Resize before you compress
Scaling a huge photo down to the size it is displayed at saves the most.
Image Compressor
Make images smaller so websites load faster and emails go through. Choose a quality level, optionally cap the width, and see exactly how many kilobytes you saved on every file.
- 100% free
- No sign-up
- Files never leave your device
Drop images here or click to chooseJPG, PNG, WebP, GIF or BMP · you can also paste an image
PNG files compress best when converted to WebP or JPG. Very small or already optimised images may not shrink further.
How to use
How to use the Image Compressor
- Add one or more images.
- Choose the output format. WebP usually gives the smallest files.
- Set the quality; 70 to 80 suits most web images.
- Optionally set a maximum width, such as 1600 px for websites.
- Download the compressed images and compare the savings.
Private by design. Your images are processed by your own browser. They are never uploaded to a server, so even private or confidential photos stay on your device.
About this tool
How does image compression work?
Most of an image file's size comes from detail your eyes barely notice. Lossy compression, used by JPG and WebP, removes some of that detail. At sensible quality settings the result looks the same on screen but can be a fraction of the size.
Resizing is often the biggest win. A photo straight from a phone may be 4000 pixels wide, while a website rarely needs more than 1600 to 2000. Combining a sensible maximum width with quality around 75 to 80 typically cuts file size by 60% to 90%.
Good to know
Image size tips for websites
Use WebP where you can
WebP is supported by all modern browsers and is usually smaller than JPG.
Aim for under 200 KB
For most website images, under 200 KB keeps pages fast.
Keep your originals
Compression is one-way, so keep the original files for printing or editing.
FAQ
Image Compressor FAQs
Will compressing reduce quality?
Slightly, but at quality 70 to 85 the difference is usually not visible on screen.
Why did my PNG barely shrink?
PNG is lossless, so its size depends on its content. Converting a PNG photo to WebP or JPG gives much bigger savings.
Does this help SEO?
Yes. Smaller images improve page speed and Core Web Vitals, which are part of how search engines judge pages.
Are my images uploaded?
No. Compression happens in your browser, so your images stay on your device.
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