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Automate code & data workflows with interactive notebooks

Get rid of scripts, manual steps, and outdated docs. Use Elixir and Livebook to share knowledge, deploy apps, visualize data, run machine learning models, debug systems, and more!

Outline

Basic usage

Sections

Branching sections

Saving notebooks

Keyboard shortcuts

Autocompletion

Markdown extensions

Erlang support

Evaluation vs compilation

Running tests

Next steps

Welcome to Livebook

Using🍯My Hubworkspace

Basic usage

Livebook is a tool for crafting interactive and collaborative code notebooks.

Each notebook consists of a number of cells, which serve as primary building blocks. There are Markdown cells (such as this one) that allow you to describe your work and Code cells to run your Elixir code!

To insert a new cell move your cursor between cells and click one of the revealed buttons. 👇

Evaluate

# This is a Code cell - as the name suggests that's where the code goes.
# To evaluate this cell, you can either press the "Evaluate" button above
# or use `Ctrl + Enter` (or Cmd + Enter on a Mac)!

message = "hey, grab yourself a cup of 🍵"

Evaluated

Amy

Jake

"hey, grab yourself a cup of 🍵"

Subsequent cells have access to the bindings you've defined:

Evaluate

String.replace(message, "🍵", "☕")

Evaluated

"hey, grab yourself a cup of ☕"

Note however that bindings are not global, so each cell sees only stuff that goes above itself. This approach helps to keep the notebook clean and predictable as you keep working on it.

Install Livebook in just a minute

Livebook is open source, free, and ready to run anywhere.

Run on your machine

with Livebook Desktop

Mac (arm64)Mac (x64)Windows Linux (arm64)Linux (x64)

Run in the cloud

on select platforms

Run on Hugging Face

To run on Linux, Docker, embedded devices, or Elixir’s Mix, check our README.

Do more with Livebook

Notebooks mix prose, code, and rich output. Livebook supercharges them with awesome features:

Interactive insights

Visualize your data using charts, tables, maps, and diagrams. Then add inputs and controls to make it all interactive.

Connect to

PostgreSQL

Assign to

conn

Hostname

localhost

Port

5432

Database

shop

User

postgres

Password

DATABASE_PASSWORD

Query

conn (PostgreSQL)

Assign to

result

select * from orders join users on users.id = user_id

Explore and automate

Use Smart cells to perform high-level tasks and write notebooks faster than ever! Join our growing community to learn and master new workflows, from database queries to Machine Learning models.

Collaborate as a team

Write code, analyze results, and document your findings together, in realtime.

Evaluate

defmodule Formulas do
  import Nx.Defn

  defn softm

  defn sigmoid(x) do
    1 / (1 + Nx.exp(-x))
  end

  defn relu(x) do
    Nx.m
  end
end

Stale*

Amy

Jake

ƒmap/2

ƒmap/3

ƒmax/2Nx.max(left, right)

ƒmean/1

ƒmean/2

ƒmin/2

ƒmultiply/2

{:module, Formulas, <<70, 79, 82, 49, ...>>, {:relu, 1}}

ins

Reproducible workflows

Run your code in a predictable order, all the way down to package management. Livebook also tracks your notebook state, annotating which parts are stale.

Productivity at your fingertips

Livebook's code editor supports autocompletion, inline documentation, code formatting, and more. Plus keyboard shortcuts throughout the notebook.

@@ -1,6 +1,6 @@

# Introduction to Nx

- ## Elixir Nx

+ ## Numerical Elixir

Elixir's primary numerical datatypes and

structures are not optimized for numerical

programming. Nx is a library built to bridge

that gap

⁘

@@ -21,7 +21,7 @@ ## Numerical definitions

Write once, read anywhere

Notebooks are stored as .livemd files, a subset of Markdown that meshes together prose, code, and diagrams. Livebooks are easy to read, share, and version within your existing tooling.

Integrations

Livebook comes with built-in integrations with Elixir, Python, data sources, data visualization libraries, authentication providers, and more!Browse Integrations