Keep Quality

Upload without the quality hit

Repackages your video so the platform's ingest pipeline treats it differently. Your picture is copied byte for byte — nothing is re-encoded, nothing is uploaded anywhere. It all happens in this tab.

Drop a video here

or click to choose · MP4 or MOV · stays on your device

What it actually does

There is no magic encoder here, and nothing can improve a video's quality after the fact. Every frame that comes out is the identical frame that went in — the tool proves this to itself by hashing the video bitstream before and after. What changes is everything around the picture:

  1. The editor's fingerprints come off

    CapCut stamps exports with a provenance block — a flag saying the file was already re-encoded by its transcode engine, the encoder name, and a JSON manifest carrying a per-video id and a list of which AI features you used. All of it is removed.

  2. A second audio track is added, and it is deliberately broken

    It points at the same audio bytes as the real track, so it costs almost nothing, then appends thousands of eight-byte junk frames with impossible timestamps. A decoder that tries to read it gives up. The intent is to push a server-side transcoder off its re-encode path and onto a copy path.

  3. The container is rebuilt

    The header moves to the front of the file, chunks are re-interleaved, and the handler names are written one byte short so the muxer no longer looks like FFmpeg.

Two things worth knowing

Stripping the metadata also removes the flags that declare which AI features an edit used. If your video used AI voice, image or music generation, that disclosure goes with it — which is a platform-rules question, not a technical one. Turn the option off in Advanced if you would rather keep it.

And whether a platform actually responds to any of this is not something this tool can prove. The file changes are real and verifiable; the effect on someone else's servers is not. Test it against a normal upload before you believe it.