To convert WebP to PNG on iPhone, share the image to Grabio and tap Photo → PNG. Grabio uses Apple’s Convert Image action on your phone, so nothing is uploaded, and the PNG saves to Photos. It is free, with no app to install and no account.

At a glance

Cost
Free, forever
Account
None needed
App Store
No install
Runs on
Your iPhone, via Shortcuts

You saved an image from a website and it turned out to be a WebP. Your iPhone shows it fine, but an editor, a form or a chat app may not take it. A PNG is the safer file to hand over, and the steps below make one in a few taps.

Convert WebP to PNG on iPhone, Free

Convert WebP to PNG on iPhone with Grabio

How do I convert WebP to PNG on iPhone?

At a glance

Cost
Free, forever
Account
None needed
App Store
No install
Runs on
iPhone, via Shortcuts
WEBPGrabioPNG
WEBP in, PNG out, on your iPhone
  1. Add Grabio once. It is a free Apple Shortcut with no sign-up: grabio.adityaarsharma.com/get-shortcut.
  2. Open the WebP in Photos or Files and tap Share.
  3. Scroll the share sheet and tap Grabio.
  4. Pick Photo → PNG from the menu.
  5. Wait for the Done alert from Grabio.
  6. Open Photos. The PNG is the newest item.

If the WebP is on a website, long press it in Safari and save it to Photos or Files first, then start from step 2. If this is your first shortcut from outside the Gallery, iOS may ask you to allow it once in Settings.

Is it private to convert WebP to PNG with Grabio?

Yes. The conversion runs on your phone using Apple’s own image action. Grabio’s server only hands out the shortcut and counts anonymous hits, so it never receives your image. The same on-device route handles most photo jobs, and converting any file format on iPhone explains the few that need a website.

Why does my iPhone save images as WebP?

Your iPhone did not choose it. Websites serve WebP because it loads faster, and saving the picture keeps whatever format the site sent. What WebP is on iPhone covers the format in more detail.

Some places still only accept JPG or PNG, which is why the same image can display everywhere and still be refused by an upload box.

WebP, PNG or JPG: which one should I pick?

Pick PNG when you need transparency or sharp edges, and JPG when you need a small photograph. The table shows the trade.

Question WebP PNG JPG
Accepted by fussy upload forms Often not Usually Almost always
Transparent background Yes Yes No
Compression Small files Lossless, larger files Small, lossy
Best for Web pages Logos, screenshots, text Photographs
Made on the iPhone with Grabio No Yes, Photo → PNG Yes, Photo → JPG

If a form wants a JPG, use convert WebP to JPG on iPhone instead. Going the other way, convert PNG to WebP has the steps.

What changes when WebP becomes PNG?

Expect a bigger file. PNG is lossless and WebP is built to be small, so the same picture usually grows. If an upload box also has a size limit, reduce the photo file size on iPhone after converting.

Quality does not drop, because PNG does not throw detail away. But it cannot add detail either. A blurry WebP becomes a blurry PNG.

An animated WebP is a different case. A PNG is one still image, so do not expect the animation to survive.

Does the PNG keep a transparent background?

PNG supports transparency, so a transparent WebP should stay transparent. That is the main reason to choose PNG over JPG for a logo or cutout.

To be sure, look at the result on a dark background before you send it. If you only need the subject cut out, remove the background from a photo on iPhone.

Convert WebP to PNG on iPhone: FAQ

Can I convert WebP to PNG on iPhone without an app?

Yes. Grabio is an Apple Shortcut, not an App Store app. Share the WebP to it and pick Photo → PNG. There is no account and no sign-up.

Does Grabio upload my WebP anywhere?

No. The Photo → PNG step uses Apple’s Convert Image action on your phone. Grabio’s server only hands out the shortcut and counts anonymous hits, so it never receives your image.

Will the PNG keep a transparent background?

PNG can hold transparency, so it is the right target for a logo or cutout. Look at the result on a dark background before you send it.

Why is my PNG bigger than the WebP?

WebP is built to be small, and PNG is lossless, so the same picture often grows. If a form has a size limit as well, shrink the PNG afterwards.

What happens to an animated WebP?

A PNG is a single still image, so expect a still, not the animation.

Should I use PNG or JPG instead?

Pick PNG for transparency, screenshots and sharp text. Pick JPG when the file is a photograph and a smaller size matters more than transparency.

Related on iPhone: convert WebP to JPG, convert PNG to WebP, convert HEIC to PNG, convert AVIF to PNG, convert PNG to JPG, or Photo Tools.