An image is worth a thousand words.
Images are integral part of a blog. When it comes to optimization, it is really required to keep your image size reduced – as search engines like Google, are considering load time as an important factor in ranking. It also improves your site performance for the user.
In case of WordPress based blogs, there are lot of free plugins available from the plugin store. These plugins are very much handy that images will be automatically compressed, once you upload to your blog.
Here in BlashO, I am using the WP Smush, EWWW Image Optimizer.
With these plugins installed, I don’t need to worry about any kind of image size optimization.
However, there are cases where you may want to reduce your image to greater extent.
For example, while optimizing my blog’s home page, I found there are images with higher size. Even though these WordPress plugins installed, I could not reduce the image size further.
Hence I was looking for alternative ways to reduce the image size.
There are lot of sites which can help you to reduce image file size.
I explored many of them and compared, how much size they can reduce without much losing image quality.
I hope these sites may help you to reduce your images size, in case if you want to specifically optimize it greater extent.
The original image, I used for this comparison test has 147 kb.
Lets compare all these sites and see, how much it can reduce it.
You can upload your image. Choose the quality level (from Minimum file size to Best Quality). Select the image size, in case if you want to resize it. Click “Optimize Now!” and download the optimized image. Done.
Optimized, no file size change with default settings.
A specialized site to reduce JPEG image size. Choose your file, select the compression level (ranges between 0-99) and click “Optimize Photo”. It shows the reduced file that you can right click and “save as…”
Image size reduced to 46%
Supports 3 different file types: GIF, JPG, PNG. You can specify an online location of the file or choose from your PC. Select the output format and click “optimize”. It has upload size limit of 2.86 MB.
Once optimized, it shows the reduced file in different sizes. This is one of the best site and helps you to quickly reduce your image size (can choose from various reduced sizes).
Image size reduced to 66% (below this quality reduced much)
Not only PNG, it also supports JPG. You can drag-n-drop the file on the site and once you click “tiny png”, it optimizes the image. You can click the “download” link to save it.
Image size reduced to 51%
Yet another best site for image optimization. Once you upload your image, you can pick the output image quality and click “Apply” to save it. It is easy-to-use, you can just adjust the quality bar and see, how much file size it can reduce it for you.
Quality bar helps to compare and reduce. One of the best.
With the free version, you can choose the optimization mode between lossy and lossless. It just reduces the file size and you can save it by clicking “Download this file”. You can also save it as a .zip file
Image size reduced to 30%
This is one of the fancy site for image optimization. It supports 4 different file formats: JPG, PNG, GIF, SVG. You can also pick between Lossy and Lossless modes. It also shows the size/quality before and after compression. Nice tool.
Image size reduced to 41%
Once uploaded your image, you can choose various options like: size, sharpness, image quality (between 10-100), contrast, border etc. This is more than a compression tool.
Size reduced to 48%
With this site, you can reduce image size in 3 steps. Upload – Select New Size – Download. You can select output format: JPG, PNG, GIF and also, Image quality (in percentage % ).
Image Size Reduced to 55%
Supports PNG and JPEG. Only file size less than 2 MB. You can upload or specify an online URL of your image, click “Reduce It”. Done.
This is a resizer only.
There are lot more sites. However, when I compared all these 10 sites, I found below are the best sites to reduce your image size.
I was able to reduce,
- the file size from 147 KB to 47 KB using Optimizilla (~68% reduction)
- the file size from 147KB to 48 KB using Dynamic Drive (~67% reduction)
With Optimizilla, you can adjust the quality bar and compare, how far you can reduce the image size without much losing the quality.
With Dynamic Drive, it automatically reduces the image to different sizes. You can simply see, which one has better quality and download the best one.
Hope my comparison helps you to optimize an image file size without much losing quality.
Let me know, what tool you use?