Convert image to grayscale
Turns colour images into black and white with correct luminance weighting.
Runs in your browser – your file is never uploaded
Frequently asked questions
Is my file uploaded?
No. The conversion runs entirely in your browser. The file never leaves your device – there is no server that could see it. Once the page has loaded, the tool even works offline.
Does the file get smaller?
Usually yes. A greyscale JPG or PNG stores one channel instead of three, so files often shrink by a third or more. WebP keeps three channels internally, but the identical channels compress very well.
Does the file format stay the same?
Yes. A JPG stays a JPG, a PNG stays a PNG, WebP and AVIF likewise. JPG, WebP and AVIF are re-encoded with the quality you set; PNG stays lossless. To change the format, use one of the converters afterwards.
What happens to EXIF data such as camera model or GPS position?
By default we remove all metadata, including GPS coordinates. Switch on “Keep metadata (EXIF)” if you want it kept. The orientation stored in the file is applied to the pixels either way, so the image never appears rotated.
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