Convert image to black & white
Convert images to grayscale or 2-tone black & white right on your machine. Images never leave your machine.
Images are processed on your machine — no file is uploaded to any server
The black & white image converter lets you create artistic grayscale images or 2-tone black-and-white images (pure black and white only) with an adjustable threshold — handy for scanned documents and making outlines stand out.
Batch-process right on your device; your files are never uploaded to a server.
How to convert images to black & white
- 1Select images
Drag and drop or click to select one or more JPG, PNG, or WebP images.
- 2Choose a mode
Pick Grayscale (keeps tonal shades) or 2-tone Black & White and adjust the threshold.
- 3Convert & download
Click Convert — download each image individually or download them all as a ZIP.
Frequently asked questions
Does converting images to black & white send them online?
Everything runs right in your browser — your files are never uploaded to any server, keeping them completely private.
What's the difference between grayscale and 2-tone black & white?
Grayscale keeps many brightness levels (from white through shades of gray to black), giving a soft image. 2-tone black & white has exactly two colors — black and white — based on the threshold you set: sharp, high-contrast, and great for text, signatures, and line drawings.