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OneFileConverter
Image

Make an image black and white

Turn colour photos into clean grayscale with natural brightness — many at once.

Formats
JPG, PNG, WEBP +5
Max size
100 MB
Price
Free

Drop files here

or browse your device

JPG, PNG, WEBP, AVIF, HEIC, GIF, BMP, TIFF · up to 100.0 MB per file

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How to make an image black and white

  1. Add your images — up to 100 at a time.
  2. Nothing to set.
  3. Click Convert and download the black-and-white copies.
Are my images safe?

Yes. Your images are only used to create your result — they’re never shared and never used to train AI.

How is the gray level worked out?

Each pixel's brightness is weighted the way eyes see colour (green counts most, blue least), so skies and skin keep a natural tone instead of turning flat.

Does it keep the format and size?

Yes — same dimensions and format. JPG and WebP are re-saved at high quality.