About This Tool
Grayscale Image creates images in shades of gray while retaining tonal detail. Remove all color or keep some for black-and-white artwork or a softer look.
How to Use
- Choose or drop an image and check its orientation, file size, and pixel dimensions.
- Set the grayscale strength, choose the output format, and adjust quality or the background color where available.
- Click “Apply changes” to compare the original and result, including actual pixel dimensions and file size.
- Download when you are satisfied. “Reset settings” restores the default effect; “Clear” removes the files and results.
Settings explained
- Grayscale strength ranges from 0% to 100% and defaults to 0%. At 0%, original colors remain; at 100%, the image is fully grayscale.
Supported Formats
- Input: JPG/JPEG, PNG, or static WebP. GIF, animated PNG, and animated WebP are not supported.
- Output: JPG, PNG, or WebP if supported by your browser. Most edits keep the input format by default; opacity and rounded-corner tools default to PNG.
Image Processing Notes
Changes apply to the full original image and keep its loaded pixel width and height by default. The preview may appear smaller; the downloaded file contains the full processed image.
- Grayscale preserves variations in brightness. Red, green, and blue produce different grays according to their perceived brightness.
- The result contains shades of gray, not just pure black and white. Original transparency is unchanged.
- Downloads contain the full processed image. Saving again can change file size and compression details, and usually removes original EXIF, GPS, and similar information. Keep your original file.
Each image can be up to 100 MiB. Files over 50 MiB trigger a high-memory-use notice. Original and output images are limited to 16 megapixels, with each dimension no greater than 16,384 pixels. Some operations have lower limits; resize the image first if prompted.
Privacy
Images are processed entirely in your browser and are never uploaded to a server.
Files are not saved automatically. Download any results you want to keep before clearing or leaving the page, and keep your original file.
FAQ
Is grayscale the same as a two-color black-and-white image?
No. Grayscale retains many shades and tonal variations. A two-color black-and-white image uses only black and white.
What does 50% grayscale mean?
It blends the original colors with full grayscale, leaving some color. Only 100% removes all color.
Will transparent areas turn gray?
Original transparency stays unchanged. Save transparent images as PNG or WebP; JPG fills transparent areas with a background color.
Will the download keep the original dimensions?
The tool preserves the loaded image’s pixel dimensions. A smaller preview does not make the download smaller. Output format and quality can still affect file size and detail.