JPEG Compressor

This free online JPEG compressor converts your lossless PNGs or high quality JPEGs into lossy JPEGs with the smallest filesize possible.

  1. Select a file

    For best results use high quality source material that hasn't been compressed before.

  2. Drag & Drop

    Drag your image file onto this website. You can do this anytime.

  3. Paste image URL

    Paste an image URL from your clipboard into this website. You can do this also on the image processing page.

  4. Paste Base64 Data URI

    Paste a Base64 Data URI from your clipboard into this website. You can do this also on the image processing page.

  5. Paste image data

    Paste an image from your clipboard into this website. You can do this also on the image processing page.

  6. Use this Photoshop JSX-Script

    Use the script to send an image from Photoshop to compress-or-die.
    Copy it to the Photoshop Scripts folder. Overwrite what’s there if you’re asked.
    Windows: C:\Program Files\Adobe\Photoshop CS...\Presets\Scripts
    Mac OS X: Applications/Photoshop CS.../Presets/Scripts
    Restart Photoshop.

Allowed file formats: JPEG, PNG, GIF, WebP, SVG (max. 8 MiB)

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  • State-Of-The-Art JPEG compression algorithm
  • Separated settings for luminance and chrominance
  • Individual influence on the quantization tables
  • Color subsampling settings
  • Selective Blur preprocessing
  • Metadata (EXIF, IPTC & ICC) Removal
  • Automatic resolution conversion to inches for better application support
  • Clean color space conversion from CMYK
  • Converts to standard color profile sRGB-IEC61966-2.1
  • Gamma correction to 2.2
  • Lossless auto-rotation based on EXIF meta data
  • Alpha channel support
  • Selective quality support
  • Fuzzy whitespace trimming
  • Selection of quantization tables
  • Cropping to 8 pixel grid
  • For the technical enthusiats: Uses imagemagick, mozjpeg, exiftran, exiftool, puppeteer and a lot of custom code.

ArticleThe big image compression tool comparison

There are a lot of articles about online image compression tools in the net, most of them are very superficial. Usually they end with a simple: "It generates smaller pictures, so it's got to be better."

Learn why such statements are most of the time meaningless, understand the technical background, and find out which tool you should use as of today.

18 min read

Read article


Hi all, COD users. Just added in the interface you can change the background of transparent images to better estimate how the image looks on different backgrounds. Also, there is now the ability to sharpen color edges of WebP images, which is close to a JPG 1x1 color subsampling.

2021-11-2203Bielefeld, Germany