How to use the image compressor
- Drop one or more images.
- Choose JPG or WebP and set the quality. Around 70 to 80 is a good balance.
- Click Compress and download.
About this tool
Large images slow pages and exceed upload limits. Drop one or many images, pick JPG or WebP, set the quality, and download smaller files, with the before and after size shown for each. Compression happens in your browser, so your photos are never uploaded to a server.
JPG, WebP or PNG: which to choose
- JPG is best for photos. It is lossy, so a lower quality gives a smaller file.
- WebP is usually smaller than JPG at similar quality and supports transparency, and all current browsers can display it. Encoding to WebP depends on your browser, so if you get a PNG back, use JPG instead.
- PNG is lossless, which suits logos, screenshots and graphics with sharp edges. Its quality setting has no effect, so convert photos away from PNG to save space.
Quality settings that work
For web photos, 70 to 80 is a good balance and the difference is hard to see. Below about 60, blocky artefacts and colour banding appear in skies and gradients. Compare the result against the original before you use it, especially for product photos.
Getting a file under 100 KB or 200 KB
Quality alone may not get you there, because file size also depends on pixel dimensions. A 4000-pixel-wide photo is far bigger than needed for most uses. Set Max width to 1200 or 1600, choose JPG or WebP at 70 to 75, and compress. If the file is still too large, lower the width a bit more before you lower the quality further. Many government and exam portals ask for a specific size, so check the result in the file list before you upload.
What happens to your photo data
Compression runs entirely in your browser, so your images are not uploaded. Because each image is redrawn and saved again, camera metadata such as location, device and time is removed. That is good for privacy, but it also means any embedded colour profile is dropped, so colours can look slightly different on some screens.
Frequently asked questions
Are my images uploaded?
No. Files are processed in your browser and never leave your device.
Why did my PNG not get smaller?
PNG is lossless, so quality has no effect. Convert to JPG or WebP for much smaller files.
Does compression reduce quality?
JPG and WebP compression is lossy, but at 70 to 80% most images look the same to the eye.
How do I compress an image to under 100 KB?
Reduce the max width to about 1200 pixels, choose JPG or WebP, set quality to 70, and compress. Lower the width further if it is still too big.
Can I compress many images at once?
Yes. Drop several files, set the options once, and download the results one by one or all together.