Lossless stream-copy (no re-encoding)
When you only mute or trim without image/speed edits, CutCull copies the original video stream directly and drops the audio track in seconds with zero quality loss.
Remove sound from MP4 and MOV videos right in your browser. Strip the audio track from the entire file or mute specific subclips via lossless stream-copy without re-encoding — no watermark and no server uploads.
HOW IT WORKS
Select up to 20 MP4 or MOV files per session (each under about 2 GB). CutCull keeps read-only references; nothing is uploaded.
Click the speaker icon on the full-clip row to silence the entire video at once, or mark In/Out ranges to mute only chosen clips.
Generate a brand-new MP4 with the audio track completely removed, verified for clean playback before you download.
WHAT IT DOES
When you only mute or trim without image/speed edits, CutCull copies the original video stream directly and drops the audio track in seconds with zero quality loss.
Instead of just zeroing volume, exported files carry no audio stream at all — smaller file size and guaranteed silence everywhere you upload.
Because pure muting uses lossless stream-copy, iPhone Dolby Vision / HLG and camera HDR10 videos keep their original HDR bitstream intact.
Mute an entire wind-noisy B-roll file in one click, or extract multiple clean clips and decide audio on or off per clip.
Need slow-motion B-roll, reversed clips, color grading, .cube LUTs, or cropping too? Combine them with Mute in one export.
WHY NOTHING IS UPLOADED
Demuxing and MP4 packaging run locally inside this browser tab with WebAssembly. CutCull never receives your videos, audio, or file names.
HONEST LIMITS
Sessions hold up to 20 files, each under about 2 GB. Muting removes the entire audio track on the exported clip (CutCull does not replace audio, add background music, or isolate vocals). Desktop Chrome or Edge is recommended for large files.
QUESTIONS
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