Zellij

Zellij is a modern, Rust-powered terminal workspace — a multiplexer in the tmux/screen lineage, but with a radically friendlier UX, floating and stacked panes, a WebAssembly plugin system, and a built-in web client. We rate it 89/100 — the best default terminal multiplexer for developers who want tmux-class power without the configuration cliff.

What is Zellij?

Zellij is an open-source terminal multiplexer maintained by zellij-org and lead developer Aram Drevekenin (imsnif). It is written entirely in Rust, licensed under MIT, and has accumulated 31,800+ GitHub stars since its first public release. The current version at time of writing is v0.44.1, shipped on April 7, 2026.

The problem Zellij sets out to solve is the same one tmux and GNU screen have solved for decades — persistent terminal sessions, pane splitting, detach/reattach — but with three crucial differences: every keybinding is visible on screen (no opening the man page at 2am to remember prefix syntax), layouts are declarative KDL files you can check into a repo, and plugins are WebAssembly modules you can write in any language that compiles to WASM.

Key Features of Zellij

• Floating and stacked panes: Panes can be tiled, floated (Alt+F), or stacked (Alt+S) — the stacked mode lets you keep a dozen related terminals in one visual slot and flip between them with a single keystroke.
• Built-in web client: Run zellij web --start and any session becomes reachable over HTTPS with authentication — share a live terminal with a teammate without SSH or tmate.
• WebAssembly plugin system: Plugins are compiled to wasm32-wasip1, sandboxed by default, and can be written in Rust, Go, Python (via componentize-py), or any other WASM-capable language. The first-party SDK is in Rust.
• Declarative KDL layouts: Describe a workspace (this tab gets an editor and a three-pane terminal split, that tab runs docker logs in a floating pane) in a single file, then launch it with zellij -l my-layout.kdl. No more running six commands every morning.
• Session resurrection: Exit or crash your session and Zellij restores the exact pane layout, scrollback, and working directories on reattach — something tmux only handles with the tmux-resurrect plugin.
• Scrollback in $EDITOR: Hit a binding and your terminal output opens in Vim, Helix, or whatever you have configured — the most underrated feature in the entire multiplexer category.
• True multiplayer: Two or more users can attach to the same session with independent cursors — actual collaboration, not just screen-sharing a single view.
• Clickable file paths: Zellij parses terminal output and turns src/main.rs:42:8-style paths into clickable links that jump to the line in your editor.

What Users Say About Zellij

Developer sentiment on Reddit (r/commandline, r/rust) and Hacker News skews strongly positive. The recurring praise centers on the discoverable UI — beginners can get productive in under 10 minutes because every keybinding is drawn at the bottom of the screen, which is the single largest objection to tmux removed. The floating-pane feature also comes up constantly; one popular comment on r/rust described it as "the feature I didn't know I needed until I had it."

The honest complaints, in order of frequency: (1) higher baseline memory than tmux — roughly 60–90 MB for a session versus 15–25 MB for tmux, because Zellij ships its own rendering engine and plugin runtime; (2) smaller plugin ecosystem than tmux's decade of TPM packages, so niche features like statusline widgets often need to be built yourself; and (3) some key combinations differ from tmux enough that muscle-memory refactoring is real. The Ghostty and WezTerm crowds tend to praise Zellij; tmux power-users with 1,000-line config files tend to stay where they are.

Zellij Pricing

Zellij is free and open source under the MIT license — every feature, all platforms, unlimited use, no telemetry. There is no paid tier, no seat cap, and no enterprise edition. The project is funded through GitHub Sponsors and corporate sponsorship from G Research and Terminal Trove.

Plan	Price	What You Get
Open source	$0	Full feature set, all platforms (macOS, Linux, Windows, FreeBSD), plugin system, web client, unlimited sessions — no restrictions

Who Should Use Zellij?

Best for: Developers who live in the terminal but have never invested the weekend it takes to become truly fluent in tmux, teams that want a shared, reproducible terminal workspace via checked-in KDL layouts, and anyone who wants floating panes or a web client without piling on third-party plugins. Rust and systems engineers especially will appreciate the aesthetic and the native performance.

Not ideal for: Veteran tmux users with a working, tuned configuration and thousands of hours of muscle memory — the gains from switching don't pay back the retraining cost. Also a poor fit for very memory-constrained environments (512 MB VPS, tiny Raspberry Pi) where tmux's lower footprint matters.

Pros and Cons

Pros:

• Near-zero learning curve — visible keybindings remove the #1 objection to terminal multiplexers
• Floating and stacked panes are unique in this category
• Built-in web client ships with HTTPS + auth and works without any third-party tunnel
• WASM plugin system is language-agnostic and sandboxed
• Declarative layouts make team workflows reproducible and version-controlled
• MIT license, no telemetry, no enterprise upsell

Cons:

• Memory usage 2–4× tmux for equivalent sessions
• Plugin ecosystem is still a fraction of tmux's decade-deep catalogue
• Windows support, while native, still lags macOS/Linux on a handful of features
• Not all keybindings are muscle-memory-compatible with tmux

Alternatives to Zellij

The main alternatives are tmux (the classic, lower RAM, huge plugin catalogue, but steep learning curve), GNU screen (older, simpler, less feature-rich), and WezTerm's multiplexer (baked into the WezTerm terminal emulator — great if you already use WezTerm, less useful if you don't). Users also sometimes compare it to Ghostty, but Ghostty is a terminal emulator rather than a multiplexer — you can run Zellij inside Ghostty.

Verdict: Is Zellij Worth It?

Yes, for anyone who wants a terminal multiplexer in 2026 and is not already a tmux expert. Zellij gives you roughly 95% of tmux's power with 10% of the onboarding effort, plus floating panes, a web client, and WASM plugins that tmux simply cannot match. The only group that should skip it is veteran tmux users whose existing config is already doing the job — there's no reason to disturb a working setup. For everyone else, Zellij is the new default. We rate it 89/100.

Frequently Asked Questions

Is Zellij free?

Yes. Zellij is fully free and open source under the MIT license — every feature, every platform, no paid tier, and no telemetry.

What platforms does Zellij support?

macOS, Linux, FreeBSD, and Windows (native support added in recent releases). It also ships a built-in web client, so any modern browser can attach to a remote session over HTTPS.

How does Zellij compare to tmux?

Zellij is easier to learn (visible keybindings, friendlier defaults), adds floating and stacked panes, a web client, and WASM plugins. Tmux uses less memory (~15 MB vs ~60 MB per session) and has a larger, older plugin ecosystem. Pick Zellij if you're new; stay on tmux if you're already fluent.

Is Zellij open source?

Yes — MIT licensed, with all source code at github.com/zellij-org/zellij. There is no closed-source enterprise edition.

Can Zellij run without installation?

Yes. Running bash <(curl -L https://zellij.dev/launch) downloads and launches a portable binary without touching your system, which is the recommended way to try it before installing.