Massvai
Massvai is an AI full-stack app builder for Next.js, TypeScript, Tailwind CSS and Supabase. From a plain-language prompt or reference screenshot, its coding agent plans the architecture, writes exportable TypeScript code with a live HMR preview, wires Supabase authentication and database flows, syncs the repository to GitHub and deploys to Vercel.
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About Massvai
Massvai is listed in our app builders category and is aimed at people who want a ready-to-use product. Massvai is an AI full-stack app builder for Next.js, TypeScript, Tailwind CSS and Supabase. From a plain-language prompt or reference screenshot, its coding agent plans the architecture, writes exportable TypeScript code with a live HMR preview, wires Supabase authentication and database flows, syncs the repository to GitHub and deploys to Vercel. Pricing, as the maker states it: Free $0 (no card, 100 welcome credits, live preview, code export); Builder $25/month (1,500 credits/month, GitHub and Vercel deploy); Pro $49/month (4,000 credits/month, Supabase setup, version history); 20% off yearly. Maturity: Active. We last checked the official link on 2026-10-24.
What is Massvai?
Massvai is an AI full-stack application builder available in the browser and as a macOS desktop app that turns a plain-language brief or reference screenshot into a working Next.js 15, TypeScript and Tailwind CSS codebase. Before writing code, Massvai maps out the page structure, navigation and data flows, then renders changes in a live hot-module-reload preview as you iterate by chat.
Unlike mock-only UI generators, Massvai wires real backend flows with Supabase authentication and database tables, and lets you export the standard Next.js repository at any time with no vendor lock-in. Paid plans add one-click GitHub repository sync, Vercel production deployment, custom preview domains and full version history with rollback.
Sources: massvai.com and our directory listing, checked 2026-10-24.
Who is Massvai for?
Founders, product designers and developers who want to go from a prompt or screenshot to an exportable Next.js + TypeScript + Supabase web app with GitHub sync and Vercel deployment.
Massvai at a glance
- Status: Active on Web Studio (app.massvai.com) and native macOS desktop app (Apple Silicon & Intel)
Key features
- Generates standard Next.js 15, TypeScript and Tailwind CSS projects with live HMR preview and full code export on every tier.
- Wires Supabase authentication, database schemas and backend API routes alongside the frontend UI.
- Accepts reference screenshots and multi-step chat edits with version history and one-click rollback.
- Available both in the browser at app.massvai.com and as a native macOS app for Apple Silicon and Intel Macs.
Massvai pricing
- Free: $0 · 100 welcome credits, live HMR preview, full Next.js/TypeScript code export, no card
- Builder: $25/month · 1,500 credits/month, GitHub sync, one-click Vercel deployment, custom preview domains
- Pro: $49/month · 4,000 credits/month, Supabase setup assistance, version history and priority build queue
Annual billing discounts plans by 20%.
Source: official pricing page, checked Oct 24, 2026. Prices change; check the source before buying.
Massvai FAQ
What is Massvai?
Massvai is an AI full-stack application builder available in the browser and as a macOS desktop app that turns a plain-language brief or reference screenshot into a working Next.js 15, TypeScript and Tailwind CSS codebase. Before writing code, Massvai maps out the page structure, navigation and data flows, then renders changes in a live hot-module-reload preview as you iterate by chat.
Who is Massvai for?
Founders, product designers and developers who want to go from a prompt or screenshot to an exportable Next.js + TypeScript + Supabase web app with GitHub sync and Vercel deployment.
Is Massvai free?
Yes. Massvai has a free option (Free), according to its pricing page (checked Oct 24, 2026).
How much does Massvai cost?
As of Oct 24, 2026, Massvai's official pricing page lists: Free: $0; Builder: $25/month; Pro: $49/month. Annual billing discounts plans by 20%.
Can I export the code Massvai generates?
Yes. Every plan, including the Free tier, exports a standard Next.js 15 + TypeScript + Tailwind CSS codebase that you can run locally or host anywhere.
What does Massvai cost?
The Free tier is $0 with 100 welcome credits, live preview and code export (no credit card required). Builder is $25/month (1,500 credits/month, GitHub and Vercel deploy) and Pro is $49/month (4,000 credits/month, Supabase setup assistance and version history), with 20% off on yearly billing.
What are alternatives to Massvai?
Similar tools include Bolt, InsForge, Replit Agent, Base44, Onlook and Puter AI Builder.
Massvai ratings and reviews
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Massvai alternatives
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Replit Agent
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Base44
AI app builder that turns a plain-language idea into a working web app with database, login and hosting included.
Onlook
An open-source visual editor for React and Tailwind apps where you design on a canvas and an AI agent writes the code. Edit layouts like in Figma, then export clean code to your own repo.
Puter AI Builder
Puter AI Builder turns a plain-language description into a working app or website that can be published to a real URL, with no code; it is an open-source alternative to Lovable, Replit and v0 from the team behind Puter.
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