Saturday, October 18

6 Free Online Image Compressors

Image Compressors

With page speed a ranking SEO factor and consumers expecting exceedingly fast web experiences, it's crucial to get aggressive and take control of your image sizes to deliver a faster loading website to your users.

Image compression is either lossy or lossless: Lossy works by discarding information from the original file, and lossless retains all the original data (though, the file size tends to be bigger). There's a variety of image compression algorithms that take different approaches to reducing file size, and the tools listed below utilize a number of those to minimize the size of your images.

Whether it's JPEG, PNG, GIF or SVG, we've got you covered with this selection of 6 free online image compressors. All of them will help you compress your website's images, save bandwidth and improve your site's performance.

1. Smush.it

Smush.it is an online service from the Yahoo! Developer Network that optimizes your images. It uses lossless compression techniques, so the file size is reduced without changing the look or visual quality of the image.

The uploader supports JPEG, GIF and PNG files with maximum sizes of 1MB. The optimized results are available for download from a temporary URL, which is valid for up to 30 minutes afterwards.

2. CompressNow

CompressNow is a free online service that lets you upload images from your computer, choose a compression percentage and download the optimized image. It supports GIF, JPG and PNG formats.

The service also allows the drag and drop of multiple images from you computer, with a max upload of 10 images and a max individual file size of 3MB.

3. Shrink Pictures

Shrink Pictures allows you to resize pictures and choose the level of compression applied, and it supports JPG, GIF and PNG. You can select the maximum image dimension, apply special effects, and download the optimized images.

Shrink Pictures ensures privacy by using an automated script to remove any processed images from the server.

4. TinyPNG

TinyPNG enables advanced lossy compression for PNG images. It preserves full alpha transparency and reduces the file size by selectively decreasing the number of colors and bytes in the image.

The effect is nearly invisible, but it makes a large difference in file size. It takes 24-bit PNG files and converts them to much smaller 8-bit indexed color images, with all unnecessary metadata stripped as well.

5. JPEG Reducer

JPEG Reducer shrinks the sizes of your images and photos to make them load faster, and works by using lossy compression. However, you may not even notice that any changes have been made.

Just upload your image or enter its URL and press "Reduce It." You can then view the compressed images and thumbnails, and right-click the image to save it.

6. Image Optimizer

The Online Image Optimizer from Dynamic Drive lets you easily optimize GIFs, JPGs and PNGs so they load as fast as possible. The images can be converted from one file type to another, with an upload size limit of 2.86MB.

You can enter the URL of the image or upload it from your computers, choose your image conversion, optimize it and download the results.

From mashable