Can I convert files on iPhone without installing an app?

Yes. SwiftConvert runs directly in Safari (or Chrome) on iPhone. There's no App Store install and no signup — open the page and pick files from your Camera Roll or Files app.

Does the iPhone converter work offline?

Once the converter page has loaded, you can enable Airplane Mode and the conversion still works. All processing happens on your device using WebAssembly.

Where do converted files go on iPhone?

Safari saves downloads to the Files app under the Downloads folder by default. You can then share into Photos, Mail, or any other app.

Does it drain the battery?

Conversion uses the CPU briefly per file — similar to opening a large photo in Photos. It stops the moment the conversion finishes.

Works in Airplane Mode

Convert files on iPhone — offline, no app.

SwiftConvert runs directly in Safari on iPhone. Convert HEIC to JPG, images to PDF, PDFs to Word — with no App Store install, no signup, and no upload. Once the page loads you can flip on Airplane Mode and it keeps working.

Convert HEIC → JPG All converters

No app install

Add-to-Home-Screen if you like, but it works fine as a plain Safari tab. Nothing to update, nothing to review permissions on.

Offline after first load

Once loaded, disconnect. Convert HEIC photos on the plane and share them the moment you land.

Private by default

Your photos and documents never leave the iPhone. No iCloud sync, no server logs, no metadata leak.

Saves to Files app

Downloads land in Files → Downloads. From there, share into Photos, Mail, or WhatsApp.

Convert on iPhone in Safari — step by step

Open swiftconvert.in in Safari on your iPhone.
Tap the source → target pair for the file type you have.
Optional: once the page finishes loading, swipe down from the top-right and enable Airplane Mode. The converter keeps working.
Tap Choose files → pick from your Photo Library, the Files app, or take a photo on the spot.
Wait a couple of seconds — a progress bar shows the batch status.
Tap Download. Safari saves the file to Files → Downloads. From there, tap Share to send it to Photos, Mail, or another app.

Prefer more detail? Read the tutorial: Convert HEIC to JPG on iPhone without uploading.

Best iPhone converters

The pairs iPhone users open most — every one runs offline once loaded.