Image Brightness Adjuster
图片亮度提亮照片调光图片编辑
Adjust image brightness with a live-preview slider and pixel-accurate processing, then download as PNG — for photo rescue, ID photos and product shots, fully local.
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How to Use
- Upload or drop the image you want to adjust
- Drag the sliders to preview the effect in real time
- Export and save the adjusted image when satisfied
- Images are processed inside your browser only — never uploaded to any server
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FAQ
Which formats are supported?
Any browser-decodable input (JPG/PNG/WebP/first GIF frame etc.); output is lossless PNG.
Will quality degrade?
Processing is exact per-pixel math and the PNG output is lossless — no recompression artifacts.
Is my image uploaded?
No, everything runs locally in your browser.