TinyPNG is one of the most popular image compressors on the web. Their compression quality is excellent — built on a proven smart lossy algorithm. UtilsGo's image compressor uses modern browser-native APIs (WebP/AVIF encoders) to deliver comparable results without ever uploading your photos.
| Feature | UtilsGo | TinyPNG | Winner |
|---|---|---|---|
| Files leave your device | No — local compression | Yes — uploaded to servers | |
| Free daily limit | Unlimited | 20 images per session | |
| Max file size on free | Limited by device RAM | 5 MB per file | |
| WebP output | Yes | Yes | |
| AVIF output | Yes (browser support dependent) | Not currently | |
| Compression quality | Very good | Best in class (smart lossy) | |
| API for developers | Not offered | Available (paid) | |
| Price | Free | $39/year for Pro |
TinyPNG's compression algorithm is the gold standard for lossy PNG/JPEG and they offer a developer API. For automated production pipelines or maximum compression ratio on a single file, TinyPNG still leads.
For everyday image compression where privacy and unlimited use matter, UtilsGo is the smarter pick. For a CDN-scale automated pipeline or absolute best compression ratio, TinyPNG's API is worth considering.
Reference: TinyPNG official site — pricing as of June 2026. (Free up to 20 images, Pro $39/year)