Most hex editors feature a column on the right, which shows the ASCII output of the bytes in the file. Right now the size of this image is 218 KB, which seems a little high considering its dimensions are 1 x 620. Any hex editor can be used, provided that it includes the ability to display the ASCII output of the bytes. There are some desktop hex editors like HxD or 0圎D, and there are also web-based hex editors. They also can show you bloat in your losslessly optimized images. Hex editors lets you examine the contents of binary files. Is there a way to do this? Yes! Today I will show you 2 ways: With a hex editor, and with the strings command. To actually you show them all the waste and bloat and unneeded crap that is sitting inside their JPEG or PNG image. While its great to tell someone that an image can be reduced by 20%, I have found that sometimes it is helpful for people to actually visualize what that savings looks like. This is a great way to lose page load wait by losing page content weight. And images have embedded thumbnails, you can see savings upwards of 50%-70%. For lossless image optimization, you can expect to consistently reduce the size of your image files by 5%-20% without impacting image quality. Luckily, they are super easy to optimize with free and/or open source tools. Images dominate the web in terms of both byte size and request count. I’m a big fan of image optimizations, and have written several posts about it.
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