Decode and play raw Base64 audio strings (MP3, WAV, OGG) with local playback and file export.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste your raw base64 string or data:audio/mp3;base64,... URI.
Click Play to listen to the decoded audio stream.
Download the decoded audio file directly to your device.
Standard browser-supported audio formats including MP3, WAV, OGG, AAC, and WebM.
No, audio decoding and playback are executed 100% in-memory in your browser using HTML5 Audio Data URIs.
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