Ten Free Online Image Compression and Optimization Programs

Optimized-frost2All images ought to be optimized and re-sized prior to uploading them into your blog. When you decrease the file size for images before you insert them into your blog, uploads and pages will load faster,  you can fit more images into the same space, and using the correct tools means you will not compromise the quality of the image.

I have previously reviewed and blogged about several free image optimization and resizing  programs bloggers can download and use locally. This post is aimed at the programs  that are available to us online.

The image I use above is an example:  Original Image 962 x 762  -179 KB

arrow(Optimized in 0.14 seconds) using Image Optimizer
150 x 118
4 KB

Types of Images

  • JPG works best for images with gradients such as photographs.
  • GIF are best for blocks of repetitive color including logos, line art, and illustrations with type.
  • PNG should be used to preserve partial transparency and a large amount of colors. PNG images often take up more space, so try the GIF format first to see if it works well for your image. From: Media Library » Image Optimization

(1)  picmonkeyFree picture editor! No registration required. Whether you want to touch up a profile pic, try a new effect, or use the collage maker.

(2) Image Optimizer – Using this online service, you can resize, compress and optimize your image files online for free.  It’s fast. Compress images in bulk. You can now download image optimizer on your computer and resize and compress your images with a single click.

(3) iResize.com is a fast and free, simple-to-use online image resizing tool. With the increase of megapixels in today’s newest digital cameras, e-mailing or posting your photos on the web can prove to be quite the task. Luckily, our free web tool allows you to easily reduce the size of your photo by pixels and bytes. There is nothing to download or install. iResize.com is completely web-based and works in all of your favorite web browsers and operating systems.

(4) myImager.com – Online Image Editor – free everything online image editor. Upload or call images from anywhere on the web and edit them freely with the the dozens of tools and filters that we offer! This is a 100% free service, offered by the great people at Cool Archive. There are image file size limits. Files can not be larger than 500 KBytes. Also, all images are deleted daily at 12:00 AM PST due to limited hard drive space. So please save the images to your own computer after you are done.

(5) Online Image Optimizer- GIF, JPG, and PNG
Image Optimizer lets you easily optimize your gifs, animated gifs, jpgs, and pngs, so they load as fast as possible on your site.  Furthermore, you can easily convert from one image type to another. Upload Size limit: 300 kB.

(6) Pic ResizePicResize supports JPEG, GIF, and PNG image format.There are  options for resizing: 25%, 50%, 75% and 100% and you can  customize any size. Special effects can be applied as well.

(7) Reduce load time by optimizing graphics with GifBot
Reducing image size will reduce download time.

(8) Shrink Pictures – Original images can be up to 6Meg in size means you can use photos direct from your 8 megapixel Digital Camera. Original image can be jpg, gif or png one image at a time. All resized images are automatically converted to jpg.

When you need to resize more than 1 photo at a time use BatchPhoto. This free trial software is capable of not only resizing a batch of photos it can also do several other tasks to your batch of photos as well such as renaming.

(9) Smush.it™ – Smush.it uses optimization techniques specific to image format to remove unnecessary bytes from image files. It is a “lossless” tool, which means it optimizes the images without changing their look or visual quality. After Smush.it runs on a web page it reports how many bytes would be saved by optimizing the page’s images and provides a downloadable zip file with the minimized image files. Yahoo! YSlow Smush.it is included with YSlow and is no longer available as a separate download.  Note: Try it out online  (*Limit to 5 images).

(10) Web Resizer is a  free online image resizer that helps you optimize photos for web or email. Easy to use. Reduce image size; crop photos; sharpen; resize – change width and height; rotate;adjust contrast, brightness, saturation; convert photo to black and white; add a border; no registration required.


43 thoughts on “Ten Free Online Image Compression and Optimization Programs

  1. Again, many thanks TT. Support were most helpful, and pointed out where I had just one step back to front. It’s the little things that make all the difference. All is well now.

    1. @lifemagician
      Yes, it’s the little things that can trip us up. Thanks for coming back and letting me know Staff helped you sort this. Happy blogging. :)

  2. Timethief,

    Maybe you have some advice for a total computer illiterate.

    I am looking at inserting some images in my my wordpress blog. Have read much in the FAQ, Getting Started and the Forums, but am very confused. That’s how I ended up here.

    There appear to be quite a few resizing programs to download. I have looked at many of them. But no way can I work out which one to get. I don’t even understand the terminology in most of them.

    How do I know how big a picture is in mb or kb or pixels? Mine are all the same size in my documents… taken with my digital camera.

    So what would you suggest that would fit into the ‘photo resizing for dummies’ category?

    Lifey who has no idea where to go from here

    1. @lifemagician
      I don’t use a desk to application for image resizing. I use free image editors that are available online (see above). When it comes to uploading images into wordpress.com posts and pages the support documentation is here http://en.support.wordpress.com/images/

      If you need more help then you can read the posts on my Popular Posts page – scroll down to “Images and Media” http://onecoolsitebloggingtips.com/popular-posts/

      If you are having trouble aligning multiple images on a post or a page then these posts will be helpful:

      If you need further help then post to the support forum. :)

      1. Thank you for your help. I have read some of what you have posted above, but after a short while I get lost in the jargon…. The support page was helpful, up to a point. The first three steps are the same as I am experiencing, but from there on, what I get is not what is shown in the examples.

        May I mention a specific here, as I have now successfully uploaded some pics (have no idea how to find out if they are the required size), and even re-sized some to fit the space available.

        But I have struck a brick wall with one, where I only want part of the photo published.

        Using the link for support that you posted, to download photos off my computer, I don’t have any problem with steps 1 thru 3.

        On completion of step three the ‘Add an Image’ window shows the image, (together with the boxes for title, description, etc.).

        Immediately below the image it has a button ‘edit image’.

        That button then brings up the image with the ‘crop’, ‘rotate’, ‘flip’, etc. buttons above the image, and ‘cancel’ and ‘save’ buttons below the image. I want to crop the image.

        I click on crop, and then on the image, which then allows me to draw a box around that part of the image I wish to insert into my blog. Next I click on the ‘save’ button immediately below the image. (Up to this point I think I am pretty clear that what I am doing is correct.)

        The title is correct. I leave all other boxes empty.

        The ‘alignment’ and ‘size’ default to ‘center’ and ‘full size’. I have left them as they are. (Should I be changing these?)

        Immediately below that, there is a button ‘Insert in Post’ and a ‘delete’ link next to it. When I have clicked on ‘Insert into Post’, the image which shows in my blog is the original uncropped image.

        Down the very bottom of this ‘Add an Image’ window there is a button marked ‘Save all changes’. When I have clicked on this, and then on ‘Insert into Post’, the the image which shows in my blog is the original uncropped image.

        Can you tell me what I am doing wrong? How do I get only that part of the image I want, to show?

        Lifey who is most appreciative of your assistance

        1. @lifemagician
          I’m sorry to say that I cannot help you with this. :( I think you should copy and paste this comment into a support ticket and send it to Staff so they can sort it for you. http://en.support.wordpress.com/contact/
          Best wishes for a happy outcome.

          1. Thank you Timethief, have now done that.

  3. nice article , well done TT

    1. You’re welcome and have a happy holiday season. :)

  4. I prefer to use GIMP, from GIMP.com,
    It allows me to not only adjust the size, but manipulate the photo in many different ways.

  5. Just stop by to say hello.

    Have a Wonderful Weekend!

    You Deserve the Best!

  6. Useful info from you again! Thank you!

    1. @paddythflea
      You’re welcome and happy blogging.

  7. @Maragaret
    I don’t consider them to be better than photoshop simply because I’ve never used it and I’m not in a position to compare them. It’s always a good idea to have your originals stored but that need not be on your computer. You can find many free images hosting services on my Resources page. I have reviewed in two separate posts programs that require you to download programs and use them locally on your own computer, as well as those that can be accessed online. Those that can be accessed online do not have access to your computer.

    1. Timethief,

      There is so much information here to help us out….. You have done excellent research and your organization of all this material should help so many….. Thank you for putting this together so that we can understand it and be aware of what is out there.


      1. @Maragaret
        Thanks for the positive feedback. It’s good to hear that my efforts to locate free resources and share them with other bloggers are not in vain. You’re welcome. :)

  8. Timethief,

    When you helped me with a photo problem not too long ago, I used Adobe Photoshop to resize because that’s what I have. And it worked. Are the online programs you listed better in some way? Do I need to save the original in the pictures on my computer and resize a copy? Does the resized copy remain resized in my picture folder?

    Is the free program gaining access to one’s computer or does one upload the photo to get resized online?

  9. good day, this site is one of my favorites, the color and the heated discussion make me feel like I have come to a popular attraction.

    Thank you for the big heart and wise minds.

    1. @jingle
      “heated discussion”? surely you jest.

  10. TT,

    Great tips. I use myimager to resize things and that works well. On top of this, ALL WP users should use the Turbo plugin from Google to speed up their site. I installed it and my page loads in about 5 seconds!

    If you haven’t done a post on image editors.. I highly reccomend Picnick.com and Fotoflexer.com, both with a powerful array of fonts, effects, editing tools, and layering options similar to Photoshop. Since I don’t have Photoshop it’s been a life saver for designing headers.

    1. @jesseomun
      Thanks for sharing what you use with me and my readers. I apprreciate it.

  11. I’m going to give these a try. After reducing the size of images first via IrfanView, I’m not always pleased with the results.

    1. Hello Ian,
      Please share your feedback with us on the ones you try out.

  12. G’day timethief
    I never realized there were so many. I use one called fotosizer it is a free download, very quick and efficient it can downsize full folders.
    Where do you get that very interesting live traffic feed widget from?

    1. @pommepal
      I have included fotosizer on my resources page. :)
      The live traffic feed widget is from feejit. As this is a wordpress.com blog I use the HTML version, rather than the javascript version which we cannot use on wordpress.com blogs.

  13. I went for image optimization since I started blogging to reduce the size and hence decreasing page’s loading time. Those tools are great although I am using a desktop one which is ‘IrfanView’ since I am fan of from the 90s of the 20th century :)

    1. @Hicham
      I do know IrfanView. I have used and reviewed it along with several other free desktop downloads to compress, optimize and re-size images in the past. This time I was aiming only at the online progams available to us.

  14. hello ..
    want to exchange links with me?
    if you agree put my links on this website ..
    and confirmation to me, then I can place your link on my blog ..

    thank you for your attention

    1. @Resa
      I’m not doing any reciprocal link exchanges. If you read the post I link to carefully you will understand why that is, and why linking only to similar blogs that have contents directly related to your own is good natural linking practice. The truth is that what every blog needs is backlinks. We bloggers can do each other a far greater service by creating posts of our own and backlinking to authoritative posts in the same niche than we do by entering reciprocal link exchanges.

  15. This is a useful and timely reference. I’ve been very concerned lately about file sizes since I love to use multiple images in one post. Also our new Thesis theme involves homepage thumbnails for many posts. Simply setting smaller width and height does not reduce the large image file! So thanks — I added this post to my blogspot toolbox for images.

    1. Hi SBA,
      You raise an important point. Not all bloggers understand that simply making an image smaller does not compress and optimize it and that’s one of the reasons I created this post. Your observation about timeliness and usefulness seems to be right on because my stats indicate large numbers of readers are visiting this post. Last but not least, thanks so much for adding a link to this post to your toolbox. I also have a Image optimization and resizing (free programs) section on my resource page.

  16. I prefer using a local tool, like pngcrush and/or pngout. It’s great for blogs because the PNG format is already very small, and the photos are hi-res. And even better if you can leverage Photobucket to host your blog’s photos, which should make your site a bit faster. Firefox has a PhotobuckeT uploader addon to make this very easy.,

    1. @JP
      I aimed this post at services that are available for use online. I’ve previously tried several free local programs and I blogged them but not the three you indicate so I’ll add them to my resources page. Thanks for sharing them with us. :)

  17. hey i just use it, and its really cooll

    1. @ brangkas708
      You didn’t say which online service you used but I’ve tried them all. I’m gald to hear you liked the product you got from the one you used. :)

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