When you download an MP3 on iPhone using Safari, the file saves to your Downloads folder inside the Files app. You can access it by opening the Files app, tapping Browse, then selecting Downloads. From there you can move the MP3 to your Music folder, share it, or play it directly.
If you use Chrome on iPhone, the MP3 appears in Chrome's Downloads section, which you can access by tapping the three-dot menu and selecting Downloads.
Most YouTube to MP3 converters are poorly optimized for mobile. They show desktop layouts that are difficult to use on a phone screen, or they redirect iPhone users to app store pages trying to get you to install software. FastAudio is built mobile-first. The converter works in Safari, Chrome, Firefox, and all other iOS browsers without any app installation.
FastAudio is also ad-free. Other converters on iPhone are notorious for triggering App Store popups, redirecting to scam pages, or displaying fake Download buttons that install unwanted profiles. FastAudio has none of this. One input, one convert button, one clean download — that is the entire experience.
FastAudio supports MP3 output up to 320kbps on iPhone, giving you the same high quality available on desktop. All conversions process instantly on our servers — your iPhone never has to do heavy processing, which means the battery stays charged and the conversion is fast regardless of your iPhone model.
FastAudio also converts YouTube Shorts to MP3 on iPhone. Open the YouTube Shorts video, tap Share, then Copy Link. Paste the Shorts URL into FastAudio and convert the same way. The /shorts/ format URL is fully supported.
Open YouTube on your iPhone, tap Share on any video, then tap Copy Link. Open Safari and go to fastaudio.cc, paste the link, select quality, and tap Convert. The MP3 downloads directly to your iPhone.
No. FastAudio works entirely in your iPhone's browser — Safari, Chrome, or Firefox. There is no app to download or install.
The MP3 file saves to your iPhone's Downloads folder, accessible via the Files app.
Yes. FastAudio works on all iOS devices including iPhone, iPad, and iPod Touch in any browser.
Yes. FastAudio is completely free on iPhone and all other devices with no registration, no ads, and no limits.