TinyPNG is one of the most popular image compressors online. FileCurve is a privacy-first alternative that processes images in your browser. Here's an honest comparison of both tools.
Head-to-Head Comparison
| Feature | FileCurve | TinyPNG |
|---|---|---|
| Free images/month | Unlimited | 20 |
| Max file size (free) | 50MB | 5MB |
| Files uploaded to server | Never | Always |
| Formats supported | JPG, PNG, WebP, GIF, AVIF | PNG, JPG, WebP |
| Other tools | 45+ (PDF, video, audio) | Compression only |
| API available | Coming soon | Yes |
| Works offline | Yes (PWA) | No |
Compression Quality Comparison
TinyPNG uses a proprietary quantization algorithm that produces excellent results for PNG files — often reducing size by 70-80% losslessly. FileCurve uses browser-based compression with configurable quality settings.
In our testing: For PNG files, TinyPNG edges ahead in compression ratio. For JPEG, the difference is negligible at 80% quality setting. For WebP, results are comparable.
When to Use FileCurve
- ✓ You need to compress more than 20 images per month
- ✓ You have files larger than 5MB
- ✓ Privacy is important (photos, ID documents, etc.)
- ✓ You also need PDF, video, or audio tools
When to Use TinyPNG
- ✓ You need the absolute best PNG compression ratio
- ✓ You need API access for automated compression
- ✓ You only compress a few images per month