Telex

A DX-first TUI framework for Rust

Read the Book Crates.io GitHub

Declare your UI, manage state with hooks

use telex::prelude::*;

struct App;

impl Component for App {
    fn render(&self, cx: Scope) -> View {
        let count = state!(cx, || 0);

        View::vstack()
            .child(View::text(format!("Count: {}", count.get())))
            .child(
                View::button()
                    .label("+")
                    .on_press(with!(count => move || count.update(|n| *n += 1)))
                    .build()
            )
            .build()
    }
}

fn main() {
    telex::run(App).unwrap();
}

What's in the box

Reactive State

Order-independent state! macro, effect! for side effects. channel!/port! for external events, interval! for timers, reducer! for state machines. No Arc, no Send bounds.

Rich Widgets

Text, TextInput, TextArea, Button, Checkbox, List, Table, Tree, Tabs, Modal, Menu, Form, Toast, Markdown, Split, Slider, and more.

Flexbox Layout

VStack, HStack, Box with flex, min/max constraints, percentage sizing. Split panes for resizable panels.

Focus Management

Tab navigation, modal focus containment, cursor navigation, initial focus. Indicators appear only on keyboard use.

Theming

14 built-in themes: Catppuccin, Dracula, Gruvbox, Nord, Tokyo Night, and more. One line to switch.

Unicode

Proper grapheme cluster handling. Emoji, CJK, and combining characters all render at correct widths.