What Is WebP

WebP is a modern image format built for the web that produces smaller files than JPG or PNG while still supporting transparency and animation. In short, it is the all-rounder that loads faster without looking worse.

Quick answer

WebP is an image format developed by Google that compresses photos and graphics more efficiently than older formats. It can be lossy like JPG or lossless like PNG, it supports transparent backgrounds and animation, and every major browser now displays it. For most website images, WebP gives you the smallest file at the same visible quality.

What WebP is

WebP (pronounced "weppy") is a single format that tries to do everything older formats split between them. JPG is great at shrinking photos but cannot store a transparent background. PNG keeps perfect detail and transparency but produces large files. WebP folds both jobs into one: it can compress a photo tightly like JPG or preserve every pixel like PNG, all in the same .webp file.

The payoff is size. For the same quality, a WebP file is usually noticeably smaller than its JPG or PNG equivalent, which means pages load faster and use less bandwidth. That speed is the main reason WebP has become a default for web images.

Lossy vs lossless

WebP comes in two flavors. Lossy WebP throws away some fine detail to make the file much smaller, the same idea JPG uses, and you set a quality level to balance size against sharpness. A setting around 80 percent usually looks identical to the original while cutting size dramatically.

Lossless WebP keeps every pixel exactly, like PNG, which is the right choice for logos, screenshots, and sharp graphics where soft edges would show. Because one format handles both modes, you do not have to switch formats when an image changes from a photo to a flat graphic. For a deeper side-by-side on how these compression styles differ, see PNG vs JPG vs WebP.

Transparency and animation

WebP supports an alpha channel, which means see-through areas just like PNG. A logo or product cutout saved as WebP can drop onto any background, and it will usually weigh far less than the same image as PNG. That makes WebP a strong choice for icons, badges, and anything with a transparent edge.

WebP also handles animation, so it can replace bulky animated GIFs. An animated WebP supports millions of colors and smooth frames at a fraction of a GIF's file size, which is useful for short loops and UI animations on the web.

Browser support

WebP is widely supported today. Chrome, Firefox, Edge, Safari, and Opera all display WebP images, and so do the mobile browsers on Android and recent versions of iOS. For practical purposes, you can use WebP across the modern web without a fallback.

The main exception is very old software: legacy email clients, dated desktop apps, and old operating systems may not recognize a .webp file. If you are sharing an image into one of those environments, convert it back to JPG or PNG first.

When to use WebP vs JPG or PNG

Reach for WebP for nearly any image that lives on a web page, since it loads fastest while looking just as good. Use lossy WebP for photos and lossless WebP for graphics that need crisp edges.

Stick with JPG when you need maximum compatibility with old systems or you are handing a file to someone on dated software. Stick with PNG when a tool in your workflow expects it, or when you want a universally readable lossless master. A common pattern is to keep a PNG or JPG original and export WebP copies for the website. If you plan to enlarge an image later, our notes on how image upscaling works pair well with starting from a lossless file.

How to convert to WebP

Converting is the easy part. To shrink existing web images, run them through PNG to WebP for graphics and transparent cutouts, or JPG to WebP for photos. Both keep full resolution and let the format do the size savings.

When you need an image back in a more widely supported format, WebP to PNG restores a lossless, universally readable file. All of these run free in your browser through the image converter, and you can pair conversion with the compressor or resizer to get every web image to its smallest sensible size.

FAQ

Is WebP better than JPG and PNG?

For web use, usually yes. WebP makes smaller files at the same visible quality and supports both transparency and animation. JPG and PNG still win when you need maximum compatibility with old software.

Do all browsers support WebP?

All major modern browsers display WebP, including Chrome, Firefox, Edge, Safari, and Opera on desktop and mobile. Only very old browsers and legacy apps may not, so convert to JPG or PNG for those.

Does WebP support transparency?

Yes. WebP has an alpha channel like PNG, so it can store transparent backgrounds, and the file is usually much smaller than the equivalent PNG.

Will converting to WebP lose quality?

Lossy WebP drops a little detail to save space, much like JPG, but at a quality of around 80 percent the difference is hard to see. Lossless WebP keeps every pixel exactly, so it loses nothing.

How do I open a WebP file on old software?

If an app cannot read WebP, convert it first with WebP to PNG for a lossless copy, or export a JPG for photos. Both formats are readable almost everywhere.