JPG vs PNG vs WebP: Which Image Format Should You Actually Use?
Choosing the wrong image format means unnecessarily large files, quality loss, or broken transparency. Here's the definitive guide to choosing the right format for every situation.
Quick answer: use this format when…
| Use Case | Best Format | Why |
|---|---|---|
| Photos, photography | JPG | Small file size, great quality for photos |
| Logos, icons, illustrations | PNG or WebP | Transparency support, sharp edges |
| Website images | WebP | Smallest file size, supported by all modern browsers |
| Screenshots | PNG | Lossless — preserves text sharpness |
| Background-removed images | PNG | Required for transparency |
| Social media photos | JPG | Universally accepted, small size |
| WhatsApp / messaging | JPG | Fastest to send, widest compatibility |
| Print images | PNG or TIFF | Lossless — no quality degradation |
JPG (JPEG): the universal photo format
JPG uses lossy compression — it permanently discards some image data to achieve smaller file sizes. For photographs with gradual colour transitions (landscapes, portraits, products), this trade-off is nearly invisible to the human eye at quality settings above 70%.
File size: Small — a typical phone photo compressed to JPG is 2–5MB
Transparency: Not supported — JPGs always have a background
Best for: Photos, social media images, email attachments
Avoid for: Screenshots (text becomes blurry), logos, images that need transparent backgrounds
PNG: the lossless quality standard
PNG uses lossless compression — no image data is discarded. Every pixel is preserved exactly. This makes PNGs noticeably larger than JPGs but ensures perfect image quality, which matters for text, sharp edges, and images you'll edit further.
File size: Large — a PNG version of a photo can be 3–10x the size of an equivalent JPG
Transparency: Supported — PNG supports full alpha channel transparency
Best for: Logos, icons, screenshots, images with text, transparent backgrounds
Avoid for: Large photo galleries (too slow to load), social media photos
WebP: the modern web standard
WebP was developed by Google to be the best of both worlds — smaller than JPG and PNG while supporting transparency. In practice, WebP files are 25–35% smaller than equivalent JPG files and 26% smaller than PNG at similar quality.
File size: Smallest — best compression of the three formats
Transparency: Supported
Best for: Website images, web applications, anywhere file size matters
Avoid for: When compatibility is uncertain (some older apps and email clients don't support WebP)
Real-world file size comparison
Same high-quality photograph (2000×1500px), three formats:
- PNG (lossless): 8.2MB
- JPG (quality 85%): 1.1MB
- WebP (quality 85%): 0.75MB
For website use, the difference between JPG and WebP (0.35MB per image) adds up significantly across a page with 20 images — that's 7MB difference in page load size.
How to convert between formats
Use Everyday Tools' image converter to convert between JPG, PNG, and WebP formats instantly. Common conversions:
- JPG to PNG — when you need transparency or lossless quality
- PNG to JPG — when you need smaller file size and don't need transparency
- WebP to JPG — when an app doesn't support WebP
- JPG/PNG to WebP — when optimising images for a website
Convert your images between formats — free
JPG, PNG, WebP, AVIF, GIF. No account needed.
Convert Image Free →Frequently asked questions
Does converting JPG to PNG improve quality?
No. Converting JPG to PNG does not recover quality lost during JPG compression. The PNG will be larger with no quality improvement. Convert to PNG before any further editing to prevent additional quality loss.
Why do my screenshots look blurry when saved as JPG?
JPG compression creates artifacts around sharp edges and text — exactly what screenshots contain. Always save screenshots as PNG for crisp, clear results.
Is WebP better than JPG?
For web use, yes — WebP produces smaller files at equivalent quality. For maximum compatibility (older devices, apps, email), JPG is safer.
Can I use WebP for WhatsApp images?
WhatsApp converts images it receives, so sending WebP works in WhatsApp itself. However, if you're sharing a file that someone might open in another app, JPG is more universally compatible.