Build stunning apps
in Pure Python

Structure of Streamlit × Performance of React
Violit adopts a Fine-Grained State Architecture for instant reactivity,
unlike Streamlit's Full Script Rerun.

Start Building $ pip install violit

app.py

import violit as vl

app = vl.App(title="My App")

app.text("Hello, Violit!")

with app.card():
    count = app.state(0)
    app.button("Click", on_click=lambda: count.set(count.value + 1))
    app.text(count)  # Reactive!

app.run()

Why Violit?

Everything needed for modern apps

Violit combines the simplicity of Python scripts with the power of modern web architecture.

Zero Learning Curve

Syntactically similar to Streamlit but architecturally superior. If you know Python, you're already a Violit expert.

Ultra-Fast Speed

Fine-grained updates ensure charts react in real-time without stuttering, even with high-frequency data.

Optimization by Design

❌ No @cache, @fragment
Manual optimization is unnecessary thanks to the smart architectural design.

True Reactivity

Use app.state() for automatic dependency tracking. No complex callbacks or wiring required.

Hybrid Runtime

Supports WebSocket (Low Latency), Lite (HTTP/Scale), and even Async execution modes.

Native Desktop App

Turn your web app into a perfect desktop application without Electron using the simple --native flag.

Pixel-Perfect Styling

30+ Professional Themes built-in. Customize every pixel with CSS classes and inline styles.

70+ Rich Widgets

From simple inputs to complex DataGrids, Charting, Media, and Chat interfaces. Production-ready.

No Key Management

❌ No Unique Keys Required
Violit handles component identity automatically during updates.

Live Demo

Try it yourself

Reactive state, instant updates, no page reload.

Reactive Counter

CURRENT COUNT

− Decrease

+ Increase

count = app.state(0)
app.text(count)  # Auto-updates!

def inc(): count.set(count.value + 1)
app.button("+", on_click=inc)

Live Calculator

Drag the sliders — the result updates instantly.

TOTAL

30 + 70 = 100

a = app.slider("Value A", 0, 100, 30)
b = app.slider("Value B", 0, 100, 70)

# Combine states and strings directly
app.text(a + " + " + b + " = " + (a + b))

Dynamic Greeting

👋 Hello, Developer!

Welcome to Violit Framework

name = app.text_input("Your name", value="Developer")

# Use lambda for complex HTML interpolation
app.html(lambda: f'''
    <div style="font-size: 2.5rem; font-weight: 700;">
        👋 Hello, <span style="background: linear-gradient(135deg, #ec4899, #f97316);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;">
            {name.value}
        </span>!
    </div>
''')

Made with 💜 by the Violit Team

Faster than Light, Beautiful as Violet.

70+

Widgets

15+

Themes

<50ms

Update Latency

JS Required

Ready to build something amazing?

Get started in minutes. No build step, no configuration.
Just Python.

Get Started Free Read the Docs

Violit

Build beautiful web apps in Pure Python.
Open source. MIT License.

💎 Built with Violit

Build stunning apps in Pure Python