AI full-stack Next.js app builder for indie founders and developers who want an exportable production codebase.
Massvai is an AI full-stack Next.js app builder for indie founders and developers. Describe a product in a prompt and an AI coding agent builds a production-ready Next.js 15 TypeScript Tailwind app with live preview, Supabase auth and database, Stripe, GitHub sync, and one-click Vercel deploy. You own and can export the code. Built for real SaaS, internal tools, and web apps that need an exportable codebase rather than a locked sandbox.
OpenAI's general assistant for writing, coding, images and research; strong free tier, paid plans for heavier use.
Strong open-weight Chinese model with a free chat app; very capable at reasoning and code.
Run one prompt on GPT Image and Nano Banana side by side and keep the best; daily free credits, one-time credit packs.
Check whether an image is AI-generated with multi-engine scores and heatmaps; 5 free checks a day without an account.
Deep analysis of a server's SSL/TLS setup.
Puter's MIT-licensed monorepo of 50+ open-source web apps rebuilding Excel, Slack, Photoshop, AutoCAD, Salesforce and more, most with a live demo you can try in the browser.