WRAC Plugin Template

⚠️ Currently in pre-release testing for the official launch.

• Feedback is welcome via issues, discussions, DM, email, or any other means.
• The scope is currently intentionally limited to acquaintances and stakeholders.
• Official launch is planned for early May 2026. Your shares and support at that time would be greatly appreciated!

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A template for implementing audio plugins with the WRAC stack. You can copy this repository as a starting point for new projects.

日本語版: README_JA.md

What is the WRAC Stack?

The WRAC stack is a technology stack for audio plugin development, built around three core components: Webview, Rust Audio, and CLAP.

W (WebView): User interface implementation using HTML/CSS/JS.

RA (Rust Audio): Audio signal processing implementation in Rust.

C (CLAP): Interface with host applications via the CLever Audio Plug-in standard.

Contents

The code in this repository implements a simple plugin called WRAC Gain. It is also structured so it can be used as a template.

• WebView GUI implementation using wxp
• CLAP plugin implementation in Rust using clap-sys
• VST3 and AU plugin builds via clap-wrapper

Build

cargo xtask build
cargo xtask build --release
cargo xtask build --target=vst3
cargo xtask build --target=au,standalone
cargo xtask validate
cargo xtask install

cargo xtask build builds every target supported by the current OS: CLAP/VST3/AU/standalone on macOS, CLAP/VST3/standalone on Windows, and CLAP on Linux. Use build --target with a comma-separated list of clap, vst3, au, and standalone to build a smaller set. install and uninstall accept plugin formats only: clap, vst3, and au.

Plugin artifacts are staged under target/wrac/plugins/<profile>/, and standalone apps are staged under target/wrac/standalone/<profile>/. On macOS, cargo xtask validate runs the VST3 validator and auval -v aufx WtGn YrCo. AU validation installs the built component under ~/Library/Audio/Plug-Ins/Components/ and fails if the same bundle exists under /Library/Audio/Plug-Ins/Components/.

Setting Up a New Project

To create a new wxp plugin based on this repository, see Setup.

Give it a spin?

This template comes with a simple Gain plugin pre-implemented. Try loading it up and let us know how it works in your DAW! Even a quick comment like "Works on Logic Pro 10.7" is incredibly helpful for the community.

Feel free to drop a quick note here: 👉 DAW Compatibility Reports

Reference

For usage of the wxp crate, see the wxp README.

For known DAW compatibility status, see the DAW Compatibility Matrix.