Compressor.io is a well-known online compressor supporting JPEG, PNG, GIF, SVG, and WebP, with lossy and lossless modes. It uploads your image to its servers to compress it. Compress Image does the job in your browser instead, prioritizing privacy and batch speed.
Feature comparison
| Feature | Compress Image | Compressor.io |
|---|---|---|
| Processing | ✅ Browser-local | ☁️ Server-side upload |
| Privacy | ✅ No upload | ⚠️ Uploaded to servers |
| Lossy & lossless | ✅ Quality slider | ✅ Lossy/lossless toggle |
| Formats | JPEG, PNG, WebP, GIF | JPEG, PNG, GIF, SVG, WebP |
| SVG support | ❌ No | ✅ Yes |
| Batch processing | ✅ Many at once + ZIP | ⚠️ Limited on free tier |
| Format conversion | ✅ Yes | ⚠️ Limited |
| Pricing | Free tier + $29 lifetime | Free + paid (subscription) |
Where Compressor.io wins
- SVG support: it can optimize vector SVG files, which browser-canvas tools can't.
- Server-side engine: heavy lifting happens on their infrastructure.
- Simple lossy/lossless toggle for quick decisions.
Where Compress Image wins
- Privacy: images are never uploaded — they're compressed on your device.
- Batch + ZIP: compress many files at once and download them together.
- Format conversion between JPEG, PNG, and WebP, plus one-time pricing instead of a subscription.
Verdict: Choose Compressor.io if you need SVG optimization or prefer a server tool. Choose Compress Image for private, batch-friendly compression with a quality slider and lifetime pricing.
🔧 Try Compress Image — free, private, no upload
Drop your files and get smaller versions in seconds. Quality slider, format switching, and batch processing — all in your browser.
Open Compress Image →Frequently asked questions
Does Compressor.io upload my files?
Yes — it compresses on its servers, so images are uploaded. Compress Image works locally in your browser without uploading.
Can Compress Image optimize SVG files?
No. SVG optimization is a strength of Compressor.io. Compress Image handles JPEG, PNG, WebP, and GIF.
Which is better for compressing many images?
Compress Image — it batch-processes multiple files at once and offers a one-click ZIP download.
Is the pricing the same?
Both have free tiers. Compress Image Pro is a one-time $29 license; Compressor.io's paid plan is a subscription.