Image Compressor
Reduce image file size with a quality slider.
100% private — runs in your browser, nothing is uploaded.
Click to upload, drag & drop, or paste
JPG, PNG or WebP — compressed to JPG or WebP
Ctrl+Vto paste from clipboard
How to use the Image Compressor
- 1Upload an image
Drag and drop or click to select a JPG, PNG or WebP file.
- 2Choose a quality
Drag the slider; the preview and compressed size update live.
- 3Pick a format
Select JPG for compatibility or WebP for the smallest file.
- 4Download
Save the compressed image once you are happy with the size and look.
Examples
| Input | Output |
|---|---|
2.4 MB JPG at 70% | ≈ 0.4 MB (about 83% smaller) |
Same image as WebP | Usually smaller still |
Free online image compressor
This image compressor reduces the file size of your photos with a simple quality slider, showing you the savings in real time. Smaller images mean faster websites, quicker uploads and smaller email attachments.
JPG vs WebP
Both are lossy formats that shrink photos well. WebP typically beats JPG by 25–35% at the same visual quality and is supported everywhere modern. JPG remains the safest choice for very old software or devices.
How to get the best result
- Start at 75% quality and lower it until you can just notice a difference, then step back up.
- Use WebP for the smallest files when compatibility is not a concern.
- Resize huge images first — fewer pixels compress even smaller.
Everything runs in your browser using the HTML canvas, so your images are never uploaded and the tool works offline.
Frequently Asked Questions
How does image compression work?
The tool re-encodes your image as JPG or WebP at a quality level you choose. Lower quality discards fine detail the eye barely notices, which dramatically reduces the file size.
What quality setting should I use?
Around 70–80% is a good balance for photos — a big size cut with little visible loss. Drop lower for thumbnails, or raise it when detail matters. Watch the live preview and size readout.
Is WebP better than JPG?
WebP usually produces smaller files than JPG at the same quality and is supported by all modern browsers. Choose JPG only if you need maximum compatibility with older software.
Does it compress PNG files?
You can upload a PNG, but it is compressed by converting to JPG or WebP, since those formats are far smaller for photos. For images that need transparency, use WebP output.
Are my images uploaded anywhere?
No. Compression happens entirely in your browser, so your images stay on your device. It is private and works offline.
Will compressing reduce the dimensions?
No — compression keeps the same width and height, it just lowers the file size. To change dimensions too, resize the image first with the image resizer.