Open IPYNB files online
IPYNB is the Jupyter Notebook format used in data science and research. The viewer renders Markdown cells, syntax-highlighted code, and outputs — text, tables and plot images — just like in Jupyter, with nothing uploaded.
Drop a IPYNB file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
Or turn IPYNB into an image — snapshot the preview, add arrows or notes, and download a PNG.
What is a IPYNB file?
IPYNB is the Jupyter Notebook format used in data science and research. The viewer renders Markdown cells, syntax-highlighted code, and outputs — text, tables and plot images — just like in Jupyter, with nothing uploaded. The .IPYNB extension identifies a Jupyter Notebook file, which is served with the application/x-ipynb+json media type. You can open it here instantly — drop the file into the box above and it renders in your browser. Nothing is uploaded.
Besides this free online viewer, you can open Jupyter Notebook files in desktop apps such as JupyterLab, VS Code, Google Colab — but here all you need is a web browser.
Quick facts
| Format | Jupyter Notebook — Jupyter Notebook |
|---|---|
| File extensions | .ipynb |
| MIME type | application/x-ipynb+json |
| Developer | Project Jupyter |
| Category | Text & markup |
| Also opens in | JupyterLab, VS Code, Google Colab |
How to open a IPYNB file online
- Click Choose file above, or drag your IPYNB file onto the box.
- The right viewer loads automatically and renders your file.
- Read, scroll or page through it. To open a different file, choose Open another file.
100% private — files never leave your browser.
Libraries used to render IPYNB in the browser
This viewer is built entirely with open-source JavaScript that runs in your browser:
Frequently asked questions
What is a .IPYNB file?
A .IPYNB file is a Jupyter Notebook, identified by the application/x-ipynb+json media type. You can open and read it instantly in the viewer above without installing anything.
What programs open IPYNB files?
On the desktop, IPYNB files typically open in JupyterLab, VS Code, Google Colab. Online, this page opens them in any modern browser — nothing to download.
How do I convert IPYNB to an image?
Use Snapshot to capture the IPYNB preview, optionally add arrows, text or highlights, then download it as a PNG image.
Is it safe to open my IPYNB file here?
Yes. The file is read and rendered entirely by JavaScript inside your own browser. It is never uploaded to a server, so nothing leaves your device.
Do I need to install anything to view a IPYNB file?
No. There is nothing to install and no account to create. Open the page, drop your file, and it displays instantly.
Does it work on my phone or iPad?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit, but very large files depend on your device’s memory. Big files are processed in the background so the page stays responsive.