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Image Optimization Tools

15 Best Free Image Optimization Tools for Image Compression

by Waseem Abbas on Jun 25, 2018

Do you want to compress your images before uploading them online? Sometimes you may have a large number of photos to be used on your website, so you need to optimize images. In this guide, we will share the 15 best free image optimization tools for image compression.

Software like Adobe Photoshop can be expensive and out of budget for many website owners. However, there are a variety of online tools that are free to use with amazing results.

Why you should optimize images? Uploading full size images may add some load time on your web page and it annoy your users. Optimizing your images will greatly help to speed up your website.

Let’s take a look on the best free image optimization tools for image compression:

1. JPEG Optimizer

JPEG Optimizer

JPEG Optimizer is a simple image optimization tool that allows you to upload and compress the photos online. The image compression level bar makes it easier for you to optimize your photos as you need.

You can also resize the images in JPEG Optimizer, so the image file size can be reduced and it loads faster on your site.

2. Optimizilla


Optimizilla manages to reproduce good quality in your images with lowest file size possible. You can compress your JPEG and PNG photos with this tool.

It allows you to upload up to 20 images and set the compression level for each photo separately. It shows you the before and after version in the form of a slider.

3. Kraken.io


Kraken is an amazing image compression tool that allows you to bulk upload photos and optimize them for the lowest file sizes. You can download the compressed photos one by one or in the zip format to save time.

It has a pro version for the advanced users that comes with a lot of other features like image resizing, multiple image sources, unlimited image sizes and more.

4. ImageRecycle

Image Recycle

ImageRecycle compress your JPEG, PNG and Gif images and the results are impressive. It has the option to drag and drop the photos to get them optimized. There’s a video presentation to understand more about this tool.

It also allows you to analyze your website and get the report that will help to understand which images need optimization for a good performance on your site.

5. CompressNow

Compress Now

CompressNow is a easy optimization tool on the internet. You can simply upload your JPEG, PNG and Gif images from the computer, set a compression percentage for the image and download it to use on your site.

This tool shows the optimization results on the right side, so you can move the compression level slider accordingly.

6. Trimage


Trimage removes the EXIF and metadata from the images and compress them to the highest levels possible. It allows you to optimize the JPEG and PNG image file types only.

7. Online Image Optimizer

Online Image Optimizer

Online Image Optimizer is a product of Dynamic Drive that allows you to easily optimize images of all major formats, so your photos load faster on the website.

You can also convert the images from one image type to another using this tool online.

8. Tiny PNG

Tiny PNG

Tiny PNG is one of the famous free image optimization tools with tons of possibilities to compress images for your site. This tool accepts JPEG and PNG images for compression.

It allows you to upload up to 20 images in one go. The image size for each image should not be more than 5 MB. After the compression, you can download the images in your computer or save them in Dropbox.

9. Resize Photos

Resize Photos

Resize Photos is another free image compression tool for image optimization. You can also resize the photos to use them on your site, email or forums.

Simply upload the images online and set the compression level between 1-100 to optimize images as you need.

10. GiftOfSpeed

Gift of Speed

GiftOfSpeed has tools to compress your PNG and JPEG images separately. It applies multiple image compression techniques to minimize the file sizes to lowest size possible.

It allows you to resize the images for a greater performance online.

11. Compressor.io

Compress io

Compressor.io make sure that you don’t loose the image quality and also get the high compression levels to reduce file size to maximum possibility.

It is an amazing tool and known for its flexibility to optimize JPEG, PNG, Gif and SVG files easily. Compressor.io has the ability to reduce file sizes up to 90% or even more.

12. JPEGmini


JPEGmini sends your images on a diet. It shrinks the file size of your images, so you can enjoy the best image loading speed online.

Upload your image and see the before and after effect with the slider. JPEGmini maintains the quality of the image after compression.

13. Compress.Photos

Compress Photos

Compress.Photos allow you to easily optimize JPEG and PNG images without losing the quality. It works great on the photos to compress the file size and makes it lighter.

You can upload bulk photos at once and optimize them online with Compress.Photos without much loss in quality.

14. Convert Image

Convert Image

Convert Image is an online image optimization tool to compress your JPEG images on the go. It allows you to convert the JPEG photos into other image formats like BMP, GIF, ICO, PNG and more.

15. PNGGauntlet

PNG Gauntlet

PNGGauntlet allows you to optimize your PNG photos. It is downloadable and combines with multiple compressors like PNGOUT, OptiPNG and DeflOpt to compress your images without effecting the image quality.

We hope this guide has helped you to find the best free image optimization tools for image compression. You may also want to check out our guide on how to optimize your WordPress images for SEO.

If your website visitors don’t stay long on your landing pages, check out OptinMonster’s powerful exit-intent technology. It’s really helpful!

If you like this guide, then please follow us on Facebook and Twitter for more free photography tips and resources.


  1. For me what works best on mac is a combination of Jpegmini and optimimage.
    I usually do it 2-3 times each for the same photo until I get what I want.

  2. I am just learning the basics of on-site SEO, I was surprised by how
    it was so in-depth-luckily I had a few useful blogs though
    Bookmarked your blog, I have to keep up to date with your posts

  3. Hello friends , I find a new online tools to compress my image size and i got speedup my page loading , i mean you should try it to reduce your image and speedup your webpage loading.

  4. I am using image compresion api’s for a while now . Tiny png and cloudinary are the best out there . I dont understand how cludinary did,nt make it to the list. No other vendor can resize and compress image faster and better then cloudinary . Cloudinary is a premium service by the way . But it deserves a look.

  5. A few days back i was searching/testing some image compressors and i found one new optimizer ” compressman.com “. What about this site? I think it’s pretty and what is your opinion?

    1. Hi Levan! I checked compressman.com and this tool really looks great! I compared it to other image compressor sites and it really beats all! I love it already, He is just my new hero ๐Ÿ™‚

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