Black and White Image Converter
Turn a photo black and white (grayscale) online — free, instant and 100% in your browser. Nothing uploaded.
Processed on your device — nothing is uploaded
Convert a photo to black and white (grayscale) instantly with Toolzo — free, in your browser. Fine-tune brightness/contrast and download.
How it works
Frequently asked questions
How do I make an image black and white?
Upload it — the grayscale filter is applied automatically; adjust and download.
Is it free?
Yes — free and private.
Does it work on mobile?
Yes — it runs in any mobile browser (Android & iPhone), no app needed.
Is it free and private?
Yes — free, no signup, and it runs in your browser so your file is never uploaded.