optimize images

How to optimize images of a website (Without losing quality)

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Did you know that optimizing your images before uploading to WordPress may have a big impact on your website speed? And do you ever optimize images of your website?

When starting a new blog, many of the beginners simply upload images on their own without optimizing the images for web. These large image files make your website more slower than you think.

You can fix this by using image optimization best practices as part of your regular blogging routine.

Today I am going to show you , how to optimize your images for faster web performance without losing it’s quality. We will also share automatic image optimization plugins for WordPress that can make your life easy , using this plugin you don’t have to optimize the pictures it will automatically optimize it in its own.

optimize images

Since this is a complete guide on picture advancement for web, we have made a simple to follow chapter by chapter list:

What is Image Optimization? (Optimize versus Unoptimized Images)

Image optimization is a process of saving and delivering images in the smallest possible file size without reducing the overall image quality.

While the process sounds complex, it’s very simple nowadays. You can utilize one of the many picture improvement plugin and tools to naturally pack pictures by up to 80% with no noticeable misfortune in picture quality.

Here’s an illustration of improved versus unoptimized picture:

Screenshot 2021 02 02 112505

As you can see here, after optimizing properly, the same image can be 65% smaller than the original without any lossing in quality.

How does Image Optimization works?

In simple terms we can say that , image optimization works by using compression technique like “Lossy” and “Lossless” which actually helps to reduce the overall file size without any noticeable loss of quality.

What’s the significance here to Optimize Images?

If you ever received a recommendation to optimize images by your WordPress hosting support or by a speed test tool, then all it means is that you need to reduce the file size of your images by optimizing them for web.

Why is Image Optimization Important? What are the Benefits of Image Optimization?

While there are numerous advantages of optimizing your pictures, underneath are the best ones that you should know to optimize images:

  • Quicker site speed
  • Improved SEO rankings
  • Higher in general transformation rate for deals and leads
  • Less capacity and transfer speed (which can diminish facilitating and CDN cost)
  • Quicker site reinforcements (likewise lessens cost of reinforcement stockpiling)

Outside of video, pictures are the following heaviest thing on a website page. As indicated by HTTP file, pictures make up on normal 21% of an all out page’s weight.

Since we realize quick sites rank higher in web crawlers (SEO) and have better transformations, picture streamlining is something that each business site should would on the off chance that they like to succeed on the web.

Presently you may be thinking about how enormous of a distinction can picture advancement truly make?

As per a Strangeloop study, a one-second deferral in site load time can cost you 7% of deals, 11% less site hits, and 16% diminishing in consumer loyalty.

If these aren’t enough reasons to speed up your website, then you should know that search engines like Google also give preferential SEO treatment to faster loading websites.

This means that by optimizing your images for web, you can both improve website speed and boost WordPress SEO rankings.

How to Save and Optimize Images for Web Performance?

The key to successful image optimization for web performance is to find the perfect balance between lowest file size and acceptable image quality.

The three things that play a huge role in image optimization are:

  • Image file format (JPEG vs PNG vs GIF)
  • Compression (Higher compression = smaller file size)
  • Image Dimensions (height and width)

By choosing the right combination of the three, you can reduce your image size by up to 80%.

Let’s take a look at each of these process in more details.

1. Image File Format

For most website owners like you and me, the only three image file formats that really matter are JPEG, PNG, and GIF. SO Choosing the right file type plays an important role in image optimization system.

To keep things simple, you want to use JPEGs for photos or images with lots of colors, PNGs for simple images or when you need transparent images, and GIF for animated images only.

For those who don’t know the difference between each file type, PNG image format is uncompressed which means it is a higher quality image. The downside is that file sizes are much larger.

On the other hand, JPEG is a compressed file format which slightly reduces image quality in order to provide a significantly smaller file size.

Whereas GIF only uses 256 colors along with lossless compression which makes it the best choice for animated images.

On WPBeginner, we use all three image formats based on the type of image.

2. Compression

The next thing is image compression which plays a huge role in image optimization.

There are different types and levels of image compression available. The settings for each will vary depending on the image compression tool you use.

Most image editing tools like Adobe Photoshop, GIMP, Affinity Photo, and others come with built-in image compression features.

You can also save images normally and then use a web tool like TinyPNG or JPEG Mini for easier image compression.

Although it’s a bit manual, these two methods allow you to compress images before uploading them to WordPress, and this is what we do on WPBeginner.

There are also several popular WordPress plugins like OptimoleEWWW Image Optimizer, and others that can automatically compress images when you first upload them. Many beginners and even large corporations prefer to use these image optimization plugins because it’s easy and convenient.

We will share more about these WordPress plugins later in the article.

3. Image Dimensions

Normally, when you import a photo from your phone or a digital camera, it has a very high resolution and large file dimensions (height and width).

Typically, these photos have a resolution of 300 DPI and dimensions starting from 2000 pixels and more. These high-quality photos are well-suited for print or desktop publishing. They are not suitable for websites.

Reducing file dimensions to something more reasonable can significantly decrease image file size. You can simply resize images using an image editing software on your computer.

For example, we optimized a photo with 1.8 MB original file size, 300 DPI resolution, and image dimensions of 4900×3200 pixels.

We chose jpeg format for higher compression and changed dimensions to 1200×795 pixels, and it reduced the image file size to 103 KB. That’s 94% less than the original file size.

Now that you know the three important factors in image optimization, let’s take a look at various image optimization tools for website owners.

Best Image Optimization Tools and Programs

As we mentioned earlier, most image editing software come with image optimization and compression settings.

Outside of the image editing software, there are also several powerful free image optimization tools that you can use to optimize images for web (with just a few clicks).

We recommend using these tools to optimize images before you upload them to WordPress, specially if you are a perfectionist.

This method helps you save disk space on your WordPress hosting account, and it guarantee the fastest image with the best quality since you manually review each image.

Adobe Photoshop

Adobe Photoshop is a premium software that comes with a feature to save images optimized for the web. Simply open your image and click on the “File » Save for Web” option.

This will open a new dialog box. On the right, you can set different image formats. For JPEG format, you will see different quality options. When you select your options, it will also show you the file size on the bottom left.


GIMP is a free and open source option in contrast to famous Adobe Photoshop. It very well may be utilized to upgrade your pictures for the web. The drawback is that it isn’t as simple to use as some different arrangements on this rundown.

To begin with, you need to open your picture in GIMP and afterward select File » Export As alternative. This will raise the save record exchange box. Give your record another name and afterward click on the fare button.

This will raise picture send out choices. For jpeg documents, you can choose the pressure level to lessen record size. At last, click on the fare catch to save the upgraded picture document. it is one of the best way to optimize images for your website.


TinyPNG is a free web application that utilizes a keen lossy pressure method to lessen the size of your PNG records. You should simply go to their site and transfer your pictures (basic drag and drop).

They will pack the picture, and give you the download connect. You can utilize their sister site, TinyJPG, for JPEG picture pressure.it is one of the best way to optimize images for your website.

They additionally have an expansion for Adobe Photoshop which is the thing that we use as a feature of our picture altering measure since it consolidates the most awesome aspect TinyPNG and TinyJPG inside Photoshop.

For engineers, they have an API to change over pictures naturally, and for novices they have a WordPress module that can consequently do it for you (more on this later).


JPEGmini utilizes a lossless pressure innovation which fundamentally decreases the size of pictures without influencing their perceptual quality. You can likewise look at the nature of your unique picture and the compacted picture.it is one of the best way to optimize images for your website.

You can utilize their web form for nothing, or buy the program for your PC. They additionally have a paid API to computerize the interaction for your worker.


ImageOptim is a Mac utility that permits you to pack pictures without losing any quality by finding the best pressure boundaries and eliminating superfluous shading profiles.it is one of the best way to optimize images for your website.

Windows alternative to this is Trimage.

Best Image Optimization Plugins for WordPress

We believe that the best way to optimize your images is by doing it before uploading them to WordPress. However, if you run a multi-author site or need an automated solution, then you can try a WordPress image compression plugin.

Below is our list of the best WordPress image compression plugins:

  1. Optimole – popular plugin by the team behind ThemeIsle.
  2. EWWW Image Optimizer
  3. Compress JPEG & PNG images – plugin by TinyPNG team mentioned above in the article.
  4. Imagify – plugin by the popular WP Rocket plugin team.
  5. ShortPixel Image Optimizer
  6. WP Smush
  7. reSmush.it

Using any of these WordPress image optimization plugin will help you speed up your website.

Final Thoughts and Best Practices for Image Optimization

If you’re not saving images optimized for web, then you need to start doing so now. It will make a huge difference on your site speed, and your users will thank you for it.

Not to mention, faster websites are great for SEO, and you will likely see an increase in your search engine rankings.

Outside of image optimization, the two things that will significantly help you speed up your website is using a WordPress caching plugin and using a WordPress CDN.

Alternatively, you can use a managed WordPress hosting company because they often offer both caching and CDN as part of the platform.

We hope this article helped you learn how to optimize your images in WordPress. You may also want to see our guide on how to improve your WordPress security and the best WordPress plugins for business websites.

See Also : Best ways to optimize your blog post for getting quick adsense approval


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