ローカル処理
Grayscale Image
Convert any image to black and white with a single click.
ここにimageをドロップ
またはコンピュータやスマートフォンのファイルを参照
ブラウザ内で100%ローカル処理
Simple Steps
How to use Grayscale Image
1
Select or drop the image you want to convert.
2
Choose Grayscale (black and white) or Sepia (vintage tone).
3
Pick the output format and quality.
4
Click 'Convert' and download your monochrome image.
Got Questions?
Frequently Asked Questions
Is the conversion lossless?
The color-to-grayscale mapping is deterministic and high quality. Exporting as PNG keeps every pixel, while JPG output applies normal JPG compression.
Why convert to grayscale?
Black and white images are often used for print, documents, artistic photography, and reducing file size where color is not needed.
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