Image Grayscale Converter - Make Image Black & White
Convert images to grayscale or black and white online for free. Adjust grayscale intensity. Supports JPEG, PNG, WebP. 100% browser-based.
Click or drag an image here
Supports JPEG, PNG, WebP
Related Image Tools
What is Image Grayscale Converter?
Image Grayscale Converter is a free online tool that converts color images to grayscale (black and white). You can adjust the grayscale intensity from 0% (original color) to 100% (full grayscale) using a slider. The conversion uses standard luminance weighting for accurate results. All processing happens in your browser — no uploads required.
How to Convert Image to Grayscale
- Upload your image by dragging and dropping or clicking to browse
- Adjust the grayscale intensity slider (0% = color, 100% = full grayscale)
- Preview the result in real time
- Click 'Download' to save the grayscale image
Image Grayscale Features
- Adjustable grayscale intensity from 0% to 100%
- Real-time preview as you adjust the slider
- Supports JPEG, PNG, and WebP formats
- Accurate luminance-based grayscale conversion
- 100% client-side — images never uploaded to any server
Image Grayscale FAQ
What is the difference between grayscale and black & white?
Grayscale images contain shades of gray between black and white, preserving tonal detail. True black & white (1-bit) images have only pure black or white pixels. This tool produces grayscale output.
Can I partially desaturate an image?
Yes. Use the intensity slider to blend between the original color and full grayscale. For example, 50% gives a partially desaturated look.
Is my image uploaded to a server?
No. All processing happens in your browser using HTML5 Canvas. Your images never leave your device.