Is the video uploaded?

No. FFmpeg.wasm processes the file in your browser. We do not receive a copy.

Which formats can I export?

MP3, WAV, M4A (AAC), OGG (Vorbis), and FLAC. Pick one before converting. The source should still be MP4, WEBM, or MOV with an audio track.

Why does the engine take a moment to load?

The WebAssembly core is fetched once from a CDN, then kept in this tab for the next conversion.

Can I change Hz, bitrate, and quality?

Yes. Each format shows only the controls that apply: sample rate, mono/stereo, bitrate or bit depth, and quality or FLAC compression.

Why did extraction fail?

If the clip has no soundtrack you will see a specific message. Very large files can fail because the whole video is loaded into browser memory. Refresh the page if the conversion engine did not load.

What happens if I change settings after converting?

The previous audio file is cleared. Your video stays selected — tap Extract audio again with the new Hz, bitrate, or quality.

MP4 → Audio

Audio & video tools

Convert video to audio — no upload

Extract MP3, WAV, M4A, OGG, or FLAC from MP4, WEBM, or MOV in your browser. The video is never uploaded.

Output format

Sample rate

Channels

MP3 encoding

Bitrate

The extracted audio player will appear here after conversion.

How do I extract audio from a video?

Drop an MP4, WEBM, or MOV file.
Choose the output format: MP3, WAV, M4A, OGG, or FLAC.
Set sample rate, channels, and bitrate or quality for that format.
Wait for the engine if needed, then tap Extract audio.
Preview the audio, compare sizes, and download.

The conversion engine is loaded from a CDN into this tab only. Close the page and the files leave memory.