About drafft-ink

Effortlessly self-host whiteboards. High-performance, cross-platform digital whiteboard with live collaboration built in Rust & WebGPU. Zero subscription, AGPLv3-licensed.

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patwie

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README.md

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Drafft.ink

An infinite canvas whiteboard built with Rust and WebGPU.

Try it now: drafft.ink — draw first, sign up never.

Cross-platform (Linux, Windows, macOS, browser, mobile). Real-time collaboration via CRDTs. No account required. Self-hostable with a single binary.

Features

Shapes and Drawing - Rectangles, ellipses, lines, arrows, freehand paths with pressure sensitivity
Smart Guides - Smart alignment snapping, equal spacing detection, angle snapping
Text - Multiple font families (GelPen, GelPen Serif, Vanilla Extract), per-character styling, inline LaTeX math
Images - Drag-and-drop, paste from clipboard, embedded in document
Collaboration - Real-time sync via Loro CRDT. Watch your colleagues draw boxes around things that don't need boxes.
Open Formats - Export to PNG or JSON. Import them back.
No Telemetry - We don't know what you're drawing, and frankly, we don't want to.
Touch Support - iPad and tablet friendly, gesture navigation
Sketch Style - Sketchy on purpose. Precise when it matters. Hand-drawn aesthetic via roughr and fonts

Installation

Desktop

git clone https://github.com/PatWie/drafft-ink.git
cd drafft-ink
cargo run --release

Or use the build script:

./build.sh --native

Web (Local)

./build.sh --wasm

Collaboration Server

cargo build --release -p drafftink-server
./target/release/drafftink-server

Listens on ws://localhost:3030/ws. One binary, no configuration files. Self-host it. Or don't. We're not your manager.

Architecture

crates/
  drafftink-core/     # Canvas state, shapes, CRDT sync, snapping logic
  drafftink-render/   # Vello-based GPU rendering, text layout (Parley)
  drafftink-app/      # Application logic, UI (egui), event handling
  drafftink-server/   # WebSocket collaboration server
  drafftink-widgets/  # Custom UI components

Philosophy

Your tools should work for you. No accounts, no paywalls, no telemetry, no "upgrade to Pro."

Contributing

PRs welcome. Issues welcome. The code is right here.

License

AGPLv3 - Use it, modify it, host it. Keep it open.

drafft-ink