Convert color images to grayscale, pure black and white, or custom monochrome effects. Adjustable contrast and threshold.
Supports JPG, PNG, WebP, BMP, HEIC, TIFF, GIF and more
Files are processed locally in your browser. Nothing is uploaded to a server.
The black and white image converter strips color from your images, producing grayscale or pure monochrome results. Choose between full grayscale (256 shades of gray), pure black and white (only two tones — useful for stencils), or custom monochrome with adjustable threshold.
You can convert color image to black and white for artistic effect, document scanning, print preparation, and creating high-contrast designs. The grayscale image converter preserves tonal detail, while the pure B&W mode creates stark, graphic results.
Grayscale conversion maps each pixel's RGB values to a luminance value using a weighted formula (0.299R + 0.587G + 0.114B) that matches human brightness perception. Pure B&W applies a threshold — pixels above the threshold become white, below become black.
Getting Started
Drag and drop your file into the converter, or click to browse. Supports JPG, PNG, WebP, BMP, HEIC and more.
Configure output settings like quality, size, and format options. Defaults work well for most use cases.
Click "Convert" and your B&W file is ready in seconds. Free, unlimited, no account required.
Artistic photography. Creating stencils and silhouettes. Preparing images for black-and-white printing. Reducing visual complexity. Creating high-contrast designs for screen printing and laser engraving.
FAQ
Upload a color image, choose grayscale (full tonal range) or pure B&W (two tones only), adjust contrast if needed, and download.
Grayscale uses 256 shades of gray for smooth tonal transitions. Pure B&W uses only two colors (black and white) with no gray, creating a high-contrast stencil-like effect.
Yes — Image → Adjustments → Black & White in Photoshop. This tool is faster if you just need a quick conversion without opening Photoshop.
All Converters