The format decision matters more than you think
Images typically account for 60–70% of a web page's total size. Choosing the right format is the highest-impact performance decision you can make — often more valuable than any amount of code optimisation.
JPG — best for photographs
JPG uses lossy compression tuned for natural images. It produces small files for photos but adds visible artifacts at low quality settings. It has no transparency support. Use it for product photos, backgrounds, and any photographic content where a slight quality trade-off is acceptable.
PNG — best for graphics and transparency
PNG is lossless, meaning every pixel is stored exactly. It's the right choice for logos, icons, screenshots, and anything that needs a transparent background. The downside is larger files compared to JPG for photographic content.
WebP — best for general web use
WebP delivers 25–35% smaller files than JPG at equivalent quality and also supports transparency. Browser support is universal in 2026. Converting your existing JPGs to WebP with our JPG to WebP converter is one of the easiest wins for page speed.
AVIF — best for maximum compression
AVIF achieves roughly 50% smaller files than JPG. Support across major browsers is solid as of 2026. Convert with our JPG to AVIF converter for the best compression available.
SVG — best for logos and icons
SVG stores shapes as mathematical descriptions, not pixels. This means it looks sharp at any size — on a phone screen or a billboard. Convert raster logos to SVG with our PNG to SVG converter.
| Format | Type | Best for |
|---|---|---|
| JPG | Lossy | Photographs |
| PNG | Lossless | UI elements, logos, transparency |
| WebP | Both | General web images |
| AVIF | Lossy | Maximum compression |
| SVG | Vector | Icons and logos |
Frequently Asked Questions
- Should I use WebP or AVIF in 2026?
- Both are excellent choices. WebP has universal browser support and is the safest default. AVIF produces 20–30% smaller files but is better suited for high-traffic sites where that extra saving matters.
- Can I convert JPG to WebP for free?
- Yes — our JPG to WebP converter is completely free, processes images directly in your browser, and never uploads your files anywhere.
- Does converting to WebP reduce image quality?
- At quality 80–85, WebP output is visually indistinguishable from the original JPG for almost all photographic content. You can set the quality level in our converter to find the right balance.