If you want smaller images without giving up quality, WebP is the format to know. Developed to replace the ageing JPG and PNG formats for web use, WebP delivers the same visual quality in noticeably smaller files. That means faster pages, lower bandwidth bills, and happier visitors. For years its weak spot was browser support, but that excuse is gone: every modern browser now reads WebP, so there has never been a better time to adopt it.

This guide explains what makes WebP special, when to use it over the older formats, and exactly how to convert your images. You will also learn how to keep the rare old browser happy with a simple fallback. By the end you will be ready to start saving real bytes with the tinyimgcompress WebP converter.

What Is WebP?

WebP is an image format designed specifically for the web. Its clever encoding lets it represent the same image as a JPG or PNG using fewer bytes, typically 25 to 35 percent smaller than a JPG of equivalent quality and often dramatically smaller than a PNG. Crucially, it is flexible: WebP supports both lossy compression, like JPG, and lossless compression, like PNG, and it can store transparency too.

That versatility is what sets WebP apart. A single format can handle your photographs, your transparent logos, and your flat graphics, doing the job of both JPG and PNG while producing smaller files than either. For a website that means fewer formats to juggle and consistently lighter pages.

WebP came out of an effort to modernise web images, and it has since been joined by even newer formats aimed at the same goal. But WebP hits a particularly useful sweet spot: it is meaningfully smaller than the old formats, it is genuinely universal across today's browsers, and the tools to create it are simple and free. Newer formats may eventually offer a little more compression, yet they do not yet enjoy the same breadth of support. For most people building or running a site today, WebP is the practical choice that delivers real savings without compatibility headaches.

Why WebP Beats Older Formats

The headline benefit is size. Because images are the heaviest part of most pages, shaving a third off every image file translates directly into faster loads and better Core Web Vitals scores. On a content-rich page that can mean the difference between a sluggish experience and a snappy one, particularly on mobile connections.

WebP also unifies what used to be two separate decisions. Instead of asking whether an image should be JPG for compression or PNG for transparency, you can often reach for WebP and get both advantages at once. Our comparison of PNG vs JPG and which to use explains the old trade-off that WebP largely dissolves.

When to Use WebP, and When Not To

WebP is an excellent default for images you serve on a website you control, but it is not always the right answer.

  • Use WebP for photos, graphics, and transparent images on your own site, where you can control delivery and provide a fallback if needed.
  • Stick with JPG when an image must work in every conceivable context, such as an email attachment, an upload to a platform you do not control, or a file shared with someone on unknown software.
  • Keep PNG as your editing master for graphics, then export WebP for delivery, so you always have a lossless original to work from.

In short, WebP is for delivery on the modern web, while JPG remains the universal exchange format. Our guide to the best image format for the web places WebP in the wider context.

How to Convert Images to WebP: Step by Step

Converting is quick and happens entirely in your browser, so your files never leave your device.

  1. Resize first. Bring the image to its display dimensions with the resize tool so you are not converting wasted pixels.
  2. Open the converter. Drop your JPG or PNG into the WebP converter.
  3. Choose lossy or lossless. Use lossy for photographs and lossless for flat graphics that need perfect edges. If you would rather stay with JPG, the image compressor shrinks photos too.
  4. Compare the result. Check the preview and the new file size to confirm the quality holds while the bytes drop.
  5. Download and deploy. Save the WebP file and use it on your site, ideally with a fallback as described below.

That is the whole process. For a typical photo you will often see the file size fall by a third compared with a JPG of the same visible quality.

WebP vs JPG vs PNG: A Quick Comparison

Here is how the three formats line up for web delivery.

  • File size: WebP is usually smallest, JPG is small for photos, PNG is largest for photos.
  • Transparency: WebP and PNG support it; JPG does not.
  • Compression modes: WebP offers both lossy and lossless; JPG is lossy only; PNG is lossless only.
  • Compatibility: JPG and PNG work literally everywhere; WebP works in every modern browser but not every old tool.
  • Best role: WebP for on-site delivery, JPG for universal sharing, PNG for graphics masters.

The pattern is clear: WebP wins on size and flexibility, while the older formats win on universal compatibility.

Keeping Older Software Happy With Fallbacks

Although every current browser supports WebP, you may occasionally need to serve an image to something that does not, such as a very old device or a third-party tool. The standard solution on the web is the picture element, which lets the browser pick WebP if it can and fall back to a JPG or PNG if it cannot. You provide both files, and each visitor automatically gets the best one their software supports.

This belt-and-braces approach means you capture the size savings for the overwhelming majority of visitors while never showing a broken image to the rare exception. Many content platforms and plugins handle the fallback for you automatically once you provide the WebP version, so in practice you often need only supply the WebP file and let the system serve the right format to each visitor without any further effort on your part.

Fitting WebP Into Your Workflow

WebP works best as the final delivery step in the optimisation routine you already follow. Resize the image, decide on lossy or lossless, convert, and ship. Keep your editable master in its original format, whether that is a layered design file or a lossless PNG, so you can always re-export. For photos that started life as heavy files, you can pre-shrink them with the image compressor before converting, a workflow covered in our guide to compressing images without quality loss, and for the wider speed benefits see how to make images load faster.

Conclusion

WebP is the modern web's answer to the old trade-off between small files and good quality. It compresses photos smaller than JPG, handles transparency like PNG, and is supported by every current browser, with a simple fallback covering the rare exception. Adopt it as your delivery format and every page you publish gets lighter. Try it now by dropping an image into the WebP converter and watching how much smaller the same picture becomes.