What ranges do the sliders accept?

Brightness goes from -1 (pitch black) to +1 (washed white) with 0 as the source baseline. Contrast spans 0 (flat grey) to 2 (very crunchy) with 1 neutral. Saturation runs 0 (grayscale) to 3 (oversaturated) with 1 neutral.

How does grayscale differ from setting saturation to 0?

Functionally they produce the same effect. The grayscale checkbox is just a convenient shortcut that applies `hue=s=0` regardless of the saturation slider position — useful when you want a guaranteed monochrome look.

How is the sepia effect created?

Sepia uses ffmpeg's `colorchannelmixer` filter with a classic vintage matrix — the same RGB-to-brown transform used in photo apps. It produces a warm, aged-photo tone reminiscent of late-19th-century prints.

Can I combine multiple filters?

Yes. Brightness, contrast and saturation always apply together. Grayscale and sepia can each be toggled on top. Sepia overrides grayscale visually since it includes a hue tint.

Does this re-encode the video?

Yes — applying any color filter requires re-encoding the video stream because pixel values are being changed. Audio is stream-copied unchanged.

Is anything uploaded?

No. ffmpeg.wasm runs locally in your browser. The video file never leaves your device.

Video Color Filters — Brightness, Contrast, Sepia in Browser

Video Color Filters

Adjust brightness, contrast, saturation and apply grayscale or sepia to any video — entirely in your browser.

100% client-side · no upload

Video file (MP4, WebM, MOV…)

Load a video file to begin.

How to apply color filters to a video

Load a video file — MP4, WebM, MOV all work.
Drag the brightness, contrast and saturation sliders to taste.
Optionally tick grayscale for monochrome or sepia for a vintage warm tone.
Click Apply filters and download the result.

Common use cases

Underexposed footage: Raise brightness slightly and add contrast to recover an underlit clip.
Cinematic mood: Lower brightness, add contrast and slightly desaturate for a moody film look.
Vintage memoir: Apply sepia to home-video footage to evoke an aged-film aesthetic.
Documentary B-roll: Convert to grayscale to mark archival or flashback sequences.

Related tools: Video Compressor · Video Cropper · Video Screenshot · Video Rotator

よくある質問

What ranges do the sliders accept?: Brightness goes from -1 (pitch black) to +1 (washed white) with 0 as the source baseline. Contrast spans 0 (flat grey) to 2 (very crunchy) with 1 neutral. Saturation runs 0 (grayscale) to 3 (oversaturated) with 1 neutral.
How does grayscale differ from setting saturation to 0?: Functionally they produce the same effect. The grayscale checkbox is just a convenient shortcut that applies `hue=s=0` regardless of the saturation slider position — useful when you want a guaranteed monochrome look.
How is the sepia effect created?: Sepia uses ffmpeg's `colorchannelmixer` filter with a classic vintage matrix — the same RGB-to-brown transform used in photo apps. It produces a warm, aged-photo tone reminiscent of late-19th-century prints.
Can I combine multiple filters?: Yes. Brightness, contrast and saturation always apply together. Grayscale and sepia can each be toggled on top. Sepia overrides grayscale visually since it includes a hue tint.
Does this re-encode the video?: Yes — applying any color filter requires re-encoding the video stream because pixel values are being changed. Audio is stream-copied unchanged.
Is anything uploaded?: No. ffmpeg.wasm runs locally in your browser. The video file never leaves your device.