Open IPYNB files in your browser
The notebooks of data science: code, its results and the words around them. Open an IPYNB right here as Jupyter shows it. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your notebook opens as Jupyter shows it, with nothing in it running.
- Markdown and math • Code in color
- Charts and tables as saved • Pictures open on their own
- Notebook, Tree or Text
- Export • Save as a script, as HTML or without outputs
About IPYNB
IPython's notebook came out in 2011 and became Project Jupyter in 2014, named for Julia, Python and R. A notebook is a list of cells: Markdown for the words and math, code for a kernel to run, and below each code cell what it printed, drew or returned.
An .ipynb file is JSON, with every output saved inside it: charts as PNG or SVG, tables as HTML, errors with their colors. That makes a notebook a report anyone can read, as long as they have Jupyter or an app that draws it.
Filepeek draws the notebook as Jupyter does, with nothing in it running: Markdown and math, code in color with each cell's count, tables, errors and charts as they were saved, each picture opening in the image viewer. Export saves it as a script, without outputs or as HTML, and Tree shows the JSON.
Jupyter Notebook
.ipynb
Format
- MIME type
- application/x-ipynb+json
- Made by
- Project Jupyter, once IPython
- Released
- 2011
Inside the file
- Cells
- Markdown, code and raw
- Outputs
- Text, tables, pictures and errors
- Markup
- JSON
- Written by
- Jupyter, VS Code, Colab and Kaggle
Opens in every browser
Browsers download notebooks or show their JSON. Filepeek draws them as Jupyter does in Chrome, Edge, Firefox and Safari, with no Jupyter to install.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Questions
How do I open an IPYNB file without Jupyter?
Drop it on this page or choose Peek an IPYNB. It opens as Jupyter shows it, with its outputs as they were saved.
Does the code run?
No. Nothing in the notebook runs, so it shows what the code printed and drew when it was last run. An interactive chart shows its saved picture, or its data in the tree.
Can I turn a notebook into a Python script?
Yes. Choose Export, then Save as Python script. The code cells come in order, with the Markdown as comments.
How do I strip a notebook's outputs?
Choose Export, then Save without outputs. Every output and count is cleared and the rest of the file stays as it was.
Is my file uploaded?
No. The file opens inside your browser and never leaves your device.