JupyLite

Screenshots

Real screenshots from JupyLite — all three themes, multi-tab, and font settings

Light Theme — Single Notebook

Light theme with TOC sidebar, Jupyter-style In [N]: labels, markdown rendering

Multi-Tab — Multiple Notebooks

Open multiple .ipynb files as tabs — single instance, no new windows

Rosé Pine Theme

Default Rosé Pine dark theme with syntax highlighting

Dark Theme

GitHub-style dark theme with blue accents

Font Settings

Font settings modal — app font, code font, UI font size

Features

Everything you need to view Jupyter Notebooks beautifully

Full App Zoom — Three Ways

Zoom the entire application interface — every element scales together, not just text.

Ctrl + = zoom in • Ctrl + − zoom out • Ctrl + 0 reset

Ctrl + Scroll Up to zoom in • Ctrl + Scroll Down to zoom out

Menu → View → Zoom In / Zoom Out / Actual Size

Multi-Tab Support

Open multiple .ipynb files as tabs in one window. Double-click another file — opens as a new tab, never a new window.

3 Beautiful Themes

Rosé Pine (dark), Dark, and Light. Switch instantly from sidebar dots or Ctrl+Shift+1/2/3.

Find in Notebook

Real-time search with highlighted matches across all cell types — code, markdown, and output. Press Ctrl+F.

Full App Zoom

Zoom the entire interface with Ctrl+= / Ctrl+− or Ctrl+Scroll. Zoom level persists between sessions.

Syntax Highlighting

highlight.js powers 190+ language highlighting. Jupyter-style In [N]: and Out [N]: labels just like classic Jupyter.

Rich Outputs

Renders PNG/JPEG/SVG images, DataFrames, HTML tables, matplotlib plots, stderr streams, and error tracebacks.

Math Rendering

KaTeX renders inline $...$ and block $$...$$ LaTeX equations across all markdown cells.

Font Customization

Independently set app font family & size, code font family & size, and UI font size (menubar, sidebar, tabs).

Auto-generated from markdown headings. Resizable sidebar — drag the handle to your preferred width, saved between sessions.

Drag & Drop

Drop any .ipynb file onto the window. Drop multiple files to open them all as separate tabs at once.

Copy Code

Hover any code cell to reveal a copy button. Copies the full cell source to clipboard with a single click.

Cross-Platform

Native builds for Windows (.exe .msi), Linux (.deb .AppImage .rpm .snap .pacman), and macOS (.dmg).

Themes

Three carefully crafted themes — switch with Ctrl+Shift+1 / 2 / 3 or sidebar dots

🌸 Rosé Pine Default

Warm dark theme with soft purple, pink and teal accents. Easy on eyes for long sessions.

🌑 Dark

GitHub-style dark theme with blue accents. Familiar and focused for developers.

☀️ Light

Clean white theme for bright environments. High contrast and easy to read.

Installation

Download and install for your platform from the Releases page

🐧

Linux — AppImage

Any distro, no install needed

chmod +x JupyLite-1.0.0.AppImage && ./JupyLite-1.0.0.AppImage

🐧

Linux — Debian / Ubuntu / Kali

.deb package

sudo dpkg -i jupylite_1.0.0_amd64.deb

🐧

Linux — Fedora / RHEL

.rpm package

sudo dnf install jupylite-1.0.0.x86_64.rpm

🐧

Linux — Arch / Manjaro

.pacman package

sudo pacman -U jupylite-1.0.0.pacman

🪟

Windows

.exe NSIS installer or .msi

Run JupyLite Setup 1.0.0.exe and follow the installer

🍎

macOS

.dmg disk image

Open JupyLite-1.0.0.dmg → drag to Applications

Set as default app for .ipynb files (Linux)

bash install-icon-dev.sh

Keyboard Shortcuts

Work faster with these shortcuts

Action	Shortcut
Open Notebook	`Ctrl+O`
Close Tab	`Ctrl+W`
Find in Notebook	`Ctrl+F`
Find Next	`Enter`
Find Previous	`Shift+Enter`
Font Settings	`Ctrl+Shift+F`
Zoom In	`Ctrl+=` or `Ctrl+Scroll Up`
Zoom Out	`Ctrl+−` or `Ctrl+Scroll Down`
Reset Zoom	`Ctrl+0`
Theme: Rosé Pine	`Ctrl+Shift+1`
Theme: Dark	`Ctrl+Shift+2`
Theme: Light	`Ctrl+Shift+3`
Toggle Fullscreen	`F11`
Reload	`Ctrl+R`
Developer Tools	`Ctrl+Shift+I`

Build from Source

Get up and running in minutes — requires Node.js v18+

Clone the repository

Clone and enter the project directory

git clone https://github.com/msjahid/jupylite.git && cd jupylite

Install dependencies

Downloads Electron and electron-builder

npm install

Run in development

Opens the app with hot reload

npm start

Build distributable

Outputs to dist/ folder

npm run build:linux

npm run build:win

npm run build:mac

Author

Jahid Hasan

@msjahid

MS in Data Science • Kaggle Grandmaster (top 0.1%) • CLEF 2025 NLP researcher • Full-stack developer with 6+ years experience. Building beautiful tools for the data science community.

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