JPG vs PNG vs WebP: Which Image Format Should You Use?

You export a picture and the editor asks you to choose: JPG, PNG or WebP. Most people pick whatever is first on the list. That is fine until the logo has a grey box around it, the screenshot looks fuzzy or the page that was supposed to load fast still crawls. Each format was designed for a different job, and once you know what those jobs are, the choice is almost always obvious.

The short answer

Use JPG for photographs, PNG for logos, screenshots and anything with sharp lines or transparency, and WebP when you want the smallest file for a website and you know visitors use modern browsers. The rest of this guide explains why.

JPG (or JPEG)

JPG has been the standard photo format for decades. It uses lossy compression, which means it throws away some detail that the eye is unlikely to notice. That is why a 12-megapixel photo can be a few megabytes rather than tens of megabytes.

Strengths

• Excellent for photos with smooth gradients and natural colours.
• Small files, and you control the balance with a quality setting.
• Works everywhere: every phone, browser, printer and program.

Weaknesses

• No transparency. A transparent area is filled with a colour.
• Poor with text, thin lines and flat colour. Edges become fuzzy, with small blotches around them.
• Each time you edit and save again, quality drops a little more.

PNG

PNG uses lossless compression. It stores the picture exactly, with no detail thrown away, and it supports transparency. That makes it the right choice for anything where precision matters.

Strengths

• Sharp text and clean edges, so it is ideal for screenshots, diagrams and interface designs.
• Supports transparent backgrounds, so logos can sit on any colour.
• No quality loss when you save repeatedly.

Weaknesses

• Big files for photographs. A photo saved as PNG is often several times larger than the same photo as a JPG.
• Not the best choice for pictures that will be shown on a website at full width.

WebP

WebP is a newer format created for the web. It can compress lossily like JPG or losslessly like PNG, supports transparency and can hold animation. At a similar visual quality, WebP files are usually smaller than JPG or PNG, which makes pages load faster.

Strengths

• Smaller files than JPG and PNG in many cases.
• One format that can cover photos, graphics with transparency and animations.
• Supported by all current major browsers.

Weaknesses

• Some older software, printers and apps cannot open it. You may need to convert it before sharing with a person who uses an older program.
• Many upload forms still expect JPG or PNG and reject WebP.

What about GIF, SVG and HEIC?

GIF is an old format for simple animations. WebP or a short video usually does the same job in a smaller file. SVG is a vector format. It stores shapes rather than pixels, so logos and icons look perfectly sharp at any size and are tiny. If you have a logo in SVG, use it on your website. HEIC is the format iPhones use by default. It is efficient but not accepted everywhere, so convert it to JPG before sharing.

Which format for which situation

• Blog photos and product pictures: JPG or WebP, resized to the width they are shown at.
• Logos and icons: SVG if you have it, otherwise PNG.
• Screenshots for tutorials: PNG, so that the text stays sharp.
• Pictures you will edit again: PNG, or keep an original, since JPG loses quality each time you save.
• Email and messaging: JPG, because everyone can open it.
• Printing: JPG at high quality, or PNG for graphics, depending on what the print shop accepts.

How to convert between formats

With the Image Converter you pick a file, choose JPG, PNG or WebP and download the converted copy. It runs in your browser, so the picture is not uploaded.

Keep a few points in mind when you convert:

• PNG to JPG removes transparency. Transparent areas are filled with a solid colour, and may turn black in some converters.
• JPG to PNG does not bring back detail that was already lost. The PNG will look the same as the JPG, only larger.
• To WebP is a good last step for the web. Keep the original in a format you can edit.

A note on choosing for a website

If you run a website, the best approach is usually to keep your originals in a lossless or high-quality format, then export web copies. Export photos as WebP or high-quality JPG, keep logos and screenshots as PNG, and use SVG for simple graphics. Many sites serve WebP with a JPG fallback for older software. Whatever you choose, test the page on a phone: if images look soft or take a long time to appear, adjust the size or quality and try again. Consistency matters too. Using the same few formats and sizes across your site makes it easier to maintain and gives visitors a more polished experience.

Reducing size after you choose

The right format is only half the story. Resize the picture to the width it is shown at, then compress it. Our guide on compressing images explains the quality settings, and the Image Resizer handles dimensions.

Choosing the right format is essential, if you have any format, then you can convert them to any format

Common questions

Is WebP better than JPG?

For websites, usually yes, because files are smaller at similar quality. For sharing with people and printing, JPG is safer because it opens everywhere.

Why is my PNG so big?

PNG keeps every detail. For photos that means very large files. Use JPG or WebP for photographs.

Why did my logo get a white or black box?

It was probably saved as JPG, which cannot store transparency. Use PNG or WebP.

Does converting change the picture?

Converting to a lossy format such as JPG or WebP can lose a little detail. Converting to PNG keeps what is there. Always keep your original.

Final thoughts

You do not need to remember every technical detail. Photos go in JPG or WebP, sharp graphics and transparency go in PNG, and the original stays safe in a folder. When you need to switch, the Image Converter does it in a few seconds.