🗜️ Image Compressor
Reduce image file size without visible quality loss — right in your browser. No upload, no signup.
Free Online Image Compressor — Reduce Image Size Without Losing Quality
Need to compress an image online without ruining how it looks? Our free image compressor shrinks your photos to a fraction of their original size right in your browser. No uploads, no watermarks, no signup — your images never leave your device.
Why Compress Images?
Large image files slow down websites, eat phone storage, and get rejected by email and upload forms. A good online image compressor solves all three: it reduces file size by 50–90% while keeping the photo looking sharp. Bloggers use it to speed up pages (a direct Google ranking factor), sellers use it for faster marketplace listings, and everyone uses it to reduce image size before sharing.
JPEG vs PNG vs WebP — Which Format Should You Choose?
- JPEG — best for photos; small files, universal support.
- WebP — Google's modern format; ~30% smaller than JPEG at the same quality. Ideal for websites.
- PNG — best for graphics, logos, and anything needing transparency; larger files.
Our image compressor free tool lets you convert between all three while you compress.
How to Compress an Image Online
- Choose your image (JPG, PNG, WebP, GIF, and more).
- Set the quality slider — 80% is the sweet spot for web use.
- Optionally set a max width to resize large photos.
- Click compress and download the smaller file.
Frequently Asked Questions
Does compressing an image reduce quality?
Slightly — but at 75–85% quality the difference is invisible to the human eye, while the file can be 70% smaller. That is the whole point of smart compression.
What is a good image file size for a website?
Aim for under 200 KB per image, ideally under 100 KB for large photos. Our compressor shows you the before/after sizes so you can dial it in.
Are my images uploaded to a server?
No. Compression happens entirely in your browser using your device's own processor. Nothing is uploaded, stored, or seen by anyone.
Can I compress PNG images with transparency?
Yes — choose PNG output to keep transparency. For the smallest files, WebP also supports transparency at much smaller sizes.
How to use
- Choose an image from your device (it never leaves your browser).
- Set quality, output format and optional max width.
- Click "Compress Image" and download the smaller file.