Beautiful UIs in Rust. Cross-platform. Dead simple.

Website · Docs · Examples

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Ply is an engine for building apps in Rust that run on Linux, macOS, Windows, Android, iOS, and the web. One codebase, every platform. GPU-accelerated rendering, text editing, styling, accessibility, shaders, networking, sound and more, made easy and fast.

cargo install plyx
plyx init

What you get

ui.element().width(grow!()).height(grow!())
  .background_color(0x262220)
  .corner_radius(12.0)
  .layout(|l| l.direction(TopToBottom).padding(24))
  .children(|ui| {
    ui.text("Hello, Ply!", |t| t.font_size(32).color(0xFFFFFF));
  });

Everything is an element. Builder pattern, closure-based children, one import. Read the docs →

Highlights

• Layout engine: Flexbox-like sizing, padding, gaps, alignment, scrolling, floating elements
• Text input: Cursor, selection, undo/redo, multiline, password mode, keyboard shortcuts
• Rich text styling: Inline colors, wave, pulse, gradient, typewriter, fade, works in inputs too
• Shaders: GLSL fragment shaders, built-in effects, SPIR-V build pipeline
• Accessibility: AccessKit on desktop, JS bridge on web. Screen readers, keyboard nav, focus rings, tab order, live regions
• Debug view: Chrome DevTools-style inspector. One line: ply.set_debug_mode(true)
• Networking: HTTP + WebSocket, polling-based, never blocks the UI, works everywhere
• Images & vectors: PNG, TinyVG vectors, render_to_texture, procedural vectors
• Rotation: Visual (children included) and shape (vertex-level)
• Sound: WAV/OGG playback, volume control, looping
• Interactivity: ui.hovered(), ui.pressed(), ui.focused() inline, callback events, ID-based queries

Platforms

Feature flags

Examples

See the interactive examples on the website:

• Shader Playground (207 lines): live GLSL editor with code highlighting
• Snake (295 lines)
• Todo List (242 lines)

License

Zero-Clause BSD. Use it for anything. No attribution required.