WebView2 rendering
Full Chromium engine supporting modern web platform standards and frameworks
foo_ui_webview2foobar2000 WebView2 UI Component
Build custom foobar2000 interfaces with HTML, CSS, and JavaScript
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400+ APIs
Comprehensive coverage across playback, playlists, library, artwork, and window control
Mica & DWM effects
Native Windows 11 Mica backdrop, Acrylic blur, and rounded corner styling
Bidirectional realtime bridge
Low-latency C++ ↔ JavaScript messaging with immediate event push
CUI/DUI panels
Run standalone or embed seamlessly into Columns UI and Default UI layouts
Multi-window system
Popup panels, cross-window Port messaging, and safe asynchronous close lifecycles
SMP compatibility layer
Run Spider Monkey Panel scripts via a cache+event model wrapping async APIs as synchronous properties — 8 wrapper classes plus fb/plman objects