Compress Images Online
Reduce image file size without losing quality. Drop your JPG, PNG or WebP — adjust quality — download. Your image never leaves your browser.
Drop your image here
or click to pick a file. JPG, PNG, WebP, GIF. Up to 50MB.
How to compress an image (it takes about 10 seconds)
We're not going to insult you with a 12-step tutorial. Here's the whole thing.
Drop your image
Drag and drop your JPG, PNG, WebP or GIF onto the tool above. Or click to browse. Up to 50MB.
Set the quality
Move the quality slider. 80% is a solid starting point for most images. Lower for tiny files, higher if you're precious about sharpness.
Hit Compress
Click the button. The whole process happens in your browser. No upload. Takes about a second.
Download your file
See the before/after sizes. Happy with it? Hit download. Not happy? Adjust the slider and try again.
What actually happens when you compress an image?
Image compression reduces file size by discarding information your eye probably won't notice anyway. For JPG files, this mostly means reducing color detail in areas where colors are similar. A blue sky with subtle gradients can have a lot of redundant information — compression removes the redundancy and your eye still sees a blue sky.
PNG works differently. It uses lossless compression, meaning no image data is thrown away. PNG files can still be reduced in size by optimizing how the data is encoded internally, but you won't see the same dramatic file size reductions you get with JPG. If file size matters a lot, converting your PNG to WebP first is usually a smarter move.
WebP is Google's format and it's genuinely good. Same visual quality as JPG at roughly 25-35% smaller file sizes. All modern browsers support it. If you're building a website, you probably want WebP. If you need JPG for an email or some specific system, stick with JPG.
What quality setting should you actually use?
The quality slider goes from 10 to 100. At 100, you're doing almost nothing. At 10, your image will look like it went through a cheese grater. The useful range for most people is 70-90.
For website images, 80% is a reliable choice. You'll cut file size by 50-70% compared to an uncompressed photo and the visual difference is hard to spot unless you zoom in on text or fine detail. For thumbnails and social media previews, you can even push to 70% without issue.
Print? Don't use this tool for print. Or if you do, use 95%+. Printed images require much higher quality than anything displayed on screen.
Why compress images at all?
The main reason is page speed. Large images are the number one cause of slow websites. Google cares about this, users care about this, and your hosting bill cares about this. A 4MB product photo could be 400KB with the right compression. That's 10x less bandwidth, 10x faster load time.
But it's not just websites. Email attachments, uploading to forms, sharing in Slack or Teams — most platforms have file size limits and smaller images just work better everywhere.