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Black & White
Convert your photo to grayscale in one click.
or drag & drop a file here
How to black & white online
- Upload your image — Drag & drop a file or click Upload Image.
- Apply grayscale — Click once to convert the full-color photo to black and white.
- Preview the result — Compare the grayscale version against the original before saving.
- Download the black & white photo — Click Go to Download to save it.
Why convert to black & white with ToolsGuru?
- One-click grayscale — No sliders or settings needed — a clean grayscale conversion instantly.
- Great for documents & scans — Turn colour photos of documents into cleaner, smaller black & white files.
- Private processing — Your photo is converted locally in your browser, never uploaded.
- Free, no watermark — Convert as many photos as you like at no cost.
Frequently asked questions
Does black & white conversion reduce file size?
Often yes, especially for JPG output, since grayscale images can compress a bit smaller than full-colour ones.
Can I undo the black & white effect?
Yes, use Discard Changes to go back to the original colour image before downloading.
Is this the same as a 'grayscale' filter?
Yes — black & white and grayscale describe the same effect: removing colour information and keeping only brightness.
Will this work on PNG images with transparency?
Yes, transparency is preserved; only the visible colours are converted to grayscale.