Compress JPEG images to the exact KB you need

Get photos under the size limit for exam forms, job applications, email and WhatsApp. Free, and your images never leave your device.

100% freeNo uploadExact KB targetBulk + ZIP
Select images or drop them here JPG, PNG, WebP, iPhone HEIC · multiple files OK · you can also paste (Ctrl+V)
KB
× px (optional)

How to compress a JPEG

  1. Choose your images. Click the box above, drag files in, or paste a screenshot.
  2. Set a size. Type the maximum KB you need, or pick a quality level instead.
  3. Download. Save each image, or all of them at once as a ZIP.

Why use CompressJPEG.site?

Exact file size. Many online forms accept only images under a certain size. Instead of guessing a quality setting, you enter the size you need and the tool fits the image under it while keeping the best possible quality.

Private by design. Most compressors upload your photos to their servers. This one processes everything in your browser, so personal documents like ID photos and signatures stay with you.

Works on any device. Use it on your phone, tablet or computer, with no app to install.

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Frequently asked questions

Are my images uploaded to a server?

No. Compression runs entirely inside your web browser using JavaScript. Your photos never leave your device, so the tool is private and also works offline once the page has loaded.

How do I compress a JPEG to a specific size like 20KB or 50KB?

Choose 'Target size', type the maximum size in KB (or tap a preset), then add your image. The tool automatically finds the best quality that fits under that size, and reduces the dimensions only if needed.

Is CompressJPEG.site free?

Yes. The compressor is free to use with no sign-up, no watermark and no limit on the number of images.

Can I compress PNG or WebP images?

Yes. You can add PNG, WebP and most other image formats your browser supports. The result is saved as a JPG, which is usually much smaller. Transparent areas become white.

Will compression reduce the quality of my photo?

JPEG compression removes detail that is hard to see. At moderate sizes the difference is barely noticeable. For very small targets such as 10–20KB, the tool also reduces the pixel dimensions to keep the image clear.

Does the tool remove EXIF data from photos?

Yes. Compressed images do not keep EXIF metadata such as camera details or GPS location, which also improves privacy.