通过实时预览调整图片的亮度和对比度。
Our free online brightness and contrast adjustment tool helps you enhance your images with precise control over exposure and tonal range. Whether you need to lighten underexposed photos, darken overexposed images, or boost contrast for more dramatic visuals, our tool provides real-time preview and professional-quality results. All processing happens in your browser for complete privacy.
Brightness adjusts the overall lightness or darkness of your entire image. Increasing brightness makes all pixels lighter, while decreasing it makes everything darker. Use this to fix exposure problems or create specific lighting moods.
Contrast adjusts the difference between the lightest and darkest areas of your image. Increasing contrast makes lights lighter and darks darker, creating more dramatic separation. Decreasing contrast brings tones closer together for a flatter, softer look.
For best results, often adjust both: fix exposure with brightness first, then enhance detail separation with contrast.
Image Blur
Add blur effect to your images
Brightness
Adjust image brightness
Contrast
Adjust image contrast
Crop Image
Crop images to desired size
Resize Image
Resize images to any dimension with precise control over width, height, and aspect ratio for web, social media, and print
Bulk Resize Image
Resize multiple images at once with consistent dimensions for batch processing, web optimization, and social media preparation