Image to Grayscale
Image to Grayscale is a free online image tool for changing PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF files into PNG files. Image to Grayscale accepts 6 MIME types, returns image/png, includes 1 setting, and runs in your browser on the device.
Drop .png / .jpg / .jpeg / .webp / .gif / .bmp / .avif file here
or click to choose — or paste an image with ⌘V / Ctrl+V
Options
Key facts
- Input
- 7 formats: PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF (image/png, image/jpeg, image/webp, image/gif, image/bmp, image/avif)
- Output
- PNG (image/png)
- Runtime
- your browser on the device
- Settings
- 1 control: Algorithm
- File mode
- 1 input file creates 1 output file
- Cost
- $0, no account required
How to use Image to Grayscale
- 1
Open your PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF file
Drop your PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF file onto the page, or click to browse and pick one from your device.
- 2
Choose options
Adjust the conversion options to suit your needs. Defaults work well for most inputs.
- 3
Convert and download
Click Convert. Your PNG file is ready to download in seconds.
Image to Grayscale details
First, Image to Grayscale reads PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF source files and prepares PNG output for the image workflow. Next, The visible controls are Algorithm. Additionally, Files and text stay in the browser session.
Drop in an image (PNG, JPG, WebP, GIF, BMP, AVIF) and download a grayscale version. Pick from four standard algorithms: Luminance (the perceptual default; closest to how the human eye weighs RGB channels), Average (a flat mean of R, G, B), Lightness (the midpoint of max and min channel; softer contrast), and Desaturation (HSL-style saturation removal). Output format matches the input where possible, defaulting to PNG. Image to Grayscale runs locally in your browser.
Common searches
- grayscale image
- convert image to grayscale
- image to grayscale
- grayscale converter
- grayscale photo
- make image grayscale
Related tools
Tools that work with the same formats — most users open one of these next.
Image to Black & White
Convert an image to pure black & white using a threshold — runs in your browser.
Image to Sepia
Apply a classic sepia tone to any image — adjustable intensity, runs in your browser.
Invert Image Colors
Invert (negate) the colors of any image — runs entirely in your browser.
Blur Image
Blur any image with an adjustable radius — fast separable box blur, runs in your browser.
Rotate Image
Rotate an image 90°, 180°, or 270° — lossless, runs entirely in your browser.
Flip Image Horizontally
Mirror an image left-to-right — lossless, runs entirely in your browser.
Frequently asked
What is Image to Grayscale?
Image to Grayscale is a free online image tool for changing PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF files into PNG files. Image to Grayscale accepts 6 MIME types, returns image/png, includes 1 setting, and runs in your browser on the device.
What files does Image to Grayscale accept and create?
Image to Grayscale accepts PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF files (image/png, image/jpeg, image/webp, image/gif, image/bmp, image/avif) and creates PNG files (image/png). The page includes 1 setting: Algorithm.
Do my files and data stay private?
Yes. Image to Grayscale runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How do I use Image to Grayscale?
Open Image to Grayscale, drop in your PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF file, choose any options, and click Convert. Your browser does the work locally and produces a PNG file you can save right away.
What is the maximum file size for Image to Grayscale?
Because Image to Grayscale runs in your browser, the maximum size depends on your device's available memory. Most modern phones and laptops handle files up to a few hundred MB without issues.