Extract audio from video
Drop a video or audio file. Save its sound as MP3, WAV, FLAC, OGG, Opus or AAC.
Nothing is uploaded. Everything runs in this tab with @audio/decode and @audio/encode.
A free audio extractor that never sees your file
Most online extractors upload your video to a server, queue it, and return a watermarked or size-limited file. This page has no server. It reads the audio track out of the container with @audio/decode, an open-source JavaScript and WebAssembly decoder from audiojs, and writes the format you choose with @audio/encode. A 4 GB screen recording works the same as a 10-second clip.
Video to MP3, WAV, FLAC, OGG, Opus, AAC
MP3 at 256 kbps is the default because it plays everywhere. Choose WAV or FLAC for a lossless copy to edit, transcribe or archive. Opus and AAC give the smallest files at equal quality. The sample rate follows the source, so nothing is resampled unless you pick Opus, which always runs at 48 kHz.
Supported input formats
- Video: MP4, M4V, MOV, 3GP, WebM, MKV and AVI carrying AAC, AC-3, DTS, MP3, Opus, Vorbis, FLAC, ALAC or PCM audio. 5.1 tracks keep all six channels.
- Audio: MP3, WAV, FLAC, OGG, Opus, AAC, M4A, AIFF, CAF, WMA and AMR, so the page also converts audio (MP3 to WAV, M4A to MP3, FLAC to MP3).
When the in-page decoder cannot read a file (E-AC-3, TrueHD) it hands the bytes to your browser's own decoder, and as a last resort plays the file silently through the audio graph and records the output in real time.
Common uses
- Convert MP4 to MP3 for a lecture, podcast or interview recording
- Get a WAV from a screen recording to feed a transcription tool
- Pull the soundtrack out of a MOV from a phone or camera
- Extract audio from a WebM or MKV meeting recording
- Convert audio between formats without installing FFmpeg
Is the video uploaded anywhere?
No. There is no upload, account, watermark or size limit. Close the tab and nothing remains. The decoder and encoder are open source: read the decoder, read the encoder.
Questions
Is the video uploaded anywhere? No. Decoding and encoding run in your browser with open-source JavaScript and WebAssembly codecs. The file never leaves your device, so there is no size limit, no queue and nothing to delete afterwards.
Which video formats are supported? Video: MP4, M4V, MOV, 3GP, WebM, MKV and AVI with AAC, AC-3, DTS, MP3, Opus, Vorbis, FLAC, ALAC or PCM audio. Surround tracks keep their channels. Audio: MP3, WAV, FLAC, OGG, Opus, AAC, M4A, AIFF, CAF, WMA and AMR.
Which output formats can I save? MP3, WAV, FLAC, OGG Vorbis, Opus and AAC. WAV and FLAC are lossless; MP3, OGG, Opus and AAC are compressed.
Does it lose quality? The audio track is decoded to raw PCM at its original sample rate, then encoded to the format you pick. WAV and FLAC keep every decoded sample; MP3, OGG, Opus and AAC re-compress.
Are the tags kept? Yes. Title, artist, album, year, track number, comment and cover art are read from the source container and written into the MP3, FLAC, OGG, Opus or WAV you save. AAC (raw ADTS) has no tag chunk.