Example: the same photo at the same quality
A public-domain 11-megapixel harbour photo (4.97 MB). At its defaults PicoDiet keeps more quality (score 80, 666 KB); with the Quality slider at TinyPNG's level its file is smaller. From our benchmark of 13 images.
PicoDiet and TinyPNG side by side
| TinyPNG (free web) | PicoDiet | |
|---|---|---|
| Quality score | ✗ not shown | ✓ shown for every image |
| Change map | ✗ no | ✓ marks what changed most |
| Gradients | ! grain up close | ✓ smooth |
| Animated GIF | ✗ rejected | ✓ stays animated |
| HEIC | ✗ rejected | ✓ becomes a JPEG |
| iPhone colours | ! made sRGB | ✓ kept |
| Fit a file size | ✗ no | ✓ e.g. 200 KB |
| Photos, same quality | bigger | 25% smaller |
| PNG, same quality | bigger | 12% smaller |
| Images at once | up to 20 | up to 30 |
| Price | free, paid plans | free, no sign-up |
Where PicoDiet wins
- Smaller files at the same quality: photos 25% and PNGs 12% smaller than TinyPNG's.
- You see the quality: a score for every image, and the compare view opens on the spot that changed most.
- GIF and HEIC too: animated GIFs and iPhone HEIC photos work, and wide iPhone colours are kept.
How to switch from TinyPNG
- Drop the same images above. Up to 30 at once, each up to 25 megapixels.
- Keep the default of 80 for images that should look the same as the original, or move the slider to about 70 for files closer to TinyPNG's sizes.
- Open an image to check the marked areas, then download it, or all of them as a ZIP.
What happens to your images
Uploaded over HTTPS to the nearest of our servers, processed automatically, and deleted within 3 minutes after you finish. Never shared, sold or used for training. No account needed. Privacy policy
Questions
Is PicoDiet free like TinyPNG?
Yes, free with no account and no watermark. There is no paid plan.
Are the files smaller than TinyPNG's?
At default settings, usually not: PicoDiet keeps more quality. At the same quality score its photos were 25% smaller and its PNGs 12% smaller in our test. The benchmark has every number.
Does PicoDiet keep transparency?
Yes, including soft edges and shadows, as TinyPNG does.
Are my images private?
Yes. Images are uploaded over an encrypted connection to the nearest of our servers, optimized, and deleted within 3 minutes after you finish. They are never shared, sold or used for training, and there is no account to sign up for. Details are in the privacy policy.