Video Filters & Color Correction

Give a video a different look, or fix one that came out too dark, flat or noisy: choose a look such as black and white, sepia, vintage, warm, cool, vivid or a teal-and-orange cinematic grade, then fine-tune brightness, contrast, saturation and gamma, and add sharpening, noise reduction or a vignette. A before-and-after frame shows the result next to the original before you process the whole clip. Everything runs in your browser with the ffmpeg engine, so the video is never uploaded.

How to use this tool

1. Choose a video and a look (or "None" to use only the settings).
2. Adjust brightness, contrast, saturation and gamma; add sharpening, noise reduction or a vignette if needed.
3. Check the before-and-after frame (original left, filtered right) and change the settings until you like it.
4. Untick "Preview only" and run again to process the whole video, then download the MP4.

Formula

eq: brightness = value ÷ 200, contrast = 1 + value ÷ 100, saturation = 1 + value ÷ 100

Each pixel goes through: noise reduction (hqdn3d) → the look → brightness/contrast/saturation/gamma (eq) → sharpening (unsharp mask) → vignette. Black and white removes the colour (hue s=0); sepia uses the classic 3 × 3 colour matrix; vintage is ffmpeg's "vintage" tone curve; warm and cool shift the colour balance. The filter chain actually used is shown in the result. Sharpening cannot add real detail, and strong noise reduction also smooths fine texture.

Example

Contrast +20, saturation +30 and brightness +10 become eq contrast = 1 + 20 ÷ 100 = 1.2, saturation = 1.3 and brightness = 10 ÷ 200 = 0.05 (on a scale where 1 would be white). A one-minute 720p clip is then re-encoded at roughly 9–13 frames per second, about 2.5–3.5 minutes.