JPG, PNG or WEBP? Which Image Format to Choose

When working with digital images, choosing the right format can make the difference between a file that's too heavy and slows down your website and a perfectly optimized image. Each format has specific characteristics that make it ideal for certain situations. In this guide we analyze the three most used formats: JPG, PNG and WEBP.

JPG (JPEG) — The universal format for photos

JPG, also known as JPEG, is the world's most widely used image format. It was created in 1992 by the Joint Photographic Experts Group and became the standard for digital photography. Its main strength is controllable lossy compression: you can choose how much to compress the image, balancing quality and file size.

PNG — Lossless quality and transparency

PNG (Portable Network Graphics) uses lossless compression, meaning image quality is never degraded. Its most important feature is transparency support (alpha channel), making it indispensable for logos, icons, graphics with transparent backgrounds and any image that needs to be overlaid on other content.

WEBP — The modern web format

Developed by Google in 2010, WEBP is designed specifically for the web. It offers both lossy and lossless compression, supports transparency and produces files on average 25-35% smaller than JPG at the same visual quality. It's the recommended format for modern websites that want to optimize loading times.

Comparison table

How to convert between formats

If you have an image in the wrong format for your needs, you can easily convert it with the CandyFile image converter. It supports all conversions between JPG, PNG and WEBP, plus additional formats like HEIC (iPhone photos), AVIF, GIF, BMP and TIFF. Conversion is instant, free and maintains the highest possible quality.