将图像转换为灰度
免费在线将您的彩色图像转换为黑白（灰度）。
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Convert color images to grayscale or black-and-white online. Useful for creating print-ready artwork, reducing file size, or achieving a classic monochrome look. Supports JPG, PNG, WebP, and other common formats.
将图像转换为灰度 — 使用方法
- 1 Upload your color image
- 2 Select grayscale conversion mode
- 3 Preview the grayscale result
- 4 Download your grayscale image
常见问题
Grayscale uses a full range of gray shades from black to white. True black-and-white (1-bit) uses only pure black and pure white pixels.
Often yes, especially for PNG files. Grayscale images use one channel instead of three, which can significantly reduce file size.
No. Converting to grayscale permanently removes color information. Always keep a backup of your original color image.
