JPG, PNG and WebP each solve a different problem, and picking the wrong one for a specific use case is one of the most common avoidable image mistakes — whether that's a stretched logo or a rejected upload.
Side-by-Side Comparison
- Transparency support: PNG and WebP both support transparency. JPG does not support transparency at all, making it unsuitable for logos or graphics needing a see-through background.
- Compression and file size: JPG uses lossy compression well-suited to photographs, generally producing smaller files for photo content. PNG uses lossless compression, better for sharp graphics but often larger for photos. WebP is designed to offer strong compression for web use, often smaller than both for comparable quality.
- Compatibility: JPG has the broadest, longest-standing compatibility across nearly all software and platforms. PNG is also widely supported. WebP is newer and, while now broadly supported by modern browsers and software, can still cause issues with older programs.
- Best use case: JPG suits photographs and images where transparency isn't needed. PNG suits logos, graphics and anything needing transparency or sharp edges. WebP suits web use where fast loading matters and the target software supports it.
- Editing and re-compression: Repeatedly editing and resaving a JPG can degrade quality over successive saves. PNG, being lossless, doesn't degrade with repeated saves. WebP behavior depends on whether lossy or lossless mode is used.
Which One to Use
For a photo being uploaded to a form or shared casually, JPG remains the safest, most compatible default. For a logo or anything needing a transparent background, PNG is the more reliable choice. For website use where page load speed matters and modern browser support is guaranteed, WebP often offers the best balance of quality and file size.
Run Your Own Numbers
General comparisons only go so far — the right answer for you depends on your specific numbers. The JPG to PNG Converter tool lets you check your own situation directly, free and in under a minute.