What is Base44, and how does it work?
Base44 is an AI app builder, owned by Wix, that turns prompts into working apps with a database, login and hosting. How it works, what it builds and what it's built on.
8 min read
Base44 is an AI app builder. You describe the app you want in plain language, and Base44 builds the whole thing: pages, a database, user login, permissions and hosting, plus integrations like email and payments. It’s owned by Wix, which acquired it in June 2025. Under the hood, a Base44 app is a standard React app with a Base44-hosted backend.
For whether it’s any good, see the Base44 review. This post covers what it is and how it works.
How Base44 works
- You describe the app. Start from a prompt, a template, a Figma import, an existing GitHub repository, or a migration from another platform such as Lovable, Bolt.new, WordPress or Shopify.
- The AI builds it. Base44 creates the pages, the data tables (Base44 calls them entities), login and permissions, and wires in any integrations you asked for. You can use Plan mode to settle the design first.
- You refine it. Keep prompting, edit visually on the canvas, or change the code directly. Each AI change uses message credits.
- You publish. The app goes live at a
base44.appaddress or your own domain, and Base44 hosts it, including a sitemap, social previews and pre-rendered pages for search crawlers on custom domains.
What Base44 can build
- Web apps with accounts, data and workflows: CRMs, booking tools, dashboards, portals, marketplaces.
- Websites for businesses, with templates for trades like roofing, salons, restaurants and fitness.
- AI agents inside your app, and standalone assistants Base44 calls Superagents.
- Mobile apps, packaged for the App Store and Google Play as a native wrapper around your web app. See Base44 mobile apps.
What it’s built on
| Layer | On Base44 |
|---|---|
| Frontend | React + Vite, Tailwind, JavaScript |
| Routing | One file per page in src/pages |
| Data | Entities defined by JSON schemas, stored by Base44 |
| Login | Base44 authentication: email and password, Google, Microsoft, Facebook, Apple, SSO on Elite |
| Server logic | Backend functions in TypeScript on Deno |
| SDK | @base44/sdk, connecting the frontend to the backend |
| Built-in services | SendEmail, UploadFile, InvokeLLM, GenerateImage and more |
| Hosting | Managed by Base44 |
Because the frontend is ordinary React code, developers can export it, sync it to GitHub and edit it in their own tools. The backend is the part that stays on Base44. See the migration guide.
Who owns Base44
Wix announced its acquisition of Base44 in June 2025, in a press release describing it as a hyper-growth vibe-coding startup. Reporting at the time put the price at about $80 million plus earn-outs. Base44 was founded by Maor Shlomo, who built it without outside funding. Since the acquisition, Base44 has added Wix-powered features such as Base44 Payments powered by Wix and domain purchases through Wix, and it keeps its own brand and product.
What it costs
There’s a free plan with 25 message credits a month. Paid plans start at $16 a month billed annually, and most serious apps need the Builder plan at $40. The pricing guide has the details.
How Base44 compares
Base44’s closest rivals are Lovable, Bolt.new and Replit, with coding agents like Claude Code and Cursor on the developer end. The biggest difference is that Base44 hosts its own backend, where Lovable builds on Supabase and coding agents work on whatever stack you choose. See Base44 vs Lovable and the alternatives guide.
What to do next
- Try the free plan with a small, specific app idea.
- Read the review for the strengths and weak spots.
- If you’re building a public site, read the Base44 SEO guide early.
Frequently asked questions
- What is Base44 used for?
- Building web apps, websites and AI agents from plain-language prompts. Common uses include internal tools, customer portals, dashboards, SaaS prototypes, booking and directory apps, and small business websites. It can also package apps for the App Store and Google Play.
- Who owns Base44?
- Wix. Wix announced its acquisition of Base44 in June 2025, for about $80 million plus performance-based earn-outs. Base44 was founded and bootstrapped by Maor Shlomo.
- What language does Base44 use?
- Base44 apps are React apps built with Vite, written in JavaScript, with Tailwind for styling. Backend functions are TypeScript running on Deno. The app talks to its backend through the Base44 JavaScript SDK.
- Do I need to know how to code to use Base44?
- No. You describe what you want and the AI builds it, and you can edit visually. Developers can also edit the code in the Code tab, sync it to GitHub, or use the Base44 CLI and their own coding agents.
- Does Base44 own my app?
- No. Base44's pricing FAQ says you own everything you build. On the Builder plan you can export the frontend code. The backend services it uses, such as the database and login, run on Base44.
Read next
Keep going
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Base44 review (2026): what it's good at and where it breaks
An independent Base44 review for 2026: what it builds well, what the plans cost, how credits work, how its SEO holds up on 47 live sites, and who should pick something else.
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Base44 pricing (2026): every plan and what it unlocks
Base44 pricing for 2026: Free, Starter, Builder, Pro and Elite prices, monthly vs annual, message and integration credits, and which plan each feature needs.
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Base44 vs Lovable (2026): backend, pricing, code and SEO
Base44 vs Lovable in 2026: where each hosts your backend, how credits and pricing differ, code export, GitHub, SEO rendering and which one suits which kind of app.
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Is Base44 safe and legit? Security, data and ownership
Is Base44 legit and safe to build on? Its SOC 2 and ISO 27001 status, how data is protected, who owns your app, and the security settings you must get right yourself.