Free Image Compressor
Compress JPG, PNG, WebP images without losing quality. Reduce file size up to 90% — free, instant, no upload.
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JPG, PNG, WebP — up to 20 MB each
Frequently asked questions
Typically 40-90% depending on the original quality and format. Converting to WebP or AVIF gives the best compression — up to 90% smaller than the original PNG.
At quality 80%+ the difference is barely visible to the human eye. Below 60% you may notice artifacts. For web images, 75-85% is the sweet spot between size and quality.
AVIF gives the best compression (up to 50% smaller than JPEG), followed by WebP (25-35% smaller). For maximum compatibility, WebP is the safer choice for web use.
100% safe. All compression happens locally in your browser. Your images are never uploaded to any server and never leave your device.
Compress Image Online Free — Reduce File Size Without Losing Quality
Our free tool lets you compress images online without losing quality. Compressing images online is essential for faster websites, smaller email attachments, and quicker uploads. Our image compressor reduces file size by up to 90% while keeping your images looking sharp.
Why compress images online?
Large image files slow down websites, take up storage space, and are frustrating to share. When you compress images online, you get smaller files that load faster — Google actually ranks faster websites higher in search results. Compressing images online before uploading to your website can cut page load time significantly.
How much can you compress images online?
- JPEG photos — Typically 40–70% reduction at 80% quality with no visible difference
- PNG graphics — Convert to WebP and compress images online for up to 80% savings
- WebP images — Already efficient, but further quality reduction saves 20–40% more
- Convert to AVIF — The best way to compress images online, up to 90% smaller than original PNG
How to compress images online with our tool
To compress images online, simply upload your JPG, PNG or WebP files. Set the quality slider — 75% is the sweet spot for most web images. Choose to keep the original format or convert to WebP or AVIF for maximum compression. Click Compress and download your smaller files instantly. You can compress images online in bulk — upload as many as you need.
Is it safe to compress images online here?
Completely safe. When you compress images online with our tool, everything happens inside your browser. Your images are never uploaded to any server and never leave your device.
Best quality setting to compress images online
For web use, 75–85% quality is the ideal setting to compress images online. At this range, the file size reduction is significant but the quality difference is barely visible. For print or archival use, compress images online at 90%+ to preserve maximum detail.
Also try our free image converter, image resizer, and image cropper.