ratatui is a Rust library to build rich terminal user interfaces and dashboards. It is a community fork of the original tui-rs project.

cargo add ratatui --features all-widgets

Or modify your Cargo.toml

[dependencies]
ratatui = { version = "0.21.0", features = ["all-widgets"]}

Ratatui is mostly backwards compatible with tui-rs. To migrate an existing project, it may be easier to rename the ratatui dependency to tui rather than updating every usage of the crate. E.g.:

[dependencies]
tui = { package = "ratatui", version = "0.21.0", features = ["all-widgets"]}

ratatui is a terminal UI library that supports multiple backends:

• crossterm [default]
• termion
• termwiz

The library is based on the principle of immediate rendering with intermediate buffers. This means that at each new frame you should build all widgets that are supposed to be part of the UI. While providing a great flexibility for rich and interactive UI, this may introduce overhead for highly dynamic content. So, the implementation try to minimize the number of ansi escapes sequences generated to draw the updated UI. In practice, given the speed of Rust the overhead rather comes from the terminal emulator than the library itself.

Moreover, the library does not provide any input handling nor any event system and you may rely on the previously cited libraries to achieve such features.

The following example demonstrates the minimal amount of code necessary to setup a terminal and render "Hello World!". The full code for this example which contains a little more detail is in hello_world.rs. For more guidance on how to create Ratatui apps, see the Docs and Examples. There is also a starter template available at rust-tui-template.

fn main() -> Result<(), Box<dyn Error>> {
    let mut terminal = setup_terminal()?;
    run(&mut terminal)?;
    restore_terminal(&mut terminal)?;
    Ok(())
}

fn setup_terminal() -> Result<Terminal<CrosstermBackend<Stdout>>, Box<dyn Error>> {
    let mut stdout = io::stdout();
    enable_raw_mode()?;
    execute!(stdout, EnterAlternateScreen)?;
    Ok(Terminal::new(CrosstermBackend::new(stdout))?)
}

fn restore_terminal(
    terminal: &mut Terminal<CrosstermBackend<Stdout>>,
) -> Result<(), Box<dyn Error>> {
    disable_raw_mode()?;
    execute!(terminal.backend_mut(), LeaveAlternateScreen,)?;
    Ok(terminal.show_cursor()?)
}

fn run(terminal: &mut Terminal<CrosstermBackend<Stdout>>) -> Result<(), Box<dyn Error>> {
    Ok(loop {
        terminal.draw(|frame| {
            let greeting = Paragraph::new("Hello World!");
            frame.render_widget(greeting, frame.size());
        })?;
        if event::poll(Duration::from_millis(250))? {
            if let Event::Key(key) = event::read()? {
                if KeyCode::Char('q') == key.code {
                    break;
                }
            }
        }
    })
}

In response to the original maintainer Florian Dehau's issue regarding the future of tui-rs, several members of the community forked the project and created this crate. We look forward to continuing the work started by Florian 🚀

In order to organize ourselves, we currently use a Discord server, feel free to join and come chat! There are also plans to implement a Matrix bridge in the near future. Discord is not a MUST to contribute. We follow a pretty standard github centered open source workflow keeping the most important conversations on GitHub, open an issue or PR and it will be addressed. 😄

Please make sure you read the updated contributing guidelines, especially if you are interested in working on a PR or issue opened in the previous repository.

Since version 0.21.0, The Minimum Supported Rust Version (MSRV) of ratatui is 1.65.0.

The documentation can be found on docs.rs.

The demo shown in the gif above is available on all available backends.

# crossterm
cargo run --example demo
# termion
cargo run --example demo --no-default-features --features=termion
# termwiz
cargo run --example demo --no-default-features --features=termwiz

The UI code for the is in examples/demo/ui.rs while the application state is in examples/demo/app.rs.

If the user interface contains glyphs that are not displayed correctly by your terminal, you may want to run the demo without those symbols:

cargo run --example demo --release -- --tick-rate 200 --enhanced-graphics false

More examples are available in the examples folder.

The library comes with the following widgets:

• Canvas which allows rendering points, lines, shapes and a world map
• BarChart
• Block
• Calendar
• Chart
• Gauge
• List
• Paragraph
• Sparkline
• Table
• Tabs

Each wiget has an associated example which can be found in the examples folder. Run each examples with cargo (e.g. to run the gauge example cargo run --example gauge), and quit by pressing q.

You can also run all examples by running cargo make run-examples (requires cargo-make that can be installed with cargo install cargo-make).

• ansi-to-tui — Convert ansi colored text to tui::text::Text
• color-to-tui — Parse hex colors to tui::style::Color
• rust-tui-template — A template for bootstrapping a Rust TUI application with Tui-rs & crossterm
• simple-tui-rs — A simple example tui-rs app
• tui-builder — Batteries-included MVC framework for Tui-rs + Crossterm apps
• tui-clap — Use clap-rs together with Tui-rs
• tui-log — Example of how to use logging with Tui-rs
• tui-logger — Logger and Widget for Tui-rs
• tui-realm — Tui-rs framework to build stateful applications with a React/Elm inspired approach
• tui-realm-treeview — Treeview component for Tui-realm
• tui tree widget — Tree Widget for Tui-rs
• tui-windows — Tui-rs abstraction to handle multiple windows and their rendering
• tui-textarea: Simple yet powerful multi-line text editor widget supporting several key shortcuts, undo/redo, text search, etc.
• tui-rs-tree-widgets: Widget for tree data structures.
• tui-input: TUI input library supporting multiple backends and tui-rs.

Check out the list of close to 40 apps using ratatui!

You might want to checkout Cursive for an alternative solution to build text user interfaces in Rust.

Special thanks to Pavel Fomchenkov for his work in designing an awesome logo for the ratatui project and tui-rs-revival organization.

MIT