PNG vs JPG vs WEBP: Which Format Should You Use?

PNG, JPG, and WEBP are the three formats you'll encounter constantly on the web, and each was built to solve a different problem. Picking the right one comes down to two questions: does the image need transparency, and is it a photograph or a graphic?

PNG is lossless and supports full transparency, which makes it the right default for logos, icons, screenshots, and any graphic with flat colors, sharp edges, or text. Because nothing is discarded when a PNG is saved, it's also the safest format to keep working files in if you'll be editing an image repeatedly — re-saving it never introduces additional quality loss. The trade-off is file size: PNG files, especially for photographic content, tend to be considerably larger than the equivalent JPG or WEBP.

JPG is a lossy format purpose-built for photographs. Its compression algorithm is tuned around how the human eye perceives color and detail, discarding information that's least noticeable while keeping file sizes small. It has no transparency support at all, and it's not a good fit for graphics with sharp edges or text, where its compression tends to introduce visible blur or ringing artifacts around hard boundaries. For photos destined for the web, email, or general sharing, JPG remains an extremely reliable default — it's also the most universally compatible format across every device, app, and platform in existence.

WEBP is the newest of the three, developed by Google specifically to outperform both JPG and PNG for web use. It supports both lossy and lossless compression modes, plus transparency, essentially combining the strengths of JPG and PNG into a single format — and at a comparable visual quality, WEBP files are typically 25–35% smaller than JPG. The catch is compatibility outside the browser: while every modern browser supports WEBP natively, some non-browser software, older tools, and certain print or design workflows still expect JPG or PNG specifically.

A practical rule of thumb: use PNG for logos, icons, and anything you'll keep editing; use JPG for photographs you need to work absolutely everywhere, including outside a browser; and use WEBP for photographs and graphics being served on a modern website where page speed matters and you control the delivery format.

None of these formats is objectively "best" — they're each optimized for a different job, and the right choice depends entirely on what the image is and where it's going.