Full-stack Python apps in a single file

Write Python. Get a web app. No JavaScript, no build step, no framework to learn. Your code runs on the server with full CPython -- instant live updates over WebSocket.

Start Building See Demo

app.py

from gux import ui, db, page

# Persistent SQLite -- just works
db.execute("CREATE TABLE IF NOT EXISTS notes (id INTEGER PRIMARY KEY, text TEXT)")

@page("/")
def home():
    ui.header("My App")

    with ui.card():
        notes = db.query("SELECT * FROM notes")
        for note in notes:
            ui.text(note["text"])

        def add(val):
            db.execute("INSERT INTO notes (text) VALUES (?)", [val])
            page.navigate("/")

        ui.input(placeholder="New note...", on_enter=add)

⚡

Zero Config

No webpack, no npm, no build step. Write a .py file and it's live. Hot reload on save.

🔌

Full Python

Your code runs in CPython on the server. Use pip packages, f-strings, everything. No subset limitations.

📂

Built-in SQLite

Every app gets its own persistent database. db.execute() and db.query() -- that's the whole API.

🌐

Pages & Routing

@page("/users/:id") with path params, query strings, and client-side navigation. Multi-page apps in one file.

🔐

Isolated Per App

Each app runs in its own sandbox with its own database. Your data never touches other apps.

🚀

Instant Deploy

Every app gets a subdomain. yourapp.siteplatform.app is live the moment you hit Run.

How it works

Write Python

Use the browser editor or push code. Components like ui.card(), ui.button(), ui.input() build your UI.

Hit Run

Your code executes server-side. UI updates stream to the browser over WebSocket in ~5ms.

Share the URL

Your app is live at yourapp.siteplatform.app. No deploy pipeline, no CI/CD. It's just there.