Pulp Documentation¶

Pulp is a cross-platform framework for building audio plugins and applications. MIT-licensed. No royalties. No copyleft.

What is supported today¶

Formats: VST3, AU v2, AUv3, CLAP, LV2, WAMv2, WebCLAP, standalone, headless
Platforms: macOS, Windows (WASAPI, NSIS), Linux (ALSA, JACK, LV2), Browser (WASM)
Audio: CoreAudio, WASAPI, ALSA, JACK, Web Audio API — device I/O, buffer processing, file read/write
MIDI: CoreMIDI, Win32 MIDI, ALSA MIDI, MIDI 2.0 UMP, MPE; Web MIDI is scaffolded but not wired into shipped WASM builds
DSP: 30+ signal processors (oscillator, biquad, SVF, ladder, FIR, TPT, compressor, reverb, delay, chorus, phaser, FFT, convolver, and more)
Parameters: thread-safe, automatable, serializable, with CLAP modulation, presets, undo/redo
GPU rendering: Dawn (Metal/D3D12/Vulkan) + Skia Graphite on all platforms
View system: TextEditor, ComboBox, TabPanel, ListBox, TreeView, and more — flex layout, JS scripting, hot-reload
Plugin hosting: PluginScanner, PluginSlot, SignalGraph for DAW-like apps
Testing: coverage tracked per-subsystem, per-platform, and per-surface on macOS, Linux, and Windows — see Test Coverage
Shipping: codesign, notarization, DMG/PKG (macOS), NSIS (Windows), .deb (Linux), appcast

Getting Started — build your first plugin step by step
Examples — browse example projects by category
Sampler Playback Chooser — select sequential, shared paged, resident, instrument, tempo-matched, or analysis surfaces
Plugin hosting and analysis — host third-party plugins or inspect, render, and compare them
Capabilities — full capability matrix with status
Overview — what Pulp is and how it is organized

Processing Models — author a Processor (the default) vs. compose with SignalGraph, and what goes inside a node
Modules — 13 subsystems with status, dependencies, and key headers
Skills — the full catalog of AI-agent skills Pulp ships (Claude Code + Codex)
API Reference — Doxygen-generated class and function documentation
CLI Reference — pulp command reference
CMake Reference — pulp_add_plugin() and build system functions
Licensing & Acknowledgements — dependencies, standards, attribution
Architecture — subsystem dependencies, thread model, GPU stack

Building — requirements, options, platform notes
Testing — running tests, validation, writing tests
Hosting Plugins — embed CLAP, VST3, AU, and LV2 plugins in a Pulp application
Plugin Interrogation — inspect parameters and run automated A/B renders from the CLI or MCP
Sampler Playback Chooser — choose the sampler ownership and traversal model that matches the product
Web Plugins — WAMv2, WebCLAP, browser-host status
Design from Figma — the "Design for Pulp" plugin, export, and import (model)
Docs Maintenance — how docs stay consistent with code