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TinySquish vs TinyPNG vs Squoosh
| TinySquish | TinyPNG (free web) | Squoosh | |
|---|---|---|---|
| Where images are processed | In your browser | On TinyPNG's servers; files are kept for up to 48 hours | In your browser |
| Works offline | Yes, after the first visit | No | Yes, after the first visit |
| Images per batch | 20 | 20, max 5 MB each | One at a time |
| Output formats | JPEG, PNG, WebP | JPEG, PNG, WebP, AVIF, JPEG XL, APNG (3 free conversions) | Many, including AVIF and JPEG XL |
| Target file size | Yes (50 KB – 2 MB) | — | — |
| Source code | Open source (MIT) | Closed source | Open source (Apache-2.0) |
Sources: tinypng.com (upload limits, 48-hour retention, formats) and the Squoosh repository, checked October 2026. “—” means we did not find the feature.
Which one should you use?
- TinySquish when privacy matters, you work offline, or you need several images under a fixed size.
- TinyPNG when you need AVIF, JPEG XL or animated PNG output and don't mind uploading files.
- Squoosh when you want to fine-tune advanced codecs on a single image.
Frequently asked questions
Is TinySquish as good as TinyPNG?
Both reduce PNGs with palette quantization and JPEGs by re-encoding. The main differences are where the work happens and the formats: TinySquish runs on your device and works offline, while TinyPNG processes files on its servers and also offers AVIF, JPEG XL and animated PNG.
Does TinyPNG upload my images?
Yes. TinyPNG compresses files on its servers and states that it keeps them for up to 48 hours before deleting them. TinySquish never uploads your images.
What about Squoosh?
Squoosh also runs in the browser and offers many advanced codecs, but its web app works on one image at a time. TinySquish handles batches of up to 20 images, folders, ZIP downloads and target file sizes.