Files & Archives
Zip, unzip, format conversion and where files actually live on iPhone.
How to Unzip a File on iPhone
iPhone has unzipped files natively for years and hides it in a long press. Here is the exact gesture, plus the four cases where it fails.
How to Convert TXT to CSV on iPhone Without an App
Half the time this is a rename that takes ten seconds. The other half it is a delimiter problem. Here is how to tell which one you have.
How to Convert RAR to ZIP on iPhone
The honest position on RAR files on an iPhone, what the Files app can and cannot open, and the routes that genuinely work.
How to Convert Any File Format on iPhone
For formats Grabio can’t convert on-device, it hands off to VERT, a free site supporting 250+ formats, right from the iPhone share sheet.
How to Generate a QR Code on iPhone (Free, No App)
Grabio uses Apple’s native Shortcuts QR code action to turn any link or text into a QR code right on your iPhone. No account, no logo watermark, no upload.
How to Scan a QR Code Image on iPhone Without an App
Scan a saved QR code image on iPhone with Grabio’s free Shortcut, which hands it off to QRLynx to decode the link or text.