Grayscale Converter
Convert images to grayscale online for free. Turn color photos into classic black and white with one click. Local, no upload.
Local processing · No upload
Drag image here, or click to select
Supports JPG / PNG / WebP / BMP · Paste with Ctrl+V
Color information has been automatically converted to grayscale.
How to use
- Upload your image — drag and drop it onto the page, or click to select a file from your device.
- Adjust the settings until the preview looks right for your needs.
- Download the result — your file is processed locally and never leaves your device.
Frequently Asked Questions
Do I need to register or install software?
No. All processing happens locally in your browser. No registration, no installation required.
Will my images be uploaded to a server?
Never. Everything runs on your device: images are read and rendered by the browser, never uploaded to any server. Your privacy is safe.
Do these tools need internet?
All processing runs locally in browser. Except initial model load for some tools, fully offline. No data upload.
Do background removal and signature extraction support transparency?
Yes. Both output transparent PNGs ready for overlay use.