Audio Format Detector
Detect audio file format from magic bytes entirely in the browser. Drag-and-drop a file, we read the first 64 bytes and match against 15+ audio format signatures (MP3 ID3/frame-sync, WAV, FLAC, OGG, M4A/AAC, WMA, AIFF, ALAC, OPUS, APE, TTA, WavPack, Speex, AMR, 3GP). Extracts sample rate, channels, bit depth, duration from headers. Includes MIME lookup, file extension lookup, container info (lossless/lossy), bit-depth & channel-layout tables, format comparison table, closest-match suggestion for unknown formats, confidence score, text/CSV/JSON exports, history (localStorage), shareable URL, summary stats. 100% client-side.
Detect audio file format from magic bytes entirely in the browser. Drag-and-drop a file, we read the first 64 bytes and match against 15+ audio format signatures (MP3 ID3/frame-sync, WAV, FLAC, OGG, M4A/AAC, WMA, AIFF, ALAC, OPUS, APE, TTA, WavPack, Speex, AMR, 3GP). Extracts sample rate, channels, bit depth, duration from headers. Includes MIME lookup, file extension lookup, container info (lossless/lossy), bit-depth & channel-layout tables, format comparison table, closest-match suggestion for unknown formats, confidence score, text/CSV/JSON exports, history (localStorage), shareable URL, summary stats. 100% client-side. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.