Convert an image to grayscale
Convert any photo or image to grayscale in one click and download it. A simple black and white converter that runs privately in your browser.
- Files never leave your device
- Free, no sign-up
- No watermark
About Grayscale Image
Turn a colour image into a black and white version in one click. Grayscale photos look timeless, print cleanly on monochrome printers and make text in screenshots easier to read. Drop an image, preview the result and download it. The conversion is done by your browser, so the image is never uploaded.
How to use Grayscale Image
- 1
Drop the image you want to convert.
- 2
The grayscale preview appears instantly.
- 3
Check the result.
- 4
Download the black and white image.
Why use this tool
- One-click black and white conversion.
- Perceptual weighting keeps natural-looking tones.
- Works with photos, screenshots and graphics.
- Keeps the original dimensions.
- Private and free.
Frequently asked questions
Grayscale keeps all the shades of grey between black and white, which is what people usually mean by a black and white photo.
Yes. Open the result in Adjust Brightness & Contrast to fine-tune it.
Transparent PNG areas stay transparent.
Use Grayscale PDF for whole documents.
No. Your images are processed by your own browser and never sent to CodeMites or any other server.
Yes. There is no account, no watermark and no usage limit. The tool runs in your own browser, so there is no server cost to charge you for.
Yes. It runs in any modern browser on Android and iOS as well as on Windows, macOS and Linux, with nothing to install.
Monochrome images create a calm, consistent look, and colour can then be reserved for highlights and calls to action.
JPG, PNG, WebP and other common image formats.
Sometimes slightly. For real savings, run the result through Compress Image.
Related tools
All Image tools →- Adjust Brightness & ContrastBrighten dark photos, add contrast and boost or reduce saturation with live preview sliders, then download.
- Invert Image ColorsInvert the colours of any image to create a negative effect, or make dark screenshots readable on paper.
- Grayscale PDFConvert every page of a PDF to grayscale to save colour ink and get print-ready black and white documents.
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- JPG to PNGConvert JPG or JPEG photos to lossless PNG images in your browser, ready for editing and design tools.