JPG vs PNG vs WebP: choose the right image format
JPG, PNG, and WebP solve different problems. The right choice depends on whether the image is a photo or graphic, whether it needs transparency, and which browsers or workflows must read it.
By PixoPublished
The short decision table
For photographs, start with WebP for the web and JPG when compatibility outside the browser matters. For logos, screenshots, diagrams, and images with hard edges, start with PNG or lossless WebP. Choose PNG or WebP when you need an alpha transparency channel.
| Need | Best starting point | Why |
|---|---|---|
| Photo on a website | WebP | Usually smaller than JPG at comparable visual quality |
| Photo for broad sharing | JPG | Nearly universal support |
| Logo or interface graphic | PNG or lossless WebP | Keeps sharp edges clean |
| Transparency | PNG or WebP | Both support alpha transparency |
| Archival master | PNG or original source | Avoids another lossy generation |
When JPG is the practical choice
JPG uses lossy compression designed for continuous-tone images such as photographs. It remains the safest delivery format when a file may pass through older apps, printers, document systems, or social platforms. Repeatedly editing and re-saving a JPG can accumulate visible artifacts, so keep the original master.
When PNG earns its larger size
PNG is lossless and handles transparent pixels. It is dependable for screenshots, UI captures, diagrams, and graphics with text. A photographic PNG is often unnecessarily large because lossless compression preserves detail that a photo viewer is unlikely to notice.
When WebP is the best web default
WebP supports lossy and lossless compression plus transparency. It is broadly supported in current browsers and often reduces transfer size, but some non-browser workflows still expect JPG or PNG. Keep a fallback when your audience includes a constrained CMS, email client, or asset pipeline.
Test the image you will publish
Format rules are starting points, not guarantees. Export one representative image in two candidate formats, compare them at the final display size, and inspect the byte count. Pixo can convert and compress locally, so the source image does not need to leave your browser.