Question 1

Does removing audio re-encode my video?

Accepted Answer

No. This tool uses FFmpeg stream copy (-c:v copy -an). The video stream is copied byte-for-byte — no re-encoding, no quality loss, and processing is near-instant regardless of file size.

Question 2

Will the video quality change?

Accepted Answer

Absolutely not. Stream copy means every pixel in every frame is identical to the original. Only the audio track is removed.

Question 3

How long does it take to process a large file?

Accepted Answer

Stream copy speed is limited only by your device's disk/memory speed, not encoding time. A 1GB video typically processes in 2–10 seconds.

Question 4

Does my video get uploaded to a server?

Accepted Answer

No. FFmpeg WebAssembly runs 100% inside your browser. Your file never leaves your device.

Question 5

What video formats are supported?

Accepted Answer

MP4, MOV, WEBM, MKV, AVI, M4V, FLV, WMV, TS and 3GP are all supported as input.

Question 6

What if my video has multiple audio tracks?

Accepted Answer

All audio tracks are removed — stereo, surround, commentary tracks, secondary language tracks — every audio stream is stripped.

Question 7

Can I keep the same container format?

Accepted Answer

Yes. Enable 'Auto-match output format to input' (on by default) and the output will use the same container as your input file.