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Image Format Guide
A clear reference for choosing the best image format for performance, clarity, and everyday use cases.
Why format choice matters
The best format depends on image type, transparency needs, and target file size.
JPG, PNG, WebP, AVIF, and SVG solve different problems. Choosing the right one improves page speed, keeps exports readable, and makes it easier to share assets across social platforms and websites.
Performance note
Smaller image files help websites feel faster, especially on mobile. If a page is image-heavy, choosing the right format can improve both user experience and perceived quality.
Quick comparison
| Format | Best for | Transparency | Typical file size | Recommended use |
|---|---|---|---|---|
| JPG | Photos and social media | No | Medium | Fast uploads and broad compatibility |
| PNG | Screenshots, UI assets, graphics | Yes | Medium to large | When crisp edges and transparency matter |
| WebP | Web delivery and modern sites | Yes | Small | Balanced compression and quality |
| AVIF | Modern performance-focused assets | Yes | Very small | High compression with good visual quality |
| SVG | Logos, icons, simple illustrations | Yes | Very small | Vector shapes that scale without blur |
How to choose
- Use JPG for photos and social uploads when broad compatibility matters.
- Use PNG for screenshots, UI assets, and images that need transparent backgrounds.
- Use WebP or AVIF for faster web delivery when browser support is acceptable.
- Use SVG for logos and icons that need to scale crisply on any screen size.
Common mistakes
- Uploading a large PNG when a JPEG or WebP would be better for photography.
- Keeping massive screenshots in PNG when a smaller export is sufficient.
- Ignoring the final use case: a logo for a website and a logo for print need different handling.
- Forgetting to test the exported file on the target platform before publishing.
Related Letido image tools
Frequently asked questions
Is WebP better than JPG?
WebP is often smaller than JPG at similar perceived quality, especially for photography and web graphics. JPG is still widely supported and remains a practical choice for many uploads.
Should I use PNG or JPG for screenshots?
PNG is best for screenshots with text and crisp edges, while JPG is better for photographs or mixed-color images where file size matters more than pixel-perfect sharpness.
Is AVIF good for websites?
Yes, AVIF is strong for modern web performance because it can deliver high compression efficiency. Browser support is broadly good, but you may still want a WebP or JPG fallback when compatibility matters.
What format is best for logos?
SVG is usually the best choice for logos and icons because it scales cleanly and stays lightweight. PNG is a practical fallback when you need rasterized output.
How do I reduce image size without losing too much quality?
Start with the smallest format that still meets your needs. Reduce dimensions first, then lower quality gradually and review the result before exporting.