Compress image files
Make JPG, PNG and WebP images smaller right in your browser. Choose a quality level, optionally resize large photos, and download lighter copies without uploading anything.
Runs on your device — nothing is uploaded
Image compressor
Lower means smaller files. 75-85 is a good everyday range.
JPG is best for photos. WebP can be smaller. PNG keeps sharp graphics.
Use 0 to keep original dimensions. Try 2000 for large phone photos.
Compressed files get a clean suffix before download.
Private by design. Images are processed in this browser tab and never sent anywhere.
Compressed images
How it works
Three steps
Add your images
Drag photos onto the box above or click to choose them from your device.
Choose compression
Pick a quality level, output format and optional maximum size for large images.
Download smaller files
Your browser creates compressed copies and gives them back as downloads.
About image compression
Why compress images?
Photos from modern phones and cameras can be several megabytes each. That is fine for archiving, but it can be annoying when a website has an upload limit, an email attachment is too large, or a page takes too long to load. Compressing an image makes a smaller copy that is easier to share and upload.
What happens to image quality?
JPG and WebP compression reduce file size by removing details that are hard to notice. At high quality settings, the image usually looks the same on screen while taking much less space. If you push the quality too low, edges and gradients can start to look rough, so it is worth testing a few settings.
Which output format should I choose?
Use JPG for regular photos and the widest compatibility. Use WebP when you want very small files for websites and modern apps. Use PNG for screenshots, logos or graphics with sharp edges, though PNG often will not shrink photos as much as JPG or WebP.
Why nothing is uploaded
Most online image compressors upload your photo to a server, process it there and send the result back. This tool works differently: the image is opened by your browser, compressed using your device's own processing power, and handed back as a download. LocalFiles does not receive the image you choose.
Questions
Frequently asked
How does image compression work?
Will compressing an image reduce quality?
Can I compress several images at once?
Are my images uploaded anywhere?
Related
Other tools you might need
- HEIC to JPG Convert iPhone photos before compressing or sharing them. Open tool →Live
- Resize image Set exact dimensions for uploads, avatars or print. PlannedSoon
- WebP to JPG Convert web images into a format every app can open. PlannedSoon