Black and white video
Take the color out of a clip. The audio is copied across untouched.
Your file
Drop a file here, or click to choose
It stays on this device. Nothing is sent anywhere.
Settings
Not all monochrome looks the same
Removing color is a decision about which grays the colors become. A flat desaturation makes a red jumper and a green hedge land on nearly the same gray, which is why naive black and white footage looks muddy. Raising the contrast separates them again and gives the picture some snap.
Because only the picture is touched, the sound track is copied through byte for byte and loses nothing.
Common questions
Can I get the color back afterwards?
Not from the output. The color information is discarded, so keep your original.
Does this make the file smaller?
Usually a little, since there is less chroma information to encode, but the saving is modest.