How to compress images
- Select one or more images.
- Set the quality (65–80% looks the same to most people) and, if you like, a maximum size.
- Click Compress and compare the before and after sizes.
- Download images one by one or all together as a ZIP.
Why compress images?
A single phone photo is often 3 to 8 MB. That is too big for many upload forms, slow on websites (page speed affects Google rankings) and quick to fill email attachment limits. Compressed, the same photo is usually 200 KB to 1 MB and looks the same on screen.
Settings that matter
| Setting | Suggestion |
|---|---|
| Quality | 70–80% for photos you’ll share; 60% for thumbnails; 85%+ for printing |
| Output format | Automatic: JPG stays JPG, PNG becomes WebP (keeps transparency) |
| Resize | 1920 px for websites and social media; 2560 px if people may zoom in |
Resizing saves the most. A 4000 × 3000 photo has more than three times as many pixels as a 1920 × 1440 one, and few screens show more than that anyway.
Honest notes
- Compression is lossy: some detail is discarded. Keep your originals.
- If a file is already well optimised, the tool keeps the original instead of giving you a bigger “compressed” file.
- Compressed copies lose the hidden EXIF data (camera, date, GPS location). That’s good for privacy when posting online, but keep the originals if you need the dates for your photo library.
Batch and private
Select dozens of photos at once and download everything as a ZIP. Images are processed by your browser’s own image engine, so they are never uploaded.
Need a specific size instead? Try Resize Image. Converting iPhone photos? Use HEIC to JPG.
Frequently asked questions
How much smaller will my images be?
Phone photos usually shrink by 60 to 90 percent at the recommended settings, especially if you also limit the size to 1920 or 2560 pixels. Images that are already compressed shrink less; the tool keeps your original if compressing would make it bigger.
What happens to PNG files?
With Automatic format, PNGs are saved as WebP, which keeps transparency and is far smaller. Choose PNG if you must keep the PNG format, but expect smaller savings.
Does compressing remove location data?
Yes. Compressed copies do not include the hidden EXIF data, such as GPS location and camera details, that phones attach to photos.
Are my photos uploaded?
No. The compression is done by your browser on your own device.