AI Web App Builder
Mythex is an AI web app builder: describe what the app should do and it builds a working web application with a live preview, a real database and file storage, then publishes it to a public URL in one click. A web app is not a landing page; it has users and data that must survive a refresh, and that is what gets built.
Who it's for
Anyone whose idea needs to do something rather than say something: tools, portals, trackers, calculators and small products that real people sign in to and come back to. It fits non-developers who want a web app creator they can talk to, and developers who want the first working version before they open an editor.
What you can build
- A tool your team opens every morning instead of a shared spreadsheet
- A customer-facing app with accounts and saved records
- A configurator that prices an order and stores each request
- A searchable directory with a submit form and an approval queue
- An internal dashboard that reads your own data
What a web application builder has to handle
The screens are the easy part of a web application. The rest is what keeps it working when real people use it: a database schema, an API between the pages and the data, sign-in when users need their own records, file uploads that go to real storage, and a deploy that gives it an address. Mythex builds those layers from your description, shows the result in a live preview, and lets you open the code and the terminal whenever you want to see how it was done.
- Frontend and API in one project
- A database attached when the app has data to keep
- File storage for uploads
- Publishing to a public URL, with your own domain on Pro
From description to live web app
Start with who uses the app and what they need to get done. Mythex plans the screens and the data, writes the code and runs it while you watch. Click through the preview, then ask for changes in plain words: a new field, a filter, a different layout on phones. When the main flow works, press Publish and share the link. Each later Publish updates the same address, so your users always see the current version.
- Describe users, screens and data
- Check the build in the live preview
- Refine by chatting
- Publish and share the URL
Phones, domains and the code
A published Mythex app is a responsive web app, so it opens in any browser and can sit on a home screen. On Pro, the same app can become an Android app you can upload to Google Play and an iPhone app sent to TestFlight with your own App Store Connect key; both open your published app, so they update whenever you publish. Pro also adds a custom domain, code editing, export and GitHub sync.
A prompt to start from
Build a web app where users sign up, log in and manage their own records with a title, description, status and due date. Include a list with search and filters, a detail page, create and edit forms, and a dashboard that summarises records by status. Keep the data in a database and give it a layout that is comfortable on a phone.
Questions
Is there a free web app builder?
Mythex has a Free plan with no credit card: 5 credits a day (10 on your first day), unlimited projects, live preview and publishing. That is enough to build a first version of a web app and put it online.
How is a web app different from a website?
A website presents information; a web app keeps state. As soon as you need logins, saved records or anything that survives a refresh, Mythex attaches a database and builds the app around it instead of generating static pages.
What stack does Mythex build web apps with?
By default a Vite and React frontend with an API next to it, plus a Postgres database and file storage when the app needs them. You can ask for a Python or Node backend as a separate service instead.
Can a developer take the project over later?
Yes. It is a normal codebase with standard files and a real terminal. On Pro you can export it or sync it to GitHub and keep working in any editor.
Do I need to know how to code?
No. You describe what you want in plain language and Mythex writes the code, shows a live preview, and lets you change things by chatting. The code editor and terminal are there if you ever want them.
Do I have to explain my business every time?
No. Mythex remembers who you are and how you work across every project, and follows the standing notes you set for a project, so you are not re-briefing it in each new chat. You can read, edit or switch all of it off.
How much does it cost?
There is a Free plan with daily credits, enough to build and publish a first version. Pro is $25/month and adds full code editing, GitHub export, custom domains, and credit top-ups.
Templates to start from
- Sales Pipeline CRM Template — Drag-and-drop deals with forecasting
- Analytics Dashboard Template — KPI cards, charts, and activity table
- AI Moodboard Canvas Template — Drag-and-drop moodboards with notes
- Presentation Builder Template — Code-powered slide decks from prompts
- Metrics Dashboard Template — Governed metrics and self-serve charts
- Budget Dashboard Template — CSV import with variance analytics
- Customer Health Dashboard Template — Churn scoring with explainable charts
- Account Health Dashboard Template — Renewal view with risk scores
Guide
More ways to build with AI
- AI SaaS Builder for Your MVP
- AI Internal Tool Builder
- Prompt to App: Create an App With an AI Prompt
- Mobile App Maker: One Chat, Android and iPhone Apps
- AI App Maker: Describe Your App, Get One That Works
- AI Website Maker: From One Prompt to a Live Site
- AI Booking App Builder
- AI Restaurant Website Builder
- AI Portfolio Website Builder
- AI Online Store Builder
- AI Landing Page Builder
- AI Dashboard Generator