Free Image Compressor
Shrink JPG, PNG and WebP images by quality or to an exact size limit, in bulk. Everything runs in your browser, so your photos are never uploaded.
🔒 Images are compressed on your device. Nothing is uploaded, stored or seen by us.
Two ways to compress
Compress by quality when you want the best-looking result and don’t mind the exact size. Around 70–85% is usually indistinguishable from the original on a phone screen while cutting the file substantially.
Compress to a target size when a form or marketplace sets a limit, such as "under 500 KB". The tool searches for the highest quality that fits. If an image still won’t fit at low quality, it reduces the dimensions step by step and tells you when the target could not be reached.
Why phone photos are so large
A modern phone photo is often 4000 pixels wide or more — far more detail than a product listing or a website shows. Most of the file size is pixels nobody sees. Ticking "limit the longest side" to 2000 px removes that excess before compressing, which usually shrinks the file far more than lowering the quality would.
How to compress an image to a target size →JPG or WebP?
WebP makes smaller files than JPG at the same visual quality and is ideal for websites. JPG is accepted almost everywhere, including marketplace upload forms, so choose JPG when you are not sure where the image is going.
Convert between JPG, PNG and WebP →Image Compressor FAQ
Is this image compressor free?
Yes, with no signup and no watermark. Up to 30 images can be compressed at once.
Are my images uploaded to a server?
No. Compression happens inside your browser and the images never leave your device.
How do I compress an image to under 500 KB or 100 KB?
Choose "Target file size", enter the limit in KB, and run it. The tool finds the highest quality that fits, and reduces dimensions only if quality alone is not enough.
Does compressing reduce quality?
Lossy formats such as JPG and WebP discard detail the eye barely notices. At 70–85% quality the difference is usually invisible on screen. Very low targets will show artefacts, so use the highest target your limit allows.
Why is the compressed file bigger than the original?
The original was already heavily compressed. Re-encoding cannot recover a smaller file in that case, and the tool tells you to keep the original.
Can it compress iPhone HEIC photos?
Most browsers cannot read HEIC. Set the iPhone camera to "Most Compatible" or export the photo as JPG first, then compress it here.