Convert audio files between MP3, WAV, OGG, FLAC, AAC/M4A, and OPUS. The transcode runs in your browser via ffmpeg.wasm.
Audio is processed in your browser — never uploaded to our servers.
DEV-TOP · horizontalRun
Upload an audio file to start.
DEV-BOTTOM · horizontalWAV and FLAC are lossless — every sample is preserved. WAV is uncompressed (large files); FLAC compresses losslessly (about half the size). MP3, OGG, AAC, and OPUS are lossy — they discard inaudible detail to produce much smaller files. For listening, MP3 at 192 kbps or OPUS at 128 kbps is transparent for almost everyone. For archiving or further editing, keep FLAC.
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