Try it here without changing your browser

Make any video look better.

Pick a fix. Move one slider. Drag the line to see the change.

1Pick a fixStart with a preset.
2Move a sliderWatch the picture.
3Drag the lineCompare before and after.

Using the extensionOpen it from the chameleon on a video

Click the chameleon on the active video to open the controls. You can also pin Global Video Enhancer from Chrome's puzzle-piece menu.

Choose a screenshot. Nothing leaves this page.

Your screenshot will appear here Then move any slider and compare it with the original.

Quick preset

White balance

KelvinLower warms; higher cools 6500 K TintNegative adds green; positive adds magenta 0 StrengthHow much white balance is applied 100%

Light and colour

BrightnessMakes the whole frame lighter or darker 100% ContrastSeparates light and dark areas 100% SaturationReduces or strengthens colour 100%

Tone curve

ShadowsChanges the darkest parts 0 MidtonesChanges most of the visible picture 0 HighlightsChanges the brightest parts 0

Detail

DehazeCuts grey haze and adds local contrast 0% Compression cleanupSoftens blocky low-bitrate artefacts 0% SharpnessNegative softens; positive clears edges 0%

Compare

Split positionMoves the original/changed divider 50%

Chameleon launcher

Chameleon opacityControls how visible the launcher is 100% Chameleon sizeResizes the launcher, not the screenshot 48 px

1 White balance

Fix a strange colour cast

Make skin tones and the white dress look natural again.

Preset applied: 5900K · tint +10

Wedding couple under a green colour cast before white-balance correction

Wedding couple with corrected white balance after the tutorial adjustment

Original Changed

Kelvin blue ↔ orange5900K Tint green ↔ pink+10

Use this in the extension

Choose Pick White Balance, then click something white or grey in the video.

2 YouTube and streaming

Clear soft detail

Bring back edges lost to compression.

Preset applied: dehaze +14% · sharpness +3% · saturation 121%

A soft hazy creator video with visible hair, knitwear, brick, leaves and a microphone

Original Changed

Dehaze cuts grey haze+14% Sharpness clears edges+3% Saturation adds colour121%

Use this in the extension

Choose the YouTube preset. Stop sharpening if edges start to glow.

3 Bright and dark scenes

Bring back bright detail

Lower highlights for windows; lift shadows for dark corners.

Preset applied: highlights -38% · midtones -5% · shadows +18%

A backlit reader with a bright curtain, normal face and jumper, and dark shelves and jeans

Original Changed

Highlights brightest parts-38% Midtones most of the picture-5% Shadows darkest parts+18%

Use this in the extension

Use Levels or the tone curve. Keep the end points anchored; shape the light between them.

4 Animation and anime

Make anime lines pop

Use the preset for crisp line work and lively colour without a harsh look.

Preset applied: contrast 100% · saturation 120% · sharpness +72%

An original softly detailed anime courier on a rooftop at blue hour

Original Changed

Sharpness clears line work+72% Saturation adds colour120% Contrast separates light and dark100%

Good starting point

Start here, then lower sharpness if outlines look crunchy.

Now try it on a video you already watch.

Open a video, click the chameleon, choose a preset, and adjust from there. Resetting live adjustments does not erase settings saved for a website or video.

Start again