What Is Zellij and How Does It Relate to Rust?

Updated

Zellij is a terminal workspace and multiplexer written in Rust—it is not the Rust programming language, a Rust toolchain, or a Rust-specific IDE. You can use Zellij with any shell and any language; Rust is simply the language it was built in. Choose Zellij if you want panes, tabs, and layouts inside one terminal window; skip it if you only need a single shell session and no session persistence.

What Zellij actually is

Zellij describes itself as a "Terminal Workspace with Batteries Included." In practice, it sits between your terminal emulator and your shell:

  • Terminal emulator: the window that draws text (e.g., the app you open on your desktop).
  • Shell: the program that reads commands (bash, zsh, fish, PowerShell).
  • Zellij: a multiplexer/workspace that runs shells and other programs inside panes, tabs, and reusable layouts.

So Zellij does not replace your shell. It manages multiple programs—including shells—inside one terminal window.

Why "written in Rust" matters (and what it doesn't mean)

Zellij's site lists Rust among its keywords and presents Zellij as a terminal workspace. The Rust connection is about implementation, not usage:

  • You do not need Rust installed to download or try Zellij.
  • Rust is not a prerequisite for configuring or using panes, tabs, or layouts.
  • Cross-platform availability is shown directly on the site: Linux, macOS, and Windows downloads are offered.
  • Performance and reliability are reasonable expectations from a compiled systems language, but the site's page evidence does not publish benchmarks—treat speed claims as general, not measured.

If your actual goal is learning Rust, Zellij is not a learning tool. It is a terminal workspace you might happen to run cargo commands inside.

How to try or install it

The site provides both downloads and a no-install trial. The trial commands, as listed on zellij.dev:

For bash/zsh:

bash <(curl -L https://zellij.dev/launch)

For fish:

bash (curl -L https://zellij.dev/launch | psub)

For PowerShell:

irm https://zellij.dev/launch.ps1 | iex

What happens: the command fetches and runs a launch script, starting Zellij without a permanent install. Expected result: you land in a Zellij session where you can open panes and tabs. Verification: confirm you can create a second pane and switch between them, then exit the session.

Common sticking points:

  • Running the trial script executes remote code—review the linked script first if that matters in your environment.
  • The fish syntax differs from bash/zsh; using the wrong one fails at the shell level, not inside Zellij.
  • For a lasting setup, use the Linux, macOS, or Windows download links rather than the trial script.

Free, open source—and one paid service

Zellij states it is free and open source. The maintainers also run a paid hosted session sharing service, currently in beta. That means:

  • The core terminal workspace is free and open source.
  • Session sharing hosted by the maintainers is a separate paid offering in beta.
  • The page evidence does not list prices, so check the site for current terms before relying on the hosted service.

Is it worth using?

Use Zellij if you want a multiplexer with built-in layouts and a workspace feel, and you value a single cross-platform tool for Linux, macOS, and Windows. It is a poor fit if you need only one shell tab, or if you were looking for Rust language tooling—in that case, look at the Rust toolchain instead.