Compress multiple images at once for free

Bulk Image Compressor

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🏎️ Fast

No messing around. It just works. Fast.

🆓 Free

There are ads, but no payments. Please disable your adblocker - it keeps the website free.

🕵️ Private

Everything is done on your computer. We never see your images.

🗜️ How to Bulk Compress Multiple Images

  1. Click the “Select Images” button above and choose the images you want to compress. You can also drag and drop your images onto the page.
  2. Choose the file format you would like to use. Some file formats also let you pick a compression level.
  3. Click the “Compress Images” button and wait for the images to be compressed.
  4. A zip file with your images will download automatically.

🤨 Why Bulk Compress Images?

In the fast-paced world of the internet, image compression plays a crucial role. Here’s why it’s important:

  1. Faster Webpage Load Times:
    • Compressed images load faster, enhancing your website’s speed.
    • Search engines favor speedy websites.
  2. Bandwidth Efficiency:
    • Reduced image sizes mean less data usage for your visitors.
    • Ideal for users on slower connections or limited data plans.
  3. Improved User Experience:
    • Quick-loading pages lead to a smoother and more enjoyable user experience.
    • Users are more likely to stay engaged and explore your content.
  4. SEO Boost:
    • Search engines consider page speed as a ranking factor.
    • Compressing images contributes to a better SEO ranking.
  5. Mobile Friendliness:
    • Essential for mobile users, compressed images cater to a diverse audience.
    • Responsive design coupled with optimized images ensures a seamless mobile experience.
  6. Storage Optimization:
    • Save server space by using smaller image files.
    • Efficient storage management is vital for website maintenance.
  7. Cost Savings:
    • Lower bandwidth usage can translate to cost savings, especially for high-traffic websites.

🗄️ Image File formats

Here’s a brief overview of the pros and cons of JPG, PNG, and WebP file formats in terms of image compression (there’s a more advanced overview of image file formats on the blog):



  • Widely supported, compatible with most devices and browsers.
  • Good for photographs and images with gradients.
  • Lossy compression results in smaller file sizes.


  • Lossy compression may lead to quality degradation over time.
  • Not suitable for images with transparency.



  • Lossless compression, maintains image quality.
  • Supports transparency (alpha channel).
  • Suitable for graphics, logos, and images with text.


  • Larger file sizes compared to JPG.
  • Less effective for photographs with complex details.



  • Developed for the web, provides good compression.
  • Supports both lossy and lossless compression.
  • Ideal for a balance between quality and file size.


  • May not be supported by all browsers (check compatibility).
  • Limited use in certain environments.

Remember, the choice depends on the specific requirements of your project. If you are displaying your images on a website then webp is probably the best. If you’re saving your images for display locally then PNG is a good choice.

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