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Livebook
Livebook is an interactive notebook for Elixir where you write code alongside rich Markdown prose, execute it cell by cell with reactive dependency tracking, and deploy finished notebooks as standalone web applications with a single click. Nearly 6,000 GitHub stars reflect the Elixir core team's investment in a platform where code cells run on demand alongside Mermaid diagrams and KaTeX mathematical formulas. The Kino visualization library renders Vega-Lite charts, interactive data tables with sorting and pagination, Leaflet maps, and Mermaid diagrams directly within notebook output cells, while custom Kino components enable building interactive controls with sliders, text inputs, and buttons that feed values back into running code. Smart cells abstract high-level tasks into configurable UI widgets: query PostgreSQL, MySQL, SQLite, and BigQuery databases, train machine learning models with Axon, plot charts, and build map visualizations without writing boilerplate code. Real-time collaboration lets multiple users edit the same notebook simultaneously with cursor presence indicators and synchronized cell evaluation. Notebooks are stored as .livemd files, a Markdown-compatible format that renders cleanly on GitHub and integrates with standard version control workflows. Custom runtimes connect Livebook to existing Elixir applications for live introspection and documentation of running systems. The Docker image at ghcr.io/livebook-dev/livebook exposes ports 8080 and 8081 with password or token authentication. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.
Benefits
- Smart Cell Automation Widgets
- Configure database queries, chart visualizations, map layers, and machine learning training through graphical UI widgets that generate executable Elixir code, eliminating boilerplate while remaining fully editable.
- Real-Time Multi-User Collaboration
- Multiple users edit the same notebook simultaneously with cursor presence indicators, synchronized cell evaluation, and shared runtime state — no additional setup or external tools required.
- Deploy Notebooks as Web Apps
- Convert any notebook into a standalone web application with authentication via the Application pane, generating a production Docker image with one click for deployment on any container platform.
- Version-Control-Friendly .livemd Format
- Notebooks are stored as .livemd files — Markdown-compatible documents with embedded code, Mermaid diagrams, and KaTeX formulas that render on GitHub and diff cleanly in standard version control.
Features
- Kino Data Visualization
- Render Vega-Lite charts, interactive data tables with sorting and pagination, Leaflet maps, and Mermaid diagrams directly within notebook output cells.
- Database Smart Cells
- Query PostgreSQL, MySQL, SQLite, and BigQuery databases through visual Smart cell widgets that generate and execute Elixir database connection code automatically.
- Custom Runtimes
- Connect to existing Elixir applications, remote nodes, or standalone runtimes for live introspection, debugging, and documentation of running production systems.
- Rich Code Editor
- CodeMirror-powered editor with Elixir autocompletion, inline documentation, code formatting, syntax highlighting, and keyboard shortcuts for rapid notebook authoring.
- Reproducible Execution
- Deterministic cell evaluation order with automatic dependency tracking, stale cell annotation, and built-in package management via Mix.install for reproducible results.