Make any image black and white with adjustable contrast.
Drop images here or click to browse
Processing happens on your device. Nothing is uploaded.
Files are processed locally in your browser. They never touch our servers.
Sensible settings are applied automatically. Fine tune them only if you want to.
Drop multiple images at once and download everything together as a ZIP.
Use this tool when you need a fast, private way to prepare images for websites, upload forms, email, social media, ecommerce listings, documentation or everyday sharing.
Image optimization works best when you choose the right balance between file size, visual quality, dimensions, format compatibility and privacy. These tips help you get a cleaner result.
The Black and White Image tool gives you two common monochrome looks. Grayscale keeps smooth shades of grey, while pure black-and-white threshold mode turns every pixel into either black or white.
| Mode | Best for |
|---|---|
| Grayscale | Photos, portraits, product images and natural black-and-white looks |
| Pure black and white | Scans, stencils, icons, high-contrast graphics and line-art style output |
Converting to black and white does not always make the file smaller. If file size matters, finish with Compress Image.
These tools solve similar image optimization problems and work the same way: locally in your browser, with no required upload.
Grayscale keeps many shades of grey. A true black-and-white threshold effect turns pixels into only black or white.
Sometimes, but not always. Format, dimensions and compression settings usually matter more than colour alone.
No. The conversion happens locally in your browser.