An open-source library of 936 interface sound effects, organised into 12 sonic personalities and 78 semantic cues like hover, press, success and error.
Why we recommend it
Interface sound is the last thing most product teams get to, and the usual options are a stock-audio subscription or a sound designer nobody budgeted for. This gives you a coherent, complete set for free, and the CC0 audio licence means you can ship it commercially without attribution.
Strengths
- Genuinely complete for UI work — one-shots and loops, organised by intent rather than by filename. The 12 personalities let you audition a whole sonic direction rather than picking sounds one at a time. Zero dependencies, installable from npm, and interactive demos let you hear cues in context before committing.
Drawbacks
- It is a fixed library, not a sound design tool — if none of the 12 personalities fit your brand, you are back to commissioning audio. Small project maintained largely by one person with sponsorship, so the bus factor is low. Nothing here helps with longer-form audio, music or voice.
UI SFX alternatives and related tools
Ant Design
Enterprise-focused React component system with exhaustive data-display components.
FreeDesign Lint
Figma plugin that flags inconsistent styles and detached components.
FreeRadix Themes
Pre-styled component library built on Radix primitives.
FreeTabler Icons
Over 5,000 free MIT-licensed icons designed on a consistent grid.
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