How much smaller will the WEBP actually be?

For a typical photographic image, lossless WEBP runs 25–35% smaller than the source PNG, and lossy WEBP at quality 80 is often four to six times smaller. Flat graphics with few colours compress less dramatically in both formats, since PNG already handles them efficiently.

Will my transparent PNG stay transparent?

Yes. WEBP supports a full alpha channel in both lossless and lossy mode, so a see-through logo or icon keeps its transparency exactly. That is one of the reasons WEBP replaces PNG rather than JPG, which cannot store transparency at all.

Should I choose lossless or lossy?

Pick lossless for logos, icons and anything with flat colour or text, where a pixel-exact copy matters and the file is already small. Pick lossy for photographs and screenshots, where quality 75–85 looks close to the original at a much smaller size.

Will WEBP open in every program I use?

Every current browser displays it natively, and most modern editors support it directly or with a common plugin. A few older desktop viewers and some upload forms still expect PNG or JPG, so keep the source PNG if the file needs to work outside a browser.

Can I convert a whole folder of screenshots at once?

Yes. Add as many PNGs as you like and each is converted separately at the quality you set, then handed back individually or as a ZIP. Because the conversion runs on your own device, a large batch is limited by your computer’s memory rather than an upload queue, and nothing is sent anywhere in the process.

Are my files uploaded to a server?

No. The whole conversion runs in your browser using your device's own processor. Your files are never sent anywhere.

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Keyboard Shortcuts:

Ctrl+1-4: Quick tool access

Ctrl+H: Home

PNG to WEBP Converter

Convert PNG to WEBP right in your browser. Free, instant, and private — your files are never uploaded.

PNG to WEBP

Drop your PNG files here or click to browse

Drop images here, or tap to select

Supports .pngUp to 50 MB each

100% in-browser. Your files never leave your device.

Drop PNG files above to get started.

PNG keeps every pixel exact, which suits logos and screenshots but produces bigger files than a website really needs. WEBP compresses those same images far more tightly while keeping full transparency, so a page carrying dozens of graphics loads in a fraction of the time. This converts your PNG to WEBP in the browser, with a quality slider to set the trade-off.

Why the PNG you exported is heavier than it needs to be

PNG uses a general-purpose compression scheme (DEFLATE, the same family as a .zip file) that has no idea it is looking at a photo or an icon — it just squeezes repeated bytes. WEBP builds on prediction methods borrowed from video codecs, so it models how neighbouring pixels relate to each other before compressing, and that produces meaningfully smaller files for the same image.

The difference shows up fastest on real pages: a 1200×800 product screenshot exported as PNG often lands around 420 KB; the same image saved as lossless WEBP comes down to roughly 300 KB, and as lossy WEBP at quality 80 it drops to 60–90 KB with no visible change at normal viewing size. Multiply that across a page with twenty such images and the saving is the difference between a page that loads instantly and one a visitor waits on.

Lossless or lossy — which WEBP to export

WEBP is unusual in offering both modes from one format. Lossless WEBP re-creates the PNG’s pixels exactly, typically 25–35% smaller than the PNG for the same content, and is the right choice for a logo, an icon or any image where a single wrong pixel would matter. Lossy WEBP works more like JPG: it throws away detail the eye barely notices in exchange for a much smaller file, and at quality 75–85 a photographic screenshot is usually indistinguishable from the original while running a fifth of the size.

The slider on this page lets you pick a point on that curve per image, so a flat-colour interface icon can stay lossless while a photo-heavy banner goes lossy without switching tools.

Transparency, and where WEBP still falls short

Alpha transparency carries over cleanly: a PNG logo with a see-through background stays exactly as see-through in the WEBP, in both lossless and lossy mode, which is not true of JPG. Browser support has also stopped being a real concern — every current version of Chrome, Firefox, Safari and Edge renders WEBP natively, and has for several years.

The remaining gap sits outside the browser: some older desktop image viewers, a handful of design tools without a plugin, and a few upload forms still expect PNG or JPG specifically. If your WEBP is destined for a website, that gap rarely matters; if it needs to open in an older program, keep the PNG as your working file and export WEBP only for the pages that will serve it.

Converted on your device, not on a server

The PNG is decoded and re-encoded to WEBP locally in your browser, so nothing is uploaded and no copy is stored once you leave the page. That matters for unreleased design work or client screenshots you would rather not hand to a third-party service, and it also means there is no upload queue slowing things down — a folder of a hundred screenshots converts about as fast as your device can process them. Drop in a batch, set the quality once, and download the results individually or as a ZIP.

How to convert PNG to WEBP

Add your files
Drag and drop your PNG files, or click to pick them from your device.
Convert to WEBP
Adjust the settings if you need to, then start the conversion.
Download
Save your WEBP files — individually or all at once.

Frequently asked questions

How much smaller will the WEBP actually be?: For a typical photographic image, lossless WEBP runs 25–35% smaller than the source PNG, and lossy WEBP at quality 80 is often four to six times smaller. Flat graphics with few colours compress less dramatically in both formats, since PNG already handles them efficiently.
Will my transparent PNG stay transparent?: Yes. WEBP supports a full alpha channel in both lossless and lossy mode, so a see-through logo or icon keeps its transparency exactly. That is one of the reasons WEBP replaces PNG rather than JPG, which cannot store transparency at all.
Should I choose lossless or lossy?: Pick lossless for logos, icons and anything with flat colour or text, where a pixel-exact copy matters and the file is already small. Pick lossy for photographs and screenshots, where quality 75–85 looks close to the original at a much smaller size.
Will WEBP open in every program I use?: Every current browser displays it natively, and most modern editors support it directly or with a common plugin. A few older desktop viewers and some upload forms still expect PNG or JPG, so keep the source PNG if the file needs to work outside a browser.
Can I convert a whole folder of screenshots at once?: Yes. Add as many PNGs as you like and each is converted separately at the quality you set, then handed back individually or as a ZIP. Because the conversion runs on your own device, a large batch is limited by your computer’s memory rather than an upload queue, and nothing is sent anywhere in the process.
Are my files uploaded to a server?: No. The whole conversion runs in your browser using your device's own processor. Your files are never sent anywhere.

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Keyboard Shortcuts:

Ctrl+1-4: Quick tool access

Ctrl+H: Home

PNG to WEBP Converter

Convert PNG to WEBP right in your browser. Free, instant, and private — your files are never uploaded.

PNG to WEBP

Drop your PNG files here or click to browse

Drop images here, or tap to select

Supports .pngUp to 50 MB each

100% in-browser. Your files never leave your device.

Drop PNG files above to get started.

Why the PNG you exported is heavier than it needs to be

Lossless or lossy — which WEBP to export

The slider on this page lets you pick a point on that curve per image, so a flat-colour interface icon can stay lossless while a photo-heavy banner goes lossy without switching tools.

Transparency, and where WEBP still falls short

Converted on your device, not on a server

How to convert PNG to WEBP

Add your files
Drag and drop your PNG files, or click to pick them from your device.
Convert to WEBP
Adjust the settings if you need to, then start the conversion.
Download
Save your WEBP files — individually or all at once.

Frequently asked questions

How much smaller will the WEBP actually be?: For a typical photographic image, lossless WEBP runs 25–35% smaller than the source PNG, and lossy WEBP at quality 80 is often four to six times smaller. Flat graphics with few colours compress less dramatically in both formats, since PNG already handles them efficiently.
Will my transparent PNG stay transparent?: Yes. WEBP supports a full alpha channel in both lossless and lossy mode, so a see-through logo or icon keeps its transparency exactly. That is one of the reasons WEBP replaces PNG rather than JPG, which cannot store transparency at all.
Should I choose lossless or lossy?: Pick lossless for logos, icons and anything with flat colour or text, where a pixel-exact copy matters and the file is already small. Pick lossy for photographs and screenshots, where quality 75–85 looks close to the original at a much smaller size.
Will WEBP open in every program I use?: Every current browser displays it natively, and most modern editors support it directly or with a common plugin. A few older desktop viewers and some upload forms still expect PNG or JPG, so keep the source PNG if the file needs to work outside a browser.
Can I convert a whole folder of screenshots at once?: Yes. Add as many PNGs as you like and each is converted separately at the quality you set, then handed back individually or as a ZIP. Because the conversion runs on your own device, a large batch is limited by your computer’s memory rather than an upload queue, and nothing is sent anywhere in the process.
Are my files uploaded to a server?: No. The whole conversion runs in your browser using your device's own processor. Your files are never sent anywhere.