The AI app builder that shows its work.
Describe the app you want — pages, data, features — and opix writes a real, full-stack Next.js application in front of you: files stream into a live workspace, a preview spins up in about two minutes, and every line of code is yours to keep.
Free welcome credits · no card required · failed builds cost $0
What an AI app builder should actually do
An AI app builder turns natural language into working software. You describe the product — “a booking tool for my studio with an admin view and email confirmations” — and the builder plans the pages, writes the code, wires the database, and hands you something you can click, test, and ship.
Most tools in the category get the first half right and quietly fail the second. The demo dazzles, then you hit the ceiling: code you can’t see, a database you don’t control, credits that vanish on failed generations, and an export that isn’t really an export. What you’re left with is a prototype you have to rebuild the day it matters.
opix was built against that ceiling. It generates idiomatic Next.js with TypeScript and Tailwind on a dedicated Postgres database that belongs to you, shows you the real cost of every build before and after it runs, and lets you export the repository to GitHub or eject to your own hosting at any point. It’s an AI app builder designed for the day after the demo.
From a sentence to a shipped app
Describe it
One sentence or a full spec. Attach up to four screenshots to match a look, or start in plan mode and approve the plan before a single credit is spent.
Watch it build
opix writes real files into a cloud sandbox, runs the dev server, and streams a live preview. You watch every file land — no black box, no waiting screen.
Refine and ship
Chat, paste a screenshot of what’s wrong, or click the exact element to change. Then publish to your-app.opix-app.com, connect a custom domain, or export the repo.
Built like a senior engineer, billed like a utility
Self-checking builds
Every generation is type-checked in the sandbox and smoke-tested at runtime. Errors are auto-repaired before you see them — 94% of first builds compile clean.
A meter, not a mystery
A live cost meter shows what every build costs. Set a hard spend cap per project and opix stops before the line, never after it.
Failed builds are free
Auto-fixes, type-check repairs and failed generations never burn credits. You pay for results you keep, not for the tool’s mistakes.
A real database, yours
Every app gets its own Postgres (Neon) with auth wired in. Not a shared table widget — a production database you can take with you.
AI features without keys
Say “add a chatbot” and opix wires a metered AI endpoint with a budget cap. No API keys to paste, no surprise bill at month’s end.
Exit is a feature
Version every change, restore any point, export to GitHub, eject to your own hosting. Lock-in is a business model — just not ours.
of first builds compile clean — type-checked and auto-repaired in the sandbox
from prompt to a live, clickable preview
for retries, auto-fixes and failed builds
Who builds with opix
Founders use it to get from idea to a working MVP in an afternoon — with auth, a database and payments through their own Stripe account — then iterate by describing changes instead of filing tickets.
Developers use it as the fastest honest scaffold: a Next.js App Router project in TypeScript they can open in the code view, edit by hand, and pull down to their own repo once the shape is right.
Agencies and freelancers ship client sites and tools on it because the meter makes budgets defensible: every build has a visible cost, and credit packs never expire between projects.
Asked before you asked.
Is opix free to try?+
Yes. Every new account gets one-time welcome credits — enough to build something real — with no card required, and verifying your email adds a few more. After that, plans start at $29/month, or one-time credit packs from $10 that never expire.
Do I need to know how to code?+
No. You describe what you want in plain language and opix plans, builds and repairs the app itself. If you do code, everything it produces is idiomatic Next.js and TypeScript you can open, read and edit by hand in the built-in code view.
What stack does opix generate?+
Next.js (App Router) with TypeScript and Tailwind CSS, on a dedicated Neon Postgres database with authentication wired in. It’s the stack many teams choose by hand — which is the point: nothing exotic, nothing proprietary.
Can I export my app?+
Completely. Export the repository to GitHub in one click or eject to your own hosting. The database is standard Postgres, so it moves with you. There’s no proprietary runtime and no export tax.
What can’t opix do?+
It won’t build native mobile apps, and heavy custom backends — real-time games, complex data pipelines — are still better written by hand. opix is at its best on full-stack web apps: sites, dashboards, SaaS tools, booking and admin systems.
How is opix priced?+
Plans from $29/month with a monthly credit allowance, plus one-time packs that never expire. A live meter shows the cost of every build, you can set a hard spend cap, and failed builds are always free.
Next.js app generator
The developer’s view: what opix generates, the gates every build passes, and the eject path.
Text to app
How to write prompts that build well — and the refine-by-pointing loop that follows.
AI app builder pricing compared
Lovable, v0, Bolt and opix side by side — how each one meters, with sourced numbers.
Describe your app. See it running.
Welcome credits are on us — no card, no subscription. Keep every line of code.