Best Free Image Converters in 2026
Most image converters are functionally identical for simple JPG↔PNG conversions. The real differences are privacy (does it run in your browser, or upload to a server?), batch support, and whether they nag you for an account.
At-a-glance comparison
| Tool | Pros | Cons | Best for |
|---|---|---|---|
| MyPDFKitty | Pure client-side conversion (image never leaves your device); no signup; supports JPG↔PNG and JPG/PNG↔PDF. | No batch mode yet for image-only conversions. | Privacy-conscious one-off conversions. |
| iLovePDF / iLoveIMG | Wide tool catalog including image batches. | Ads on free tier; uploads images to a server. | Bulk image jobs where you don't mind the upload. |
| Smallpdf | Clean UX. | Free tier limits per day. | Occasional one-offs. |
Pricing and feature data on competing tools changes often. Verify on each provider's site before purchasing.
Our take
For JPG↔PNG specifically, MyPDFKitty's tools run in your browser — your images stay on your device. That's a real privacy win over server-uploads.
Related MyPDFKitty tools
FAQ
What's the difference between JPG and PNG?+
JPG is lossy and smaller, great for photos. PNG is lossless and supports transparency, great for graphics and screenshots.
Is browser-side conversion as good as server-side?+
For JPG/PNG the browser uses the same encoders. Quality is identical to server-side; speed is comparable for normal-sized images.