Does Contrast Video upload my file or text to Tool-You servers?

No. Contrast Video runs in this browser tab. Files stay on the device. Limit note: eq=contrast 0.5 to 2. Audio copied. ffmpeg.wasm first load ~25 MB. Max 100 MB.

Should I use Image Contrast instead of Contrast Video?

Use Contrast Video when you need Raise or lower clip contrast. Use Image Contrast when you need Raise or lower contrast. They share a category (Video) but not the same job.

Contrast Video

Raise or lower clip contrast.

ffmpeg.wasm eq=contrast from 0.5 to 2, audio copied. Unlike Contrast Image this is video. Unlike Brightness Video this pivots midtones, not a lift. First run downloads the engine. Max 100 MB.

What Contrast Video does

ffmpeg.wasm eq=contrast from 0.5 to 2, audio copied. Unlike Contrast Image this is video. Unlike Brightness Video this pivots midtones, not a lift. First run downloads the engine. Max 100 MB.

Contrast Video sits in the Video group on purpose. It is not Image Contrast (Raise or lower contrast.) and not Brightness Video (Raise or lower clip brightness.). Choose this page when you need Raise or lower clip contrast. If you stretch Contrast Video into a neighbor’s job, the result will look wrong even though the site chrome looks the same.

How to use Contrast Video

Stay on this Contrast Video page (/contrast-video). Do not switch to Image Contrast unless you actually want Raise or lower contrast..
Add the file type Contrast Video accepts. Hint from the path: contrast video. Raise or lower clip contrast.
Set only the options that match Contrast Video. Neighbor Brightness Video does something else (Raise or lower clip brightness.). Tool note: ffmpeg.wasm eq=contrast from 0.5 to 2, audio copied. Unlike Contrast Image this is video. Unlike Brightness Video this pivots midtones, not a lift. First run downloads the engine. Max 100 MB.
Run Contrast Video in this tab. Browser memory still applies: eq=contrast 0.5 to 2. Audio copied. ffmpeg.wasm first load ~25 MB. Max 100 MB.
Download or copy the result from Contrast Video. If it is the wrong job, open Image Contrast instead.

When not to use Contrast Video

Skip Contrast Video when a neighbor tool matches better — start with Image Contrast or Brightness Video — or when the description already warns the job will fail. In the tool’s own words: ffmpeg.wasm eq=contrast from 0.5 to 2, audio copied. Unlike Contrast Image this is video. Unlike Brightness Video this pivots midtones, not a lift. First run downloads the engine. Max 100 MB.

Questions about Contrast Video

What does Contrast Video do that other Video pages on this site do not?: ffmpeg.wasm eq=contrast from 0.5 to 2, audio copied. Unlike Contrast Image this is video. Unlike Brightness Video this pivots midtones, not a lift. First run downloads the engine. Max 100 MB. Short version: Raise or lower clip contrast.
Does Contrast Video upload my file or text to Tool-You servers?: No. Contrast Video runs in this browser tab. Files stay on the device. Limit note: eq=contrast 0.5 to 2. Audio copied. ffmpeg.wasm first load ~25 MB. Max 100 MB.
Should I use Image Contrast instead of Contrast Video?: Use Contrast Video when you need Raise or lower clip contrast. Use Image Contrast when you need Raise or lower contrast. They share a category (Video) but not the same job.
What are the limits of Contrast Video?: eq=contrast 0.5 to 2. Audio copied. ffmpeg.wasm first load ~25 MB. Max 100 MB. Also: ffmpeg.wasm eq=contrast from 0.5 to 2, audio copied. Unlike Contrast Image this is video. Unlike Brightness Video this pivots midtones, not a lift. First run downloads the engine. Max 100 MB.