Is this online grayscale converter truly free?

Yes, our grayscale converter is completely free to use with no limitations on the number of conversions and no need to download any software. It's a fast grayscale solution available directly in your web browser.

How does the RGB to grayscale conversion work?

Our tool uses a standard luminance calculation (typically something like `L = 0.299*R + 0.587*G + 0.114*B`) to determine the brightness value for each pixel, effectively removing color information while preserving the perceived brightness.

Can I use this as a batch grayscale converter?

This specific tool is designed for single image grayscale conversion. For converting multiple images to grayscale simultaneously, please check our 'Bulk Image Converter' tool, which may include grayscale as a conversion option or could be a feature we add in the future.

What is the output format of the grayscale image?

The tool aims to preserve the original image format where appropriate (e.g., if you upload a PNG, it will likely output a grayscale PNG). For JPEGs inputs, the output will typically be a grayscale JPEG. This ensures compatibility and good quality for your grayscale photos.

Can I convert a grayscale image back to color using this tool?

No, this grayscale image converter only processes images from color to black and white. To add color to a grayscale image, you would need to use our 'AI Image Colorizer' tool or specialized photo editing software.