JPEGmini Shrinks Photos' File Sizes Online, Without Reducing Quality

Free web app JPEGmini can quickly take your JPEG images and reduce their file sizes by up to 80 per cent — all within your browser and while preserving their image quality.

We've previously featured great image compression tools like RIOT that serve the same purpose, but JPEGmini is unique in that you don't have to install anything. It works very simply and surprisingly fast: upload your image and the web app automatically compresses it, showing you a side-by-side view of the original and the compressed image.

The app only works with JPEGs, but it's handy for quickly shrinking your photo sizes so you can email them faster. The file size savings can be very dramatic.

Registering for a free account gives you more features like uploading full albums and sharing on Picasa and Flickr.

JPEGmini [via Internet and Website Design]


    Awesome, but what does it remove from the file if not the quality? Must be something specific to the jpeg format itself. I think i will try this app.

      Since it is shrinking the image, it doesn't necessarily mean it's removing data. When an image is reduced it looks at things like DPI, Pixel size and compression. Beside that, the eye tends to adjust easily to images that are smaller than the original. #]

        It doesn't shrink the image dimensions, just its file size. You can see for yourself by downloading the sample images from the site.

    I like this, it saves me breaking out Photoshop! #]

    "The JPEGmini algorithm imitates the perceptual qualities of the human visual system, ensuring that each photo is compressed to the maximum extent possible by removing redundancies, without creating any visual artifacts in the process."

    Fascinating. Like a high-pitched dog whistle -- humans can't tell what's going on. :) increases the jpeg compression ratio but stops before the artifacts become obvious, or are they doing something more fancy?

    Unfortunately it's still jpeg compression so it's still lossy compression - this would be good for cutting down on bandwidth use, but not as good to run your whole photo collection through.

      Lossy is only a problem when you enlarge! #]

        That's a stupid thing to say, you may as well say "Lossy mp3s are only a problem when you turn the volume up".

          Mate I am a trained graphic artist! So you explain to me how reducing an image reduces quality... and if you can't, then shut the hell up!

    I wish there was a good similar service for videos.

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