How do I turn a colour photo into black and white?

Pick the Black & white filter. Raising the contrast a little usually gives monochrome photos more depth.

Does adjusting change the resolution?

No. Output has exactly the same pixel dimensions; JPG is re-encoded at high quality and PNG/WebP keep their format.

Are my files or data uploaded?

No. Everything runs locally in your browser with no network upload, and is discarded when you close the page.

Do I need to sign up or pay?

No. The site is completely free, needs no account and has no usage limits.

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🎨Photo Editor - Adjust Brightness, Contrast, Saturation & Filters Online

Adjust the brightness, contrast and saturation of your images, or apply a black & white, sepia, invert, warm or cool filter in one click. Drag the sliders to see a live preview of the first image, then apply the same settings to the whole batch and download them together. Handy for rescuing dull or dark photos, turning colour shots into monochrome, or giving a set of pictures a consistent look. Everything runs locally and images are never uploaded.

Free · No sign-up · Runs in your browserLast updated: 2026-10-26

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How to use Adjust Image Colours

1Drop in one or more images
2Choose a filter and drag the brightness, contrast and saturation sliders while watching the preview
3Click Apply & export and download the results

FAQ

How do I turn a colour photo into black and white?: Pick the Black & white filter. Raising the contrast a little usually gives monochrome photos more depth.
Does adjusting change the resolution?: No. Output has exactly the same pixel dimensions; JPG is re-encoded at high quality and PNG/WebP keep their format.
Are my files or data uploaded?: No. Everything runs locally in your browser with no network upload, and is discarded when you close the page.
Do I need to sign up or pay?: No. The site is completely free, needs no account and has no usage limits.