Grabio Blog
Updates, tutorials, and release notes for the iPhone utility Shortcut.
Convert YouTube to MP3 on iPhone Without an App
The honest version of converting YouTube audio to MP3 on an iPhone, including what iOS already does for free and where it stops.
Convert WEBP to JPG on iPhone Without an App
Why iPhones show WEBP files fine but some sites reject them, and three free ways to get a JPG without installing anything.
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 PNG to WebP on iPhone Without an App
There is no on-device WebP converter on iPhone, and for most people WebP is the wrong target anyway. Here is the honest route and the better alternative.
How to Convert MP4 to WAV on iPhone Without an App
Pull the audio out of an MP4 and get a WAV file, with an honest note on why WAV will not recover quality your video never had.
Convert MP4 to MP3 on iPhone Without an App
iPhone has no MP3 encoder built in. Here is what it can do on device, when M4A is the better answer, and how to get a real MP3 when you need one.
How to Convert MOV to MP4 on iPhone
Why your iPhone videos arrive as MOV files that some apps refuse, and how to turn them into MP4 without an App Store download.
How to Convert MKV to MP4 on iPhone Without an App
An iPhone will not open an MKV file. Here is why, what to do about it, and how to get a playable MP4 without installing anything from the App Store.
How to Convert HTML to JPG on iPhone Without an App
Turn a web page or an HTML file into a JPG image on iPhone using the built in screenshot tools, then convert the result without uploading anything.
How to Convert AVI to MP4 on iPhone Without an App
AVI files will not play on an iPhone. Here is how to turn old camcorder and archive footage into MP4 you can watch, share and keep in Photos.
Compress MOV File on iPhone
How to shrink a MOV video on iPhone, what iOS will and will not do for you, and which setting to pick for each destination.