Grayscale Converter
Convert images to black and white with an adjustable intensity slider. Drag and drop, no upload, 100% private. It runs entirely in your browser — no signup, no installation, and nothing you paste or drop leaves your device.
Drop your images here
PNG, JPG, GIF, BMP or WebP — or click to browse
How to Convert an Image to Grayscale Online
Drop your photo into the area above and it is converted to black and white instantly inside your browser — nothing is uploaded to a server, so your images stay completely private. Use the intensity slider to go from a subtle desaturated look to a full monochrome effect, and process several pictures at once. Each result gets its own download button, and the original file is never modified. Works on any modern desktop or mobile browser.
Bilder in Schwarzweiß konvertieren
More free tools
What is Grayscale Converter?
Grayscale Converter is a free online file converter built for anyone converting images, audio, video, units or colours. Convert images to black and white with an adjustable intensity slider. Drag and drop, no upload, 100% private In practice you drop your image onto the page, adjust the intensity slider, and then download the black and white image.
Files are processed in the browser with Canvas and WebAssembly, so photos, IDs and client material are never uploaded to a server.
How to use Grayscale Converter
- Drop your image onto the page.
- Adjust the intensity slider.
- Download the black and white image.
Grayscale Converter FAQ
Is Grayscale Converter free to use?
Yes. Grayscale Converter is completely free and needs no account, no trial and no payment details. Every feature on the page is available without limits.
Is my data uploaded anywhere?
No. Grayscale Converter runs entirely in your browser, so the text, file or number you enter never leaves your device.
Does Grayscale Converter work on a phone or tablet?
Yes. It works in any modern browser on desktop, tablet and phone. There is no app to install and no account to create.
How do I use Grayscale Converter?
Drop your image onto the page. Adjust the intensity slider. Download the black and white image.