🔐 True Privacy
Unlike other tools, your images never leave your device. All compression happens in your browser using client-side JavaScript. No servers. No uploads. No data collection.
Drag & drop images here
or click to select (JPG, PNG, GIF — max 10MB each)
Why Choose CompressIt?
⚡ Lightning Fast
No waiting for uploads or downloads. Compression starts instantly and completes in seconds, even for large images. Your internet speed doesn't matter.
🖼️ Modern Formats
Convert to WebP for even smaller file sizes. WebP offers 25-35% better compression than JPEG with the same quality. Perfect for websites.
📦 Batch Processing
Compress multiple images at once. Download them individually or as a single ZIP file. Save hours of manual work.
How We Compare
| Feature | CompressIt | TinyPNG | Others |
|---|---|---|---|
| Files stay on your device | ✅ Yes | ❌ Uploaded to servers | ❌ Uploaded |
| WebP output | ✅ Yes | ✅ Yes | ❌ Some |
| Registration required | ✅ None | ⚠️ For API | ⚠️ Often |
| Batch download (ZIP) | ✅ Free | 💰 Paid | 💰 Paid |
| Works offline | ✅ Yes | ❌ No | ❌ No |
Perfect For
Website Owners
Speed up your site with optimized images
Bloggers
Compress photos before uploading to WordPress
Developers
Optimize assets for web and mobile apps
Email Marketers
Reduce image size for faster email loading
Frequently Asked Questions
How does CompressIt compress images without uploading?
CompressIt uses modern browser APIs to process images entirely on your device. The compression algorithm runs in JavaScript within your browser. Your files are never sent to any server.
What's the difference between JPEG and WebP?
WebP is a modern image format developed by Google. It provides 25-35% smaller file sizes compared to JPEG at equivalent quality. All modern browsers support WebP.
Is there a file size limit?
Each image can be up to 10MB. Since processing happens locally, there's no server-side limit. You can compress as many images as you want.
Will I lose image quality?
You control the quality with the slider. At 80% quality, most images look identical to the original while being 50-70% smaller. For lossless compression, set quality to 100%.
Does this work on mobile?
Yes! CompressIt works on any device with a modern browser — phones, tablets, and computers. No app installation required.