Free · no upload · no signup

Convert to grayscale

One slider to true monochrome, with the contrast control to make it look intentional rather than washed out.

Drag & drop your images

or paste from your clipboard — up to 20 files, 40 MB each.

JPG · JPEG · JPE · PNG · WEBP · AVIF · GIF · BMP · DIB · HEIC·max 42 MB each

About this grayscale tool

Naive greyscale conversion uses the Rec. 601 luma weights, which ignores how the eye actually reads colour. This converter lets you blend between full desaturation and luma-based monochrome, then bump contrast and pull shadows — the difference between a photo that looks "converted" and one that looks black and white.

How it works

  1. 1Drop your images in. Drag and drop, paste from the clipboard, or browse. Whole folders are fine — the converter picks up every image it recognises.
  2. 2Tune the output. Pick a format, set the quality or a target file size, adjust dimensions, and dial in the colour. The preview updates as you type.
  3. 3Download. Save a single file, or grab the whole batch as one ZIP. A ten-second sponsored break comes first — that is what keeps the tool free.

Tip: check the preview before downloading

The preview runs the exact same pipeline as the download, including quality and the size target. If it looks right in the preview, the file on disk will look identical — there is no server-side re-encoding step that could change the result.

Format support

Every format that matters, in both directions

The output list only shows formats your browser can genuinely encode, so nothing ever fails silently.

Image formats supported for reading and writing by PixelForge
FormatStatus
JPGRead & write
PNGRead & write
WebPRead & write
AVIFRead & write
GIFRead & write
BMPRead & write
HEICRead (device dependent)
TIFFRead on some browsers
SVGRead (vector)

HEIC, TIFF, SVG and ICO are listed because your browser may be able to read them. If it cannot, the file is flagged with an explanation rather than failing silently — and the HEIC page has the fastest workarounds for every device.

FAQ

Grayscale Image Converter — questions

The things people actually ask about this conversion.

The colour information is discarded by definition. Exporting to JPG then applies lossy compression on top — use PNG if you need a truly lossless monochrome file.

Your images never have to leave your device

Convert, compress and resize as much as you like. Ten free conversions a day with no account, or sign in with Google for unlimited.

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