Grayscale Image
Convert any photo to clean black and white. Free, private, and instant: your image is processed in your browser and never uploaded.
Upload an image
Drop image here
or click to browse
Options
True luminance grayscale
Each pixel is mapped to its perceived brightness using the Rec. 601 luma formula for natural-looking black and white.
100% private
Your image is converted entirely in your browser using the Canvas API — nothing is ever uploaded to a server.
Free and unlimited
No signup, no watermark, no daily limit. Convert as many images as you like.
How to convert an image to grayscale
Upload your image
Drag and drop or click to select a JPG, PNG, or WebP image.
See the black and white
The grayscale preview appears instantly — zoom and pan to inspect the result.
Pick a format
Choose PNG to keep transparency or JPG for the smallest file size.
Download
Click download to save the grayscale image to your device.
Frequently asked questions
How do I convert an image to grayscale?
Upload your image above and the black-and-white version is generated instantly. Then click download to save it. Everything runs in your browser — nothing is uploaded.
Is the grayscale tool free?
Yes — completely free and unlimited. No signup, no account, no watermark, no daily limit.
Are my files uploaded to a server?
No. The conversion happens entirely in your browser on your device. Your image never leaves your computer, so it stays fully private.
What is the difference between grayscale and desaturation?
Grayscale maps each pixel to its true luminance for accurate black and white. Desaturation (in the saturation tool) reduces color intensity but can look flatter. Grayscale usually gives the cleaner result.
Convert another image
Drop in a new photo to make another black-and-white version — free and unlimited, no signup required.
Choose The Right Tool
Why this page exists
Use grayscale to convert any photo to clean black and white in your browser — every color is mapped to its true luminance.
Best for
- Classic black-and-white photo conversions
- Removing color distractions for documents or print
- A neutral base before adding a tint or other effect
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