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.
How to Use
- Paste any valid JSON, supports nesting, arrays and escapes
- Click Beautify to auto indent and format
- Click Minify to remove whitespace into one line
- All operations run locally for privacy
Related Tools
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.