The universal video container — the format almost everything expects, and the one Filemorph produces most video tools' output as.
MP4 (formally MPEG-4 Part 14) is the video container that comes closest to a universal standard — every phone, computer, game console, smart TV, and web platform built in the last decade or more plays it without a second thought. Like MOV, which it is technically descended from, an MP4 file wraps compressed video and audio tracks together with timing data, but MP4's status as an open, widely licensed standard is what pushed it past Apple's own QuickTime format for cross-platform use, streaming, and web video. That universality is also why MP4 is Filemorph's default output for nearly every video operation that changes a file's container or format — transcoding, compressing, trimming, adding a watermark — regardless of whether the source was a MOV recorded on iPhone or a video downloaded from somewhere else. A video someone needs to send to an Android phone, upload to nearly any platform, or simply store in the most broadly compatible format is, in almost every case, better off as MP4.
Every iPhone, iPad, Mac, Android phone, Windows PC, smart TV, and game console released in recent years plays MP4 natively. It is also the standard container behind most streaming platforms and social media uploads, making it the safest single format to standardize on.
MP4 already plays almost everywhere, so converting a video into MP4 is less about fixing a compatibility problem and more about arriving at the safest default before sharing, uploading, or archiving it. Filemorph handles the transcode on-device rather than through a browser-based video converter.
Filemorph can convert MP4 to MOV on-device — Apple's native container, useful mainly when a workflow specifically expects QuickTime rather than MP4.
Filemorph converts .mp4 files entirely on-device on iPhone, iPad and Mac — no upload, no account, and it works in Airplane Mode.
Relevant operations in Filemorph:
MP4 is an open, widely licensed standard that essentially every phone, computer, smart TV, game console, and streaming platform built in the last decade supports natively, unlike more platform-specific containers such as Apple's MOV.
At a moderate compression preset, usually not for typical viewing — Filemorph's compression presets balance file size against visible quality, and the difference is generally only apparent at the most aggressive settings or on a very large screen.
Yes. Every MP4 operation in Filemorph — compress, trim, extract audio, and the rest — runs entirely on the iPhone or iPad, with a Live Activity tracking progress on the Lock Screen, and none of it requires an internet connection.