Image Compressor

How to compress an image

1. Choose up to 30 images, or drag them onto the box.
2. Adjust quality, output format and maximum size. Every image is re-compressed whenever you change a setting.
3. Compare the before and after sizes, then download each image or all of them at once.

Choosing the right settings

• Quality 70–80% is a good balance for photos; most people can't see the difference from the original.
• WebP is usually 25–35% smaller than JPG at similar quality and works in all modern browsers.
• Reducing dimensions saves the most space. A 4000-pixel phone photo resized to 1920 px is often under a quarter of the size.
• JPG has no transparency, so transparent areas are filled with white.

Limits

Each image can be up to 40 MB. Very large images (above roughly 50 megapixels) may fail on phones with limited memory. Animated GIFs and HEIC files aren't supported in most browsers. Compression runs in a background thread, so the page stays responsive while it works.

Common uses

• Meeting upload limits on job applications, government forms and email attachments.
• Speeding up websites by serving smaller images.
• Freeing up storage on your phone or cloud drive.

No. Images are decoded and re-encoded by your browser on your device. SomethingTools never receives them, and they are cleared from memory when you remove them or close the tab.

PNG is a lossless format, so re-saving it as PNG can't throw away detail. To make a PNG much smaller, choose WebP or JPG as the output format, or reduce the maximum size. Keep PNG for screenshots or graphics that need sharp edges or transparency.

The re-encoded image would have been larger than your original. In that case the download gives you the original file unchanged, so you never end up with a bigger image.

Yes. Re-encoding writes a fresh image with no camera metadata, which removes GPS location, camera model and similar details. Photos are rotated to their correct orientation first.

Only in browsers that can open HEIC, which currently means Safari. Elsewhere, set your iPhone camera to "Most Compatible" or export the photo as JPG first.