Overview #

Pulp is an MIT-licensed, cross-platform framework for building audio plugins and applications. C++20 at the core, GPU-rendered UIs via Dawn and Skia, JavaScript scripting with hot-reload, and tooling built for modern development workflows.

See VISION.md for the full architecture and design decisions. See Capabilities Reference for detailed per-feature status.

What It Does #

Plugin formats — VST3, AU v2, AUv3, CLAP, LV2, AAX, Standalone, WAM/WebCLAP
Platforms — macOS (primary), Windows, Linux, iOS, Web/WASM (experimental)
DSP — 30+ processors, thread-safe parameters, headless processing, Faust/Cmajor/JSFX integration
UI — GPU-rendered widgets, CSS Flexbox/Grid layout, design tokens, hot-reload, Three.js on native GPU
Design — import from Figma, Pencil, Stitch; AI-driven design tool; design token export
Tooling — pulp CLI for build/test/validate/ship, MCP server, local + cloud CI, Claude Code plugin
Shipping — code signing, notarization, DMG/PKG packaging, Sparkle auto-updates

How It's Organized #

Pulp is modular — each subsystem is an independent library under core/:

Subsystem	Purpose
`runtime`	Lock-free primitives, logging, assertions
`audio`	Audio device I/O, buffers, file I/O
`midi`	MIDI I/O, MIDI 2.0 UMP, MPE
`signal`	DSP processors, FFT, filters, effects
`state`	Parameters, presets, serialization, undo/redo
`format`	Plugin format adapters, standalone, headless
`canvas`	2D drawing (CoreGraphics, Skia), SVG
`render`	GPU surfaces (Dawn/Skia Graphite)
`view`	Widgets, layout, themes, JS scripting, hot-reload
`dsl`	Faust/Cmajor/JSFX integration
`ship`	Packaging, signing, auto-updates

Getting Started #

See the Getting Started guide.