Make an image warmer or cooler locally - one slider shifts the colour temperature. No upload.
Running locally on your device ...
0%
Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
Colour temperature describes whether an image looks warm (reddish-orange, like candlelight or a sunset) or cool (bluish, like shade or an overcast sky). This tool shifts it with a single slider: to the right the image becomes warmer (more red, less blue), to the left cooler (more blue, less red).
Adjusting the colour temperature rescues shots with a wrong white balance (a too-blue shadow photo, too-orange artificial light) or deliberately sets a mood - golden hour or a cool evening scene. At temperature 0 the image is unchanged. The output keeps your original format and dimensions.
Everything runs entirely locally in your browser on a canvas (no upload, even offline) - your image never leaves your device. The shift moves the red and blue channels in opposite directions while the green channel is preserved. Animated images are flattened to a single frame.
| Input formats | JPG, JPEG, PNG, WEBP |
|---|---|
| Output format | JPG |
| Batch processing | Yes |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: Shifts the colour temperature via a slider (-100 to 100): positive warmer (red up, blue down), negative cooler (reversed), 0 unchanged. The green channel is preserved. The original format and dimensions are preserved (PNG keeps transparency; JPEG flattens onto white). Animated inputs are reduced to a single frame.
No. The adjustment runs entirely locally in the browser on a canvas - even offline. Your image never leaves your device.
Positive values make the image warmer (more red/orange), negative ones cooler (more blue). At 0 everything stays unchanged.
It is a quick, global red/blue correction, not a full white balance to a neutral reference - but it is enough for most cases.
Yes. A PNG stays a PNG (with transparency), a JPEG stays a JPEG, and the dimensions are unchanged.