Is WebP better than JPG?

Usually yes in terms of file size: a WebP at the same quality tends to be smaller. JPG, however, works with more programs and devices, so it remains safer for sharing and printing.

Why is my PNG file so large?

PNG stores everything without loss, and photos contain countless subtle colour variations, so the file grows. If you do not need transparency, converting the photo to JPG will shrink it a lot.

Can Windows open WebP files?

Every modern browser can. Newer versions of Windows and macOS also open it in their default viewers, but if some program refuses it, the simple fix is to convert it to JPG or PNG.

How many times can I re-save a JPG?

Technically unlimited, but each lossy save degrades quality a little. Work from the original and create a JPG only for the final version.

JPG vs PNG vs WebP: Which Image Format to Choose

JPG, PNG and WebP are the three most common image formats on the web, but each was built for a different job. Picking the right one can cut a file size in half or save you from ugly compression artifacts. This guide explains how they differ and when each one makes sense.

Lossy vs lossless: the core difference

Image formats fall into two groups. Lossy compression shrinks a file by throwing away detail the human eye barely notices. Lossless compression shrinks it the way a ZIP archive does: you get back exactly the same image, but the savings are smaller.

JPG (also called JPEG) is always lossy. PNG is always lossless. WebP can work in either mode, which makes it the most flexible of the three.

JPG: the standard for photos

JPG was designed for photographs with lots of smooth colour transitions. For that kind of image it is very efficient: an average photo is often several times smaller than the same picture saved as PNG. Virtually everything opens it: phones, browsers, print shops and old computers.

The downsides: JPG has no transparency, and sharp edges and text pick up visible artifacts (fuzzy halos around letters). Also, each time you open, edit and re-save a JPG, quality drops slightly.

PNG: screenshots, logos and transparency

PNG keeps every pixel exactly and supports a transparent background. That makes it the right choice for logos, icons, diagrams, screenshots and anything with text or crisp lines.

The price is file size. A real photograph saved as PNG can be several times larger than a JPG, which means slower page loads. Unless you need transparency or lossless editing, photos usually should not be stored as PNG.

WebP: the modern alternative

WebP was created by Google. It supports lossy and lossless compression, transparency and even simple animation. At similar visual quality a WebP file is usually noticeably smaller than JPG or PNG, often by a quarter or more, though the exact gain depends on the image.

All modern browsers open WebP without trouble. However, some older programs, email clients, print services and upload forms still reject it, so you sometimes have to convert it back to JPG or PNG.

Comparison table

Feature	JPG	PNG	WebP
Compression	Lossy	Lossless	Both
Transparency	No	Yes	Yes
Animation	No	No (standard PNG)	Yes
Typical size (photo)	Small	Large	Smallest
Compatibility	Everywhere	Everywhere	Good in browsers, patchy elsewhere
Best for	Photos	Logos, screenshots	Web pages

What to pick in practice

A photo you will email or print: JPG.
A logo with a transparent background: PNG (or WebP if the platform accepts it).
A screenshot containing text: PNG.
Photos on your own website: WebP, so pages load faster.
A file for a government portal or an older system: JPG, the safest bet.

Converting does not restore lost quality

A common mistake is converting a JPG to PNG in the hope that it will look better. It will not. Once a photo has been saved as JPG, some detail is gone for good. PNG will simply preserve the already degraded version, and the file will get bigger. The same applies to turning a JPG into a lossless WebP.

Conversion makes sense when you need transparency support, compatibility or a smaller size. Whenever you convert, keep the original. Our converters run inside your browser, so your files are never uploaded to a server.

How to choose: a short decision checklist

Before converting or exporting an image, answer three questions. First: does the picture have transparent areas that must be kept? If so, JPG is out and you are choosing between PNG and WebP. Second: is it a photo or a graphic? Photos work well as JPG or WebP, while graphics with text and flat colours are better as PNG. Third: where will the file be used? If you are not sure the destination supports WebP, choose JPG or PNG.

A practical example: you have a 4000-pixel-wide photo from your phone. A web page or online shop does not need that size. Resized to around 1600 pixels wide and saved as JPG or WebP, the file often drops from several megabytes to a few hundred kilobytes with no visible difference on screen. Resizing often saves more than changing the format.

Quality setting: for JPG or WebP photos, roughly 75 to 85 out of 100 is usually enough. Lower shows visible blocks, higher grows the file with almost no visible gain.
Small icons and logos: PNG or SVG rather than JPG, because JPG damages sharp edges.
For printing, use the highest quality and do not reduce the resolution.
If you will keep editing the image, keep a PNG copy and export only the final version to JPG or WebP.