a marketing site you want to own as code
Responsive marketing websites: business sites, portfolios, landing pages and product marketing sites.
Designs every page from your description plus a screenshot, a link or your brand files, on a visual canvas at desktop, tablet and phone widths.
- Free plan
- No free plan. There's no trial either. The Site Pack is $29 once for 50 credits that never expire, about three complete sites of up to 10 pages.
- Paid plans from
- $29 once, or $25/month
- Code export
- Full code export. A Next.js App Router project or static HTML, downloaded or pushed to a branch of your own GitHub repository, on every plan.
- Hosting
- Host anywhere. FNJ doesn't host sites. Put the export on Cloudflare Pages, Vercel, Netlify or any host, with no FNJ runtime in the code.
Good at
- +Designs from references: screenshots, links or your own brand files
- +Desktop, tablet and phone layouts designed together, with real flex and grid
- +You keep the code: plain Next.js or HTML with no FNJ runtime
Watch out for
- −Marketing sites only: no forms, store, log-ins, databases or blog engine
- −No free plan or trial
- −You host the site yourself
02Lovable
Best for: full-stack web apps with a backend, database and log-ins, built from chat
Websites and full-stack web apps (frontend, backend, database, auth) built from chat prompts.
You describe what you want in chat and Lovable generates a working app with frontend, backend, database, authentication and integrations, backed by editable code.
- Free plan
- Free plan. Free plan: 5 build credits a day, capped at 30 a month, plus small monthly Cloud and AI grants. Apps can be published publicly on a lovable.app subdomain. No custom domain, no code editing or code download, and the Edit with Lovable badge cannot be removed. Git sync is included. Lovable may unpublish Free projects after 12 months without visits or owner logins.
- Paid plans from
- $25/month billed monthly, or $250/year billed annually (Pro, 100 credits, USD)
- Code export
- Full code export. Two-way Git sync (GitHub, GitLab, Bitbucket) on all plans; codebase download as a .zip on paid plans. New apps (from May 13, 2026) use TanStack Start; older apps use React + Vite. Export excludes database data and uploaded files, which are exported separately; the built-in backend can move to managed or self-hosted Supabase.
- Hosting
- Their hosting is optional. Lovable hosts published apps, but Lovable says apps can be hosted anywhere. An exported app runs without a Lovable subscription once it no longer calls Lovable services.
Good at
- +Generates full-stack apps (backend, database, auth) from chat
- +Git sync on every plan, including Free
- +Documented path to move code and backend off Lovable
Watch out for
- −Code download, code editing and custom domains need a paid plan
- −Free plan capped at 30 build credits a month
- −Exports exclude database data and uploaded files
03Bolt
Best for: apps and websites built by chat, with hosting and a database in one place
Websites, web apps and prototypes built by chatting with AI, with built-in hosting and database (Bolt Cloud).
You describe a website or app in plain words and Bolt's AI builds it; modes include website, app and prototype, and you can start from Figma or GitHub.
- Free plan
- Free plan. Free $0: public and private projects, 300K tokens daily limit and 1M tokens a month, website hosting on a bolt.host address (about 10 GB bandwidth and 333,333 requests a month, hard limit), Made in Bolt badge on previews and published sites. Custom domains are a Pro feature.
- Paid plans from
- $25 per month billed monthly (Pro)
- Code export
- Full code export. Download the whole project as a zip (Export > Download) and run it locally with Node.js (npm install && npm run dev). GitHub integration backs up the project and syncs commits.
- Hosting
- Their hosting is optional. Bolt Cloud hosting is built in; Bolt also documents publishing to Netlify, and code synced to GitHub can be published with another service.
Good at
- +Full project download as a zip
- +GitHub sync for backup and outside editing
- +Hosting, domains and database included in one place
Watch out for
- −Free plan shows a Made in Bolt badge and has no custom domain
- −Free sites go offline when monthly hosting limits are hit
- −Usage is metered in tokens (1M a month on Free)
04Replit Agent
Best for: building and publishing full apps, with databases, from plain-language prompts
Web and mobile apps, plus designs, slides and other artifacts, built and published from plain-language prompts.
Replit Agent turns plain-language ideas into apps and other artifacts; paid plans add Full build (more autonomous) and Plan Mode, while Starter gets Lite build.
- Free plan
- Free plan. Starter plan (free): daily Agent credits up to a monthly cap, Lite build only, one free published app that goes down after 30 days, Made with Replit badge. Third-party connectors (including Stripe) and Plan Mode need Core.
- Paid plans from
- $18/month billed annually, or $20/month billed monthly (Core)
- Code export
- Full code export. Any project can be downloaded as a zip from the file tree, and the Git tool supports two-way sync with GitHub. Databases and web addresses do not copy over automatically; workspace admins can ban source code export.
- Hosting
- Their hosting is optional. Replit publishes apps (Autoscale, Static, Reserved VM) with usage billed in credits; downloaded code can run elsewhere.
Good at
- +Agent builds and publishes full apps, including databases
- +Zip download and two-way GitHub sync
- +Stripe payments via a connector or your own keys
Watch out for
- −Free published app goes down after 30 days and shows a badge
- −Hosting and databases are billed by usage
- −Starter is limited to Lite build; connectors need Core
05v0
Best for: Next.js apps and interfaces for teams already working on Vercel
Full-stack web apps on Next.js, including landing pages, dashboards, e-commerce sites and internal tools.
v0 generates UI and backend logic from chat prompts, screenshots, mockups or Figma designs, using Next.js, React, TypeScript, Tailwind CSS and shadcn/ui.
- Free plan
- Free plan. Free $0/month: deploy apps to Vercel, visual editing in Design Mode, GitHub sync, 7 messages a day. New users get a one-time $5 credit offer; existing Free users keep a $5 monthly allowance.
- Paid plans from
- $30/user/month (Plus)
- Code export
- Full code export. Code can be exported to work locally, and a bi-directional GitHub integration syncs changes. Vercel says it does not own the generated code. GitHub sync is listed on the Free plan.
- Hosting
- Their hosting is optional. Publish deploys to Vercel; v0 says you can still export code and deploy elsewhere, though environment variables, deployments and previews expect a connected Vercel project.
Good at
- +Generates standard Next.js, React and Tailwind code
- +Bi-directional GitHub sync, including on Free
- +Imports Figma designs, screenshots and existing repos
Watch out for
- −Free plan limited to 7 messages a day
- −Publishing is built around Vercel; Vercel's free Hobby plan is for non-commercial personal use only
- −Paid plans are priced per user
06GoDaddy Airo AI Builder
Best for: a hosted site or simple web app with a database, in one account with your domain
Websites, online stores, portfolios and web apps such as booking systems, directories, marketplaces, client portals and dashboards.
Builds a full-stack site or web app (pages, copy, images, database and backend) from a conversation in any language; you refine it by chatting, editing yourself, or editing the generated code.
- Free plan
- Free plan. Free start with 50 AI credits a month, no credit card. GoDaddy's pricing guides say the free plan is build-and-preview only and publishing needs a paid plan. Plan credits expire each billing cycle.
- Paid plans from
- Not clearly published
- Code export
- Full code export. All paid plans include code download: the project saves as a ZIP of files and code (Settings > Download Project). GoDaddy's features page says the export is the full source in React, TypeScript and Tailwind.
- Hosting
- Their hosting is optional. GoDaddy hosting, SSL and deployment are included with each plan; GoDaddy says downloaded files can be re-imported to Airo or used with other hosting products.
Good at
- +Builds web apps with a database and backend, not only pages
- +Code download on all paid plans
- +Hosting, custom domain, payments and support in one account
Watch out for
- −Publishing needs a paid plan, per GoDaddy's pricing guides
- −AI credits are capped per plan and don't roll over
- −Free plan cannot connect a custom domain