Image Formats: A Comprehensive Guide to JPG, PNG and SVG

Choosing the Right Image Format:JPG vs PNG vs SVG | Jpress

When you are working with images for your website, app, or even a simple blog post, picking the right image format can make a big difference. The right choice helps your site load faster, keeps your visuals looking sharp, and ensures everything works smoothly across different devices. In this blog post, we will dive into when you should use these image format.

What’s the Difference Between Raster and Vector Images?

First, there are 2 types of images: Raster Image and Vector Image.

• Raster images like PNG and JPG are made up of tiny dots (pixels). They’re great for photos and detailed visuals but can lose quality if you stretch them too much.

• Vector images like SVG are built with shapes and paths based on math formulas. They can scale up or down without ever getting blurry.

What is JPG/JPEG image format?

JPG (or JPEG), known as Joint Photographic Experts Group, is the king of photographs and colorful web images. It uses lossy compression, meaning it slightly reduces quality to create much smaller file sizes, which is perfect when speed matters. It also taking less storage space for hard drives. JPGs don’t support transparency, and editing them repeatedly can cause a gradual loss of quality.

Use JPG when:

• You’re working with real-world photos, like people, nature, or food.
• You want lightweight images for faster web page loading.
• You’re sending images through email and want smaller attachments.

💡 There is no difference between JPG and JPEG

What is PNG image format?

If you need crystal-clear images or transparency, PNG is your best friend. Unlike JPG, PNG uses lossless compression, which means no quality is lost when you save or edit it multiple times.

Use PNG when:

• You’re designing logos, icons, or graphics that need a transparent background.
• You’re capturing screenshots or making user interface (UI) elements.
• You need images that will be edited frequently without losing crispness.

What is SVG image format?

SVG (Scalable Vector Graphics) is the go-to for graphics that need to stay sharp no matter what screen size they’re on. Since SVGs are vector-based, they look just as good on a tiny phone screen as they do on a giant monitor.

Use SVG when:

• You’re making logos, icons, or illustrations that need to be resized often.
• You want to animate graphics using CSS or JavaScript (SVG makes this easy!).
• You want your images to be readable by search engines, which can boost your SEO.

Conclusion

When choosing between JPG vs PNG vs SVG for your web or app project, you must balance image quality, file size, browser support, and the nature of the graphic.

• JPEG (JPG): Best for photographs and realistic imagery where lossy compression is acceptable to minimize file size.
• PNG: Ideal for detailed graphics, illustrations, screenshots, or any image requiring lossless quality or partial/full transparency.
• SVG: The go-to for logos, icons, vector illustrations, charts, and any graphic that must scale crisply at any resolution or be manipulated via CSS/JS.

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