PNG to WEBP Converter Online ( Free & Without losing Quality)

Free online image tool

PNG to WebP Converter

Convert PNG, JPG, GIF and BMP images to WebP in seconds. Everything runs inside your browser, so your files are never uploaded. Batch convert, compare before and after, and download a ZIP.

100% private
No sign-up
Batch convert
Keeps transparency
ZIP download

Drop images here, or paste with Ctrl+VPNG, JPG, GIF, BMP, AVIF, WebP · up to 50 files · 25 MB eachChoose images

WebP quality 80

Smaller fileBetter quality

Max width

0files uploaded

50images per batch

25 MBper image

Freeno watermark

Why WebP

Smaller images. Faster pages.

Images are usually the heaviest part of a web page. WebP keeps the quality you need at a much smaller file size, which helps pages load faster and score better on Core Web Vitals.

26%

smaller than PNG

Google reports that lossless WebP images are about 26% smaller than PNGs.

25–34%

smaller than JPEG

Lossy WebP is 25–34% smaller than comparable JPEG images, according to Google.

LCP

loads sooner

Lighter hero images paint faster, which improves Largest Contentful Paint.

Alpha

transparency kept

Unlike JPEG, WebP supports transparent backgrounds for logos and cut-outs.

Features

Everything you need to convert images

A fast, no-nonsense converter with the controls that matter, and none of the upload queues, accounts or watermarks.

Batch conversion

Add up to 50 images at once. Each file converts separately and shows its own savings.

Before and after slider

Drag the divider to compare the original and the WebP result before you download.

Quality control

Fine-tune from 10 to 100 or use presets. Changing a setting re-converts instantly.

Resize on export

Cap the width at 4K, Full HD, 1280 px or smaller to cut file size even further.

One-click ZIP

Download every converted image in a single ZIP file with clean, de-duplicated names.

Paste and drop

Drag files in, browse, or paste a screenshot straight from the clipboard with Ctrl+V.

Transparency preserved

PNG alpha channels carry over, so logos and icons keep their transparent backgrounds.

Private by design

Conversion happens on your device. Your images never touch a server.

How it works

Convert PNG to WebP in 4 steps

It takes a few seconds, and you can convert as many images as you like.

Add your imagesDrag them onto the box, click Choose images, or paste a screenshot with Ctrl+V.
Set quality and size75–85 suits most photos. Pick a max width if the original is bigger than your page needs.
Check the resultSee the size saved for each file and drag the compare slider to inspect the quality.
DownloadSave files one by one, or use Download all to get a single ZIP.

Explained

What is WebP?

WebP is an image format introduced by Google in 2010 and now supported by all current major browsers. It was built for the web: small files, good quality, and features that older formats lack.

A single WebP file can use lossy or lossless compression, support transparency, and even hold an animation. That makes it a practical replacement for PNG, JPG and GIF in most website and app projects.

This converter uses your browser’s own WebP encoder, so the result depends on your browser. Chrome, Edge and Firefox work well.

Lossy WebP

Discards detail the eye barely notices to shrink the file. Best for photos and most web images. Lower quality means a smaller file.

Lossless WebP

Keeps every pixel exactly. Best for graphics where precision matters, and typically smaller than the equivalent PNG.

Compare

WebP vs PNG vs JPG vs AVIF

Choosing a format comes down to the kind of image and where it will be used.

Format	Compression	Transparency	Animation	Best for
WebP	Lossy and lossless	Yes	Yes	Almost everything on the web: photos, screenshots, logos
PNG	Lossless	Yes	No (APNG only)	Editing masters and pixel-exact graphics
JPG	Lossy	No	No	Photos where maximum compatibility matters
AVIF	Lossy and lossless	Yes	Yes	Smallest files, but slower to encode

Browser-based vs upload-based converters

What matters	Typical upload-based converter	This converter
Where files are processed	On a remote server	On your device
Privacy	Your image leaves your device	Nothing is uploaded
Speed	Upload and download time	Instant, no waiting for a server
Sign-up and watermarks	Often required on free plans	None
Metadata (EXIF, GPS)	Varies	Removed from the output

Quality guide

Best WebP quality for every image

There is no single best number. Pick a preset to jump straight into the converter, then compare the result with the slider.

65/100

Thumbnails and backgrounds

Small or blurred areas hide compression well, so you can save the most.

80/100

Blog photos and articles

Strong savings with no visible loss at normal viewing size.

85/100

Product photos

Keeps fabric, texture and edge detail that customers zoom into.

90/100

Screenshots and text

Low quality blurs small text and sharp interface edges.

100/100

Logos and flat graphics

Hard edges and flat colour show compression artefacts first.

Tip: lower the quality until you can just see a difference, then step back up a little.

Use cases

Who uses a PNG to WebP converter?

Anyone who publishes images online and wants them to load faster.

Bloggers

Shrink featured images and screenshots so articles load quickly on mobile connections.

Online stores

Lighter product photos mean faster category pages, which helps keep shoppers on the page.

Web developers

Prepare assets for production without opening a heavy editor or command line tool.

Designers

Export lightweight versions of designs and keep the transparent backgrounds intact.

Photographers

Create web-ready previews. Re-encoding also strips camera and GPS metadata.

Marketers and SEOs

Fix image-delivery warnings in PageSpeed Insights and improve page experience.

Page speed

WebP and Core Web Vitals

Google uses page experience signals, including Core Web Vitals, alongside many other factors. Images affect two of them directly: LCP, because the hero image is often the largest element, and CLS, when images load without reserved space.

≤ 2.5 sGood LCP

≤ 0.1Good CLS

≤ 200 msGood INP

Image SEO checklist

Use a descriptive file name such as blogger-seo-checklist.webp.
Write meaningful alt text for every informative image.
Set width and height so the browser reserves space.
Lazy-load images below the fold, but never your main LCP image.
As a rule of thumb, aim to keep hero images to a few hundred KB or less.

<picture>
  <source srcset="photo.webp" type="image/webp">
  <img src="photo.png"
       alt="Describe the image"
       width="1200" height="675"
       fetchpriority="high">
</picture>

Below-the-fold image

<img src="photo.webp"
     alt="Describe the image"
     width="800" height="450"
     loading="lazy" decoding="async">

Use the <picture> fallback if you need to support very old browsers. Give your main hero image fetchpriority="high", and lazy-load everything further down the page.

Platforms

Where to use your WebP images

WebP works across the most popular website platforms and in plain HTML.

WordPress

WebP uploads are supported in the media library from version 5.8.

Shopify

The CDN already serves WebP to supported browsers. Well-compressed uploads keep your admin and theme light.

Blogger

Insert the converted file in the post editor and confirm it displays after publishing. If an upload is rejected, keep the PNG.

HTML and CSS

Reference the .webp file in img, picture or background-image.

Mistakes to avoid

Re-saving lossy WebP

Every lossy re-encode removes more detail. Always convert from your original PNG or JPG.

Upscaling small images

Making an image larger adds file size but no detail. Convert at the size you will display.

Converting animated GIFs

This tool converts only the first frame of a GIF, so the result is a still image.

Privacy

Your images never leave your device

Most online converters upload your files to a server. This one doesn’t. The conversion runs in your browser using your own device, which makes it a safe choice for client work, private photos and unreleased designs.

No uploads

Files are processed locally and are not sent to any server.

No account

No sign-up, no email, no limits tied to a login.

Metadata removed

EXIF data such as camera details and GPS location is dropped from the output.

Is this PNG to WebP converter free?

Yes. It is completely free, needs no account, and has no watermark or daily limit.

Are my images uploaded to a server?

No. The conversion runs in your browser using your device. Your files never leave your computer or phone, which also makes it safe for private or client images.

How do I convert PNG to WebP?

Drag your PNG files onto the converter or click Choose images, set the quality, then download each file or the full ZIP. A quality of 75 to 85 works well for most images.

Does WebP keep PNG transparency?

Yes. WebP supports an alpha channel in both lossy and lossless modes, so transparent backgrounds in logos and cut-outs are preserved.

Which WebP quality should I choose?

Use 75 to 82 for blog photos, 82 to 88 for product photos, and 85 or higher for screenshots, text and logos. Compare the file size shown next to each image and lower the quality until you can just see a difference, then step back up a little.

Is WebP better than PNG or JPG?

For web use, usually yes. Google reports that lossless WebP is about 26% smaller than PNG and lossy WebP is 25 to 34% smaller than comparable JPEG. PNG is still a good master format for editing, because it never loses quality.

Which browsers support WebP?

All current versions of Chrome, Edge, Firefox, Safari and Opera can display WebP. To convert with this tool, use a recent Chrome, Edge or Firefox, because some browsers cannot encode WebP from a canvas.

Can I convert many images at once?

Yes. Add up to 50 images in one go. Each is converted separately, and you can download them all as a single ZIP file.

Why is my WebP file bigger than the original?

Images that are already heavily compressed, such as small optimised JPGs, can grow when re-encoded. The tool marks these with a plus sign. In that case lower the quality, reduce the width, or keep the original.

Can I convert an animated GIF to WebP?

This tool converts only the first frame of a GIF, so the result is a still image. Use a dedicated animation tool if you need an animated WebP.

Does using WebP help SEO?

Indirectly, yes. Smaller images load faster and can improve Largest Contentful Paint, which is part of Core Web Vitals. Google can also index WebP images in Google Images, so use descriptive file names and alt text.

Does the converter remove metadata?

Yes. Re-encoding through the browser drops EXIF data such as camera details and GPS location, which is useful before publishing photos online.

What is the maximum image size WebP supports?

The WebP format supports images up to 16,383 pixels on each side. This tool accepts files up to 25 MB, and very large images may also hit your browser's own canvas limits.

Can I convert WebP back to PNG or JPG?

This tool outputs WebP only. To go the other way, open the WebP file in an image editor or a browser and export it as PNG or JPG.

Is quality 100 the same as lossless?

Not necessarily. Quality 100 gives the highest fidelity, and some browsers may switch to lossless encoding at that setting, but this varies. If you need a pixel-exact archive copy, keep your original PNG.

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Last updated: October 2026