Adjust Image Colors
Fix brightness, contrast, saturation and hue with sliders and a live preview, then download. Everything runs in your browser.
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This color adjust tool fixes brightness, contrast, saturation and hue with four sliders and a live preview — no presets to decode, no panels to learn. When it looks right, download it.
The adjustments render in your browser and the corrected image downloads straight from your device.
Why Use This Color Adjust Tool?
- Four sliders that cover 90% of color fixes — brightness, contrast, saturation, hue
- Live preview — the image updates as you drag
- Neutral defaults — nothing changes until you move a slider
- Private — rendered in your browser, no upload
- Free, no signup
How to Adjust Image Colors — 3 Steps
- Drop your image into the box above and wait for the preview.
- Move the brightness, contrast, saturation and hue sliders until the preview looks right — each starts at neutral.
- Press the blue Apply Adjustments button and download the corrected image.
The Four Sliders, and Which One to Touch First
Almost every "this photo looks off" problem is one of four things, and they map directly to the four sliders. Brightness fixes exposure — underexposed indoor shots and overexposed window-lit photos. Contrast restores separation — flat-looking photos (haze, dull light, scanned prints) come alive with a modest bump. Saturation controls color intensity — the fix for washed-out skies and pale food photos, and the dial to dial down when colors look cartoonish. Hue shifts every color around the wheel — the tool for the blue-tinted indoor photo or the green-tinged office fluorescent shot.
Order of operations that works: brightness first until the overall exposure feels right, then contrast to restore depth, then saturation, and hue last for color casts. Small moves beat big ones — 10–20% changes usually fix the problem, and pushing any slider past 150% starts to look processed. The live preview is the judge: if the correction looks natural at a glance and the photo subject looks like itself, you are done.
A note on what this tool is not: it is not a curves editor or a RAW developer. Fine local corrections (darken just the sky, brighten just a face) and white-balance-by-eyedropper need fuller software. What it does do — quickly, privately, with zero learning curve — is the global fix that makes an otherwise good photo acceptable, which is the job for the vast majority of images.
Technically, the adjustments are rendered through the browser's native filter pipeline onto a canvas copy of your image, then saved in the input's format. The original file stays untouched on your device, and nothing is uploaded at any point.
Frequently Asked Questions
Brightness first, then a little contrast to restore depth. If the photo is dark AND yellowish (indoor light), add a hue shift afterwards.
Within the session, just slide back to the middle (100% is neutral) — the preview updates live. Your original file on disk is never modified.
No detail is lost by the adjustment itself — pixels are re-rendered once. Avoid extreme slider values and the result stays clean.
Partially — the hue slider shifts overall color and fixes simple casts (too blue, too green). Precise white balance with an eyedropper needs fuller software.
100% is the untouched original. Below 100 reduces the effect (50% brightness = darker), above 100 increases it (120% saturation = more colorful). Hue is measured in degrees around the color wheel.
No — the preview and the final render both run in your browser.