World's simplest browser-based Portable Network Graphics (PNG) grayscale pixel checker. Just import your PNG image in the editor on the left, and on the right, you'll instantly get its status, whether the PNG is entirely grayscale or not. A green confirmation badge in the output area indicates a fully grayscale PNG, while a red notification indicates a non-grayscale PNG (at least one pixel is non-grayscale). Created with love by team Browserling.
World's simplest browser-based Portable Network Graphics (PNG) grayscale pixel checker. Just import your PNG image in the editor on the left, and on the right, you'll instantly get its status, whether the PNG is entirely grayscale or not. A green confirmation badge in the output area indicates a fully grayscale PNG, while a red notification indicates a non-grayscale PNG (at least one pixel is non-grayscale). Created with love by team Browserling.
This browser-based program determines whether a PNG image is grayscale or contains at least one color pixel. The program checks each pixel of the PNG by comparing its red (R), green (G), and blue (B) components. If all three components of a pixel are equal (R=G=B), then the pixel has a grayscale shade. In this case, the program displays a green status badge. Otherwise, the program displays a red badge as the pixel isn't grayscale. Additionally, it counts the number of non-grayscale pixels, prints their count, and provides information about each color pixel, which includes the color's hex code and pixel's (x, y) coordinate in the PNG (the upper-left corner is the 0, 0 point). Since there might be numerous colored pixels, in the options, you can specify the exact number of non-grayscale pixels to display in the status information. Png-abulous!
This browser-based program determines whether a PNG image is grayscale or contains at least one color pixel. The program checks each pixel of the PNG by comparing its red (R), green (G), and blue (B) components. If all three components of a pixel are equal (R=G=B), then the pixel has a grayscale shade. In this case, the program displays a green status badge. Otherwise, the program displays a red badge as the pixel isn't grayscale. Additionally, it counts the number of non-grayscale pixels, prints their count, and provides information about each color pixel, which includes the color's hex code and pixel's (x, y) coordinate in the PNG (the upper-left corner is the 0, 0 point). Since there might be numerous colored pixels, in the options, you can specify the exact number of non-grayscale pixels to display in the status information. Png-abulous!
This example analyzes a grayscale PNG image of a street scene. It loops through all the pixels and ensures that all pixels are in the grayscale color spectrum by comparing their red, green, and blue components. After analyzing all pixels, it concludes that it's indeed fully grayscale PNG and displays a green success badge. (Source: Pexels.)
In this example, we examine a PNG image of a flower that visually appears to be grayscale but in reality, it has several non-gray colors that the naked eye can't see. The program shows a red badge and informs us about the presence of 41 colorful pixels in it. It also prints a list of the first 20 colorful pixels with their hex codes and Cartesian coordinates that can be used for further analysis. (Source: Pexels.)
In this example, we upload a PNG image of mountains covered in snow. The sky part in the background has been made transparent, allowing this PNG to be overlaid onto other images or backgrounds. Despite the presence of transparency, the program still considers the PNG entirely grayscale because all the visible pixels, including those representing the mountains and snow, are shades of gray. The transparent pixels with the alpha channel value of 0 are ignored as they aren't visible. As a result, we get a green badge, verifying its grayscale format. (Source: Pexels.)
Edit a PNG in your browser.
Compare two or more PNG images.
Create an animation that slowly reveals a PNG image.
Convert a PNG image to an AV1 image (AVIF).
Convert an AV1 image (AVIF) to a PNG image.
Convert a PNG image to a High Efficiency Image File (HEIF).
Convert a Hide Efficiency Image File (HEIF) to a PNG image.
Convert a PNG image to an ICO icon.
Convert a PNG image to a TIFF image.
Convert a TIFF image to a PNG image.
Convert a PNG image to a PIK image.
Convert a PIK image to a PNG image.
Convert a PNG image to a PPM image.
Convert a PPM image to a PNG image.
Convert a PNG image to a BPG image.
Convert a BPG image to a PNG image.
Convert a PNG image to a FLIF image.
Convert a FLIF image to a PNG image.
Convert a PNG image to a Paint.net file.
Convert a Paint.net file to a PNG image.
Convert a PNG image to a Photoshop file.
Convert a Photoshop file to a PNG image.
Convert a PNG image to an SVG image.
Convert a PNG image to an PDF document.
Convert a PDF document to a PNG image (or multiple images).
Convert a PNG image to an EPS file.
Convert an EPS file to a PNG image (or multiple images).
Convert a PNG image to a JFIF image.
Convert a JFIF image to a PNG image.
Convert a PNG image to raw RGB values.
Convert RGB values to a PNG image.
Convert a PNG image to raw BGR values.
Convert BGR values to a PNG image.
Convert a PNG image to raw RGBA values.
Convert RGBA values to a PNG image.
Convert a PNG image to raw BGRA values.
Convert BGRA values to a PNG image.
Convert multiple PNGs to a GIF animation.
Convert an APNG animation to a GIF image.
Convert a GIF animation to an APNG image.
Convert an APNG image to a Webp image.
Convert a Webp image to an APNG image.
Convert an APNG image to an MP4 video.
Convert an MP4 video to an APNG image.
Convert an APNG image to an AVI video.
Convert an AVI video to an APNG image.
Convert an APNG image to a WMV video.
Convert an WMV video to an APNG image.
Extract all frames from an APNG image.
Play a PNG animation (APNG) frame by frame.
Change the playback speed of an animated PNG (APNG).
Change how many times an animated PNG loops.
Reverse the order of frames in an animated PNG (APNG).
Created animated PNGs (APNGs) from input images.
Check if the given PNG file is an animated PNG file (APNG).
Create a sprite sheet from all animated PNG (APNG) frames.
Create an animated PNG (APNG) from a sprite sheet.
Create Excel art from a PNG image.
Randomly distort data in a PNG file to make a glitched PNG.
Find all grayscale pixels in a PNG (grayscale mask).
Find all color pixels in a PNG (color mask).
Invert the alpha channel values in a PNG.
Shuffle pixels or pixel blocks in a PNG.
Sort pixels or pixel blocks in a PNG by color.
Break a PNG image into multiple pieces.
Generate a slideshow animation from multiple PNGs.
Generate a mosaic wall from multiple PNGs.
Convert a PNG into a hexagonal grid of pixels.
Convert a PNG into a triangular grid of pixels.
Create a Voronoi diagram from a PNG image.
Darken PNG corners compared to its center.
Create multiple reflections of a PNG.
Apply a Bayer filter on a PNG.
Make a PNG look like it was taken via night vision goggles.
Make a PNG look like it's spherical.
Run a PNG through the Mobius Transform.
Convert between RGB, CMYK, HSV, and HSL color spaces.
Convert between 8-bit, 16-bit, 24-bit, and 32-bit PNG depths.
Remove dithering from a PNG image.
Convert a PNG to an ASCII art image.
Convert ASCII art to a PNG image.
Convert a PNG to an ANSI art image.
Convert ANSI art to a PNG image.
Convert a PNG to a Braille art image.
Convert Braille art to a PNG image.
Create a PNG image from the given bytes.
Convert a PNG image to bytes.
Increase the quality of a PNG image.
Extract a 2d slice from a PNG.
Create a PNG that contains all possible RGB colors.
Find all textual information in a PNG image and extract it.
Given any 2D PNG, add 3rd dimension to it.
Quickly erase text (labels, captions) from a PNG.
Quickly delete a watermark from a PNG.
Salvage a PNG that has bad bytes in it and doesn't open.
Conceal a secret message in a PNG image.
Update meta data of a PNG file.
Delete meta data from a PNG picture.
Check if the given file is a valid PNG without errors.
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We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling we love to make people's lives easier, so we created this collection of online PNG tools. We created the simplest possible user interface for our tools and they are now used by millions of users every month. Behind the scenes, our online PNG tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!