Compress Images Online
Reduce the file size of your photos without uploading them anywhere. Choose an image, adjust the quality, and download a smaller version. The tool re-encodes the image in your browser using the quality you pick, so you can balance size against appearance and see the savings before you download.
How compression works
Photos are compressed by lowering the quality setting slightly, which removes detail the eye barely notices while cutting the file size significantly. A small reduction in quality often shrinks a photo by half or more, which is ideal for websites, email and faster uploads.
When to compress
- Websites — smaller images load faster and improve Core Web Vitals.
- Email and forms — fit attachments under size limits.
- Storage — keep more photos in less space.
Private and free
Your images are processed on your device and never uploaded. The compressed file is saved as a JPEG, which is best for photographs. There are no watermarks and no sign up.