Image Compressor
Make photos and images smaller for email, websites and upload limits, and compare the result before you download.
- Runs in your browser
- JPG, PNG, WebP
- Before-and-after view
Drop images here
or
JPG, PNG or WebP. Up to 30 images, 50 MB each.
Drag the divider (or use the arrow keys) to compare. Look closely at edges and fine detail.
What this tool does
Image Compressor saves your pictures again with stronger compression, and can also scale down very large photos. Phone photos of several megabytes often become a few hundred kilobytes while still looking sharp on screen.
Compression that makes files much smaller is "lossy": it removes fine detail that is hard to see. Use the before-and-after view to check the result. If a new file would not be smaller, the tool keeps your original instead.
Who it helps
- Students and job seekers meeting photo and document size limits on application forms.
- Website, blog and shop owners making pages load faster.
- Teachers and office staff emailing many photos without hitting attachment limits.
How to use it
- Add your images. Drop up to 30 on the box, choose them, or paste one with Ctrl+V.
- Check the result. Each image is compressed with the settings on the right. Use Compare to see the difference.
- Adjust if needed and download. Lower the quality for smaller files, then save each image or a ZIP of all of them.
Which settings should I use?
| If you want… | Try |
|---|---|
| A photo for email or chat | Quality 75%, largest side 1920 px |
| To meet an upload limit (for example 200 KB) | Quality 60–70%, largest side 1280 px |
| Images for a website | WebP, quality 75%, largest side 1920 px or the width of your page |
| The best quality for printing | Quality 90%, keep original size |
Supported formats and limits
| Item | Details |
|---|---|
| Input | JPG, PNG, WebP, GIF, BMP (and AVIF in browsers that support it), up to 50 MB each |
| Output | JPG or WebP; PNG for images with transparency when WebP isn’t available |
| Images at once | Up to 30 |
| Photo details (EXIF) | Removed, including camera and location; the photo is turned the right way up first |
| Animated GIFs | Only the first frame is kept |
| HEIC (iPhone) | Not supported by most browsers |
| Very large images | Above about 16 megapixels may fail on some iPhones; use “Largest side” to scale them down |
Frequently asked questions
How much smaller will my image get?
It depends on the image. Large phone photos often shrink by 60 to 90%. Images that are already compressed, or simple graphics, may shrink very little.
Will my image lose quality?
A little, but at the default 75% quality the difference is hard to see on screen. Use the Compare button to check, and raise the quality if you see blur.
Why was my original kept?
If compressing would make the file the same size or bigger, the tool keeps your original so you never download a worse file.
Can I compress a PNG and keep the transparent background?
Yes. In Auto mode, images with transparency are saved as WebP, which keeps transparency and is usually much smaller. If your browser can’t save WebP, the image stays a PNG.
Are my images uploaded?
No. Your browser compresses them on your own device. Nothing is sent to Freetol or stored anywhere.
What is WebP?
WebP is a modern image format made for the web. It is usually smaller than JPG at the same quality and works in all current browsers, but some older apps and upload forms only accept JPG or PNG.