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Compress Image

Reduce photo file size without visible loss of quality.

Your files never leave your device.

Settings Changes apply instantly
75%
Smaller fileBetter quality

Reducing the size in pixels saves the most space for photos from phones and cameras.

When to use it

Use the image compressor whenever a photo is bigger than it needs to be: a form rejects your upload, an email bounces because the attachment is too large, your website loads slowly, or your phone is running out of space. Photos straight from a phone are often 3 to 8 MB because they are saved at very high quality and full camera resolution. Most of that data is invisible on a screen, so it can be removed safely.

How to compress images

  1. Tap Choose images, or drag JPG, PNG or WebP files onto the box. You can pick several at once.
  2. The images are compressed straight away. Each one is listed with its original size, new size and the percentage saved.
  3. Adjust the Settings if you want. Changes apply instantly, so there is no need to start again:
    • Quality sets the balance between file size and detail.
    • Save as keeps the original format or switches to JPG, WebP or PNG.
    • Maximum size shrinks the dimensions, for example to 1920 px (Full HD).
  4. Press Download. With more than one image you get a single ZIP file.
  5. Press Start over to compress a different set.

A worked example

Say you have a 4.2 MB photo from your phone, 4032 × 3024 pixels, and a job application site allows uploads of 1 MB. At the default 75% quality the file drops to about 1.3 MB, still too big. Set Maximum size to 1920 px and it falls to roughly 380 KB. The picture still looks sharp on any screen, and you are well under the limit.

Tips for the best results

  • Reduce the pixels first. Shrinking the dimensions saves far more space than lowering quality, and a 1920 px wide photo is enough for screens, emails and most websites.
  • Use WebP for websites. It is usually 25 to 35% smaller than JPG at the same visible quality and works in every modern browser.
  • Keep JPG for documents and forms. Some older systems and official portals still refuse WebP.
  • Stay between 70 and 80% quality for photos you care about; go to 50 to 60% only for thumbnails and previews.

Common mistakes

  • Compressing the same photo again and again. Each round loses a little detail. Always start from the original file.
  • Saving photos as PNG. PNG files of photographs are often five times larger than JPG with no visible benefit.
  • Deleting the originals. Keep the full-quality versions if you might want to print or crop the photos later.
  • Choosing a tiny maximum size for printing. For prints, keep at least 2500 px on the long side.

Private by design

Your images are processed by your own browser. They are never uploaded, so the compressor is safe for personal photos, ID scans and unreleased work.

Need an exact size such as “under 100 KB”? Use Compress Image to KB. To change dimensions only, try Resize Image, and to switch formats use WebP to JPG or HEIC to JPG.

Frequently asked questions

Will people notice the lower quality?

At the default 75% quality, almost never on a phone or laptop screen. Differences only start to show below about 60%, mostly as soft edges or faint blocky patches in smooth areas like skies.

Why did my PNG get bigger or barely shrink?

PNG is a lossless format, so there is little to squeeze out of it without changing format. Choose JPG or WebP under "Save as" for photos. Keep PNG only for logos, screenshots or images that need a transparent background.

Can I compress many photos at once?

Yes. Select or drop as many images as you like (up to 50 MB each). They are compressed one after another and you download them together as a ZIP file.

Does compressing remove the photo's location and camera details?

Re-encoding the image drops most hidden metadata, including GPS location, in the output file. If privacy is the main goal, use Remove EXIF Data, which strips it without changing the picture.

Is there a limit to how small a photo can get?

The practical limit depends on its size in pixels. A 4000-pixel-wide photo will rarely go below about 300 KB without looking poor, so set "Maximum size" to 1920 or 1280 px as well. For an exact target, use Compress Image to KB.

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