Free PNG to WebP Converter

Drop in PNG or JPG images, choose a quality and get WebP files that are usually much smaller. The conversion happens inside your browser, so your images are never uploaded anywhere, and you can convert a whole folder at once.

How it works

  1. Drop images on the box or click to choose them. PNG, JPG, GIF (first frame) and existing WebP files all work.
  2. Set the quality. 80 is a good default for photos; go higher for images with fine text or sharp edges.
  3. Each image is drawn onto a canvas in your browser and exported as WebP. You see the old size, the new size and the saving.
  4. Download files one by one, or download all of them.

Why WebP makes your website faster

Images are usually the heaviest thing on a web page. On a typical small business homepage the hero photo alone can be larger than all the text, code and fonts combined. Every extra kilobyte has to travel over a phone connection before the page looks finished, which is exactly what Google measures with Largest Contentful Paint.

WebP is an image format made by Google for the web. It compresses photos more efficiently than JPG and supports transparency like PNG, so one format covers both jobs. Swapping a 900 KB PNG hero for a 120 KB WebP is often the single biggest speed win on a small site.

Choosing the right quality

Quality is a trade between file size and detail. For photos of people, food, rooms or products, 75 to 85 looks the same as the original to almost everyone. For screenshots, charts or images with small text, use 90 or above, because low quality creates blurry halos around sharp edges.

The best way to decide is to convert once, open the result at full size next to the original, and lower the quality until you can see a difference, then go one step back up.

Using WebP images on your site

Most website builders and content systems accept WebP uploads just like JPG. If you write HTML yourself, a normal img tag works: set width and height so the page does not jump while the image loads, add a descriptive alt text, and add loading="lazy" to images further down the page.

Sites built with We.Inc already serve optimised images, but converting your own photos before uploading still keeps your storage small and your pages quick.

Tips

  • Resize before you convert. A 4000 pixel wide photo shown at 1200 pixels wastes most of its bytes, whatever the format.
  • Keep transparent PNG logos as WebP: WebP supports transparency, so the background stays see-through.
  • If a converted file comes out larger than the original (it happens with tiny icons and already-optimised files), keep the original.
  • Name files with words that describe the picture, like 'blue-kitchen-renovation.webp'. It helps image search a little and helps you a lot.

Frequently asked questions

Is this WebP converter free and private?

Yes. It is free, needs no signup, and the conversion runs entirely in your browser using the built-in canvas. Your images are not uploaded to We.Inc or anyone else.

Does WebP work in every browser?

Every current version of Chrome, Edge, Firefox and Safari shows WebP images. Safari added support in version 14 (2020), so only very old devices cannot display them.

How much smaller is WebP than PNG or JPG?

It depends on the image. Photos saved from PNG often shrink by 70 to 90 percent. Compared with a well-compressed JPG, a WebP at similar quality is typically 25 to 35 percent smaller. The tool shows the exact saving for each file.

Does converting keep transparency?

Yes. Transparent areas in a PNG stay transparent in the WebP. JPG has no transparency, so JPG sources stay fully opaque.

Why did one file get bigger?

Very small or already heavily optimised images can grow slightly when re-encoded. The tool flags this so you can keep the original for that file.

Can I convert WebP back to PNG or JPG?

Yes. Use the free image compressor on We.Inc, which can save to JPG, PNG or WebP.

Related: Image Compressor, Favicon Generator, Social Media Image Sizes, Website Checker.

Start for free or see how the We.Inc AI website builder works. The free plan gives you up to 3 template sites on a we.inc address, with no AI and no custom domain. AI building starts at $20 a month.

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