Convert Images Online for Free

Why would you want to convert image formats?

Different platforms and devices require different image formats, and this can cause real headaches. For example, iPhones save photos as HEIC files by default. HEIC is a great format — it keeps high quality at a small file size. But the problem is that many websites, email services, social media platforms, and older devices simply don't support HEIC.

What image formats does ConvertIMG support?

ConvertIMG supports all the popular image formats you'll encounter. Here's what each format is best at, and when you'd want to convert to or from it: HEIC / HEIF: The modern format used by iPhones and iPads since iOS 11. HEIC offers impressive compression — roughly 50% smaller than JPEG at comparable quality. The downside is limited compatibility outside the Apple ecosystem.

Is it safe to convert images online?

Yes — as long as you use a reputable service, converting images online is completely safe. ConvertIMG takes your privacy seriously. Your uploaded images are processed in real time on our secure servers and are never stored or saved to disk. The moment your conversion is complete, the files are automatically deleted from memory. There's nothing lingering on our servers.

How does image format conversion work?

When you convert an image, the tool reads the pixel data from your original file and re-encodes it in the new format. Each format has its own way of storing image data, which is why the same photo can be 8 MB as a PNG but only 1 MB as a JPEG. The conversion process essentially "translates" your image from one encoding to another.

What's the difference between lossy and lossless conversion?

Lossy and lossless refer to whether any image data is discarded during the process, and the distinction matters more than most people expect. Lossless conversion preserves every single pixel of your original image. Converting between lossless formats (like TIFF to PNG) means zero quality loss — the output is pixel-for-pixel identical to the input.