Which Is Better for Image Optimization?
Quick Verdict
Glopix matches Compressor.io's compression quality while removing its key restrictions — no batch limits, no 4-format ceiling, and no paywalled Pro features for basic batch work. If you only ever compress single JPGs and PNGs, both are fine. For anything beyond that, Glopix is the stronger daily driver.
Every major differentiator compared head-to-head.
| Feature | Glopix.app | Compressor.io |
|---|---|---|
| Formats supported | 50+ | JPG, PNG, GIF, SVG |
| Batch processing (free) | ✓ Unlimited | Pro only |
| WebP output | ✓ | Pro only |
| AVIF output | ✓ | ✗ |
| HEIC support | ✓ | ✗ |
| Social media presets | ✓ 85+ presets | ✗ |
| Background removal | ✓ | ✗ |
| Image resize & crop | ✓ | ✗ |
| Lossless compression | ✓ | ✓ |
| Lossy compression quality | Excellent | Excellent |
| Signup required | No | No (basic) |
| Paid Pro plan | No | Yes (gated features) |
Compressor.io's batch functionality is a Pro feature. The free tier processes images individually. Glopix's batch processing is entirely free — upload as many images as you need, set your compression level once, and download all outputs as a ZIP. For anyone compressing product catalogs, blog image sets, or campaign assets, this difference is significant.
Compressor.io handles JPG, PNG, GIF, and SVG. That's the full list. Glopix supports over 50 formats including HEIC (iPhone photos), RAW camera files, AVIF, WebP, PSD, TIFF, DICOM, and more. If your workflow ever involves a file format outside those four, Compressor.io simply can't help.
WebP delivers 25–35% smaller files than JPEG at equivalent visual quality. AVIF goes further — often 50% smaller. Compressor.io's WebP output is a Pro feature. AVIF is unavailable entirely. Glopix includes both formats in the free tier, which matters if you're optimizing images for Google Core Web Vitals or overall page load performance.
Compressor.io's lossy compression is genuinely good — its JPG optimization in particular is widely trusted. Glopix matches this quality using the same category of compression algorithms. If you're compressing a critical JPG, both tools will give you a sharp, small result. The gap between them on pure compression quality is negligible; the gap in everything else is significant.
Switch to a tool that doesn't gate the basics
Free batch processing, 50+ formats, and no Pro plan required. Try Glopix now.
compress Compress Images FreeYes. Glopix offers comparable compression quality with no file size limits on its free tier, supports 50+ formats, and includes batch processing, social media presets, background removal, and more — all free with no signup required.
Compressor.io's free tier limits uploads to a maximum file size per image and restricts batch processing to Pro users. Glopix's free tier is more generous and does not require a paid plan for batch uploads.
No. Compressor.io supports JPG, PNG, GIF, and SVG only. For HEIC, RAW, AVIF, or other formats, you need a tool like Glopix which supports 50+ formats.
Both deliver excellent lossy and lossless compression. Compressor.io's lossy compression is well-regarded for JPG and PNG. Glopix matches this quality and additionally supports modern formats like AVIF and WebP which provide better compression ratios than JPG for equivalent quality.