ImageOptimizer vs TinyPNG
ImageOptimizer
imageoptimizer.org
TinyPNG
tinypng.comSide by side
| Figure | ImageOptimizer | TinyPNG |
|---|---|---|
| Price from | $4.99/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| API | Yes | Yes |
| Plans published | 4 | 9 |
| Spec score · Image Compression Software | 8.5 (#14) | 8.9 (#4) |
| API access | Yes | Yes |
| Batch processing | Batch size recommendations are based on device capacity, and users can override warnings. | Yes |
| Free plan | Yes | Yes |
| Metadata controls | Yes | The Developer API offers an option to retain certain metadata. |
| Image resizing | Yes | Yes |
| Supported formats | JPEG,PNG,WebP,GIF,AVIF,TIFF | JPEG XL (JXL),AVIF,WebP,JPG,PNG,APNG |
Plans
ImageOptimizer
- FreeFree
- Starter$4.99 a month
- Pro$14.99 a month
- Agency$49.99 a month
TinyPNG
- Web FreeFree
- Web ProPrice not published
- Web UltraPrice not published
- Developer API: first 500 compressionsPrice not published
- Developer API: next 9,500 compressionsPrice not published
- Developer API: next 10,000 compressionsPrice not published
- Developer API FreeFree
- Developer API Volume PricingFree
- Developer API Pay Per Compression$0.01 a month
In their own words
ImageOptimizer
ImageOptimizer has no write-up on Specifiction yet; its figures are above.
TinyPNG
TinyPNG is an image compression service offering lossy compression, batch processing, resizing, metadata controls and API access. It supports JPEG XL, AVIF, WebP, JPG, PNG and APNG files. Free web use allows up to 20 image compressions per session, with each image limited to 5 MB, and up to three conversions per session. The API includes 500 free compressions each month; unused free compressions reset at the start of each calendar month and do not roll over. Above that allowance, charges apply to successful compressions, with no subscription fee or minimum charge. Uploaded images are accessible only to the uploader and retained for a maximum of 48 hours. TinyPNG removes unnecessary metadata, while the API can preserve selected copyright, location and creation-date metadata. Official plugins are available for WordPress and Figma, alongside a beta Zapier integration. Web Pro offers unlimited compressions and a 75 MB per-image limit, while Web Ultra allows 150 MB images and unlimited conversions. The maker is headquartered in Hoevelaken, Netherlands.