10 Best Image Optimization Tools to Increase Website Speed

Updated September 12, 2024

Table of Contents

What Does Image Optimization Mean?

The image quality of the images you use on your website is reduced while reducing the file size. User experience is improved as image file sizes are made smaller.

Image SEO requires additional care. Your product content images or images can be more likely to rank higher in Google and other image search engines because of high-quality, quick-loading images.

The image optimization process includes correct file names, file types, thumbnails, and alt attributes in addition to compressing the file size and maintaining quality.

When Do You Need a WordPress Image Compression Plugin?

Since images are larger than plain text, they load more slowly and can cause your website to lag. On the other hand, the adage “a picture is worth a thousand words” is surely familiar to you. Your information becomes more interactive and engaging using images.

You must optimize your photos for the web if you want to increase the speed of your WordPress website. Enhancing your WordPress SEO and increasing traffic can be achieved by optimizing your photos to make your website load faster.

Using Photoshop or another image modifying program before uploading the image to WordPress is the best method to accomplish this. You now have far more control over the caliber of the photographs on your website.

Key aspects of image optimization

File Size Reduction: Image optimization’s main goal is to reduce the image’s file size. Better image files load more quickly, which is essential for reducing website loading times. Particularly crucial is this for mobile users with slower internet speeds.
Preservation of Quality: Image optimization techniques aim to preserve the image’s visual quality while reducing file size. Finding a balance between file compression and maintaining a respectable level of detail, color accuracy, and image clarity
Format Selection: The best file format for an image is frequently chosen for image optimization. JPEG, PNG, and GIF, each with its own advantages and disadvantages, are the standard image formats. The format is determined by factors like the desired level of compression, the required transparency, and image complexity.
Resizing: Images can occasionally have dimensions that are too large for the website on which they are intended to be used. Resizing photographs to match the precise measurements needed for a webpage is one method of image optimization that can lower file sizes and loading times.
Image Compression: Image files can be made smaller by using both lossless and lossy compression techniques. While lossy compression compromises some quality in order to achieve more significant reductions, lossless compression maintains image quality but may yield less significant file size reductions.

10 Best Image Compression Tools

Optimizing images is crucial for improving website performance, loading speed, and SEO rankings. Here’s a list of the 10 best image compression tools for 2025 that can help you reduce image sizes without sacrificing quality:

1. Optimizilla

Pricing: Free

The best optimization and lossy compression algorithms are combined to create the free online image compression tool Optimizilla. Only JPEG and PNG images can be uploaded, which is permitted.

Since this online image size converter is relatively simple, it offers no additional features. Optimizilla is a good choice if what you’re looking for is straightforward and you only have a small number of files.

Key Features of Optimizilla:

Supports Multiple Formats
Batch Processing
Adjustable Compression Levels
Drag-and-Drop Functionality

Support Formats:

PNG
JPEG

2. TinyPNG

Pricing: $25/Year

An online smart compression tool called TinyPNG. With lossy compression techniques, this image size compressor reduces image file size. It selectively reduces an image’s color density, reducing storage space by tenths of byte.

The partially transparent nature of TinyPNG is cool, though. Additionally, TinyPNG allows websites and apps to shrink their images, making them load faster and consume less space. Optimized PNG images can also be used.

Key Features of TinyPNG:

Lossy Compression
Batch Processing
API Integration
Minimal User Input Required

Support Formats:

JPEG
PNG

3. Compressor.io

Pricing: $50/year

Take a close look at Compressor.io if you want to find out how much of a high level of compression can save you hundreds of thousands of KB. It has a close to 90% file size reduction. It uses lossy compression for other file types while compressing images without losing pixels. The maximum file size is 10 MB, though.

Compressor.io Similar to some other tools on this list, before and after sliders are provided by. This enables a side-by-side comparison of the original and optimized images. It has the convenient option to save the processed images directly to Google Drive or Dropbox in addition to the standard download.

Key Features of Compressor.io:

Supports Multiple File Formats
Lossless and Lossy Compression
Real-Time Image Comparison
Single Image Processing

Support Formats:

JPEG
PNG
SVG
GIF

4. Imagify

Pricing: $9.99/Month

Imagify stands out as a powerful WordPress image optimization tool. Its main goal is to increase website speed by intelligently reducing the image file size without sacrificing quality. This optimization process speeds up page loading and improves user experience. We’ll go over the key benefits and pricing options that make Imagify the preferred choice for WordPress image optimization later in this article.

Key Features of JPEG.io:

Automatic Image Optimization
Compatibility with Popular Plugins
Wide Range of Supported Formats
Image Resizing
API Integration

Support Formats:

5. Optimole

Pricing: $19/Month

Another excellent WordPress image compression plugin is Optimole. Quick account creation and setup of the API key are necessary for this plugin. It’s straightforward to use after that and gives you complete control over your image optimization.

Because Optimole uses an image CDN, your visitors will be able to download your images quickly. Your images are delivered to your website visitors in the ideal size thanks to a CDN. It is simple to change the compression settings for individual images because you can view all of your optimized images in one dashboard. It allows you to change things like lazy loading, large image resizing, and other things. Even a unique feature allows you to automatically watermark your photos. This is a great feature for photographers who want to protect their images.

Key Features of Optimole:

Automatic Image Optimization
Global Content Delivery Network (CDN)
Lazy Loading
Image Format Conversion

Support Formats:

JPEG
PNG
WebP

6. JPEG Optimizer

Pricing: No Specific Pricing

When a large number of images need to be compressed simultaneously, JPEG Optimizer is a good option. It can handle up to 20 simultaneous requests, which is double what Compress Now and Optimole can do.

We reduced the default compression to 65% in order to maintain consistency with the previous Compress Now test, which is set to 80%. Between 1-99% of the time, you can change it. We were able to compress the image to almost half of its original size at the 65% level, and the resultant quality didn’t seem to change.

Key Features of JPEG Optimizer:

JPEG Compression
Image Resizing
Customizable Optimization Levels

Support Formats:

JPEG
PNG
GIF

7. EWWW Image Optimizer

Pricing: $25/Month

As a well-known WordPress image optimization plugin, EWW Image Optimizer plays a significant role in lowering image sizes and increasing website speed. Website owners, bloggers, and developers who want to improve their WordPress-powered websites with effective image optimization favor this plugin. Let’s take a look at the compelling features and pricing options for EWWW Image Optimizer.

Key Features of EWW Image Optimizer:

Unlimited File Size
Support for Multiple Formats
Server-Side Optimization
Bulk Optimization
Compatibility
CDN with Easy IO

Support Formats:

JPEG
PNG
GIF
WebP

8. ImageRecycle

Pricing: $10/Month

ImageRecycle is an online image and PDF optimization tool designed to reduce file sizes while maintaining high quality. The tool offers automatic image optimization through plugins for platforms like WordPress, Joomla, and Shopify.

ImageRecycle also includes a drag-and-drop interface for easy manual compression. With both free and paid plans, it caters to individuals and businesses looking to improve website performance by reducing load times and saving bandwidth.

Key Features of ImageRecycle:

Multiple File Format Support
Optimization for Unlimited Websites
Seamless CMS Integration
Extensions for Joomla and Magento
API Integration

Support Formats:

JPEG
PNG
GIF
PDF

9. JPEG.io

Pricing: Free

JPEG. The best way to compress an image using any recognized format is via io. Additionally, it provides options for reducing and compressing PSD files. Before releasing the images for download, it compresses and converts the images into JPEG format.

Users can upload files from cloud storage and download the compressed images as zip files. It can reduce PNG image size by up to 17% and JPEG image size by up to 65% without sacrificing quality.

Key Features of JPEG.io:

Cloud-Based Conversion
Drag-and-Drop Interface
Free to Use
Automatic Optimization

Support Formats:

PNG
GIF
SVG
BMP
EPS
PSD
TIFF
WebP

10. Smush

Pricing: $7.50/Month

Smush Image Compression and Optimization, a plugin created by WPMU Dev, is available in both premium and free versions.

You’ll be taken to the plugin’s Settings page after installing the plugin, where you can view the number of images that have already been optimized, set the thumbnail sizes you want to adjust, set the desired resizing for the images, and more.

Unlimited images can be optimized in the plugin’s free version, but no more than 5 MB can be saved for each individual image.

Key Features of Smush: