True .ipynb
Open, edit, and save Jupyter notebooks without conversion. Keeps cell outputs and markdown intact.
Free AI-powered IDE·Windows · macOS · Linux
No browser.
No server.
Just Python.
Kalonji is a lightweight desktop notebook for Python. No browser, no server, no friction. Open .ipynb, pick your conda env, and run — with persistent sessions, inline plots, and markdown that just works.
- Jupyter .ipynb compatible
- Persistent kernel · Conda & venv
- Inline plots, tables & errors
Download Kalonji
Enter your details to get the installer. You’ll be redirected to the releases page instantly.
md
# Quick demo — persistent session, inline output, no server.
py
# pick your env in the sidebar → Start kernel
import numpy as np, matplotlib.pyplot as plt
x = np.linspace(0, 4*np.pi, 200)
plt.plot(x, np.sin(x)); plt.show()↳ output
Figure — sine wave rendered inline
py
df.head() # tables render as HTMLEverything you need.
Nothing you don’t.
Kalonji strips the notebook down to its essence — fast startup, familiar shortcuts, and full control over your environment.
Persistent sessions
Your kernel stays alive between runs. Variables, imports, and plots persist until you restart.
Conda & venv
Pick any Python interpreter from the sidebar — system, conda env, or virtualenv. No PATH hacks.
Start writing Python
without the setup tax.
Download Kalonji, select your interpreter, and hit Start kernel. That’s it.
Get Kalonji — free →