What is Extract Audio from Video?

Extract the audio track from video files. Supports MP4, WebM, AVI, and MOV inputs. Save as MP3 or AAC for everyday use, OGG for web and games, or WAV and FLAC when you need lossless quality — then download.

The extractor reads the audio track directly from common containers (MP4, MKV, WebM, MOV, AVI, FLV) using a FFmpeg build that runs on your device. MP3, AAC and OGG are compressed and roughly a tenth the size of the source for stereo music; WAV and FLAC are lossless, so the waveform survives intact for editing in Audacity or importing into a DAW. FLAC gives you that bit-for-bit copy at about half the size of WAV. Flip on volume normalization to even out quiet lecture or podcast audio to a steady -14 LUFS.

How to use

1. Step 1 — Upload or drag-and-drop your video file (MP4, WebM, AVI, or MOV, up to 500MB).
2. Step 2 — Pick the output format: MP3 or AAC for small everyday files, OGG for web and games, WAV or FLAC for lossless quality. Optionally turn on volume normalization to level out quiet audio.
3. Step 3 — Click extract, wait for processing, then download your audio file.

When to use

• Pulling a lecture or podcast soundtrack out of a downloaded MP4 to listen offline.
• Grabbing background music from a footage clip so you can re-use it in another edit.
• Converting a video voice memo into a clean MP3 you can email or share on WhatsApp.

Result

Extract the soundtrack from a 3-minute MP4 concert recording. Choose MP3 format to get a compact audio file you can add to your music library.

FAQ

What's the difference between MP3 and WAV output?

MP3 is compressed (around 128 kbps by default) and roughly 10x smaller, ideal for listening on phones. WAV is uncompressed PCM and matches the source bit-for-bit, ideal for editing in Audacity, Reaper, or a DAW.

Why does extraction fail on some MOV or MKV files?

Older ProRes MOVs and exotic MKV codecs (DTS-HD, TrueHD) aren't supported by the FFmpeg build that runs here. Re-encode the source to MP4 with H.264 video and AAC audio first, then extract.

Does extracting audio lose quality compared to the original?

WAV preserves the source exactly. MP3 re-encodes the audio, so there's a small generational loss, but at 128 kbps it's inaudible for most spoken word and acceptable for music. Pick WAV if you'll edit further.

Is there a maximum file size?

The tool caps uploads at 500 MB to keep memory usage reasonable on phones. Long video files near the limit can take 30 seconds or more to process — the progress bar shows how far along the extraction is.

Do my videos get uploaded anywhere?

No. The FFmpeg engine runs locally via WebAssembly. Your video bytes never leave the page — you can verify by opening DevTools and watching the Network tab while extracting.

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