MP4 Converter
Convert documents, images, and more to and from MP4 format online for free.
MP4
Container format for video, audio, and subtitles; the de facto web video standard.
CONVERT FROM MP4
CONVERT TO MP4
Frequently Asked Questions
Are MP4 files safe?+
Most MP4 files are safe, but like any download they can be risky if they come from untrusted sources. Stick to reputable sites and scan suspicious files.
Are MP4 videos?+
Usually, yes—but MP4 is actually a container format. It can hold video, audio, subtitles, and metadata depending on how the file was made.
Can MP4 be 4K?+
Yes. MP4 can contain 4K video as long as the codec and bitrate support it (commonly H.264 or H.265 inside MP4).
Can MP4 files have viruses?+
The MP4 format isn’t a virus, but a malicious download can still harm you (for example, a fake file or a compromised source). Download from trusted places and avoid anything suspicious.
Can MP4 play on iPhone?+
Yes. iPhones generally play MP4 files well, especially when they use common codecs like H.264 for video and AAC for audio.
Does MP4 have video?+
Often it does, but not always. MP4 can contain video, audio, or both depending on the tracks inside the file.
What's MP4 format?+
MP4 (MPEG-4 Part 14) is a multimedia container format used to package video and audio (and sometimes subtitles/metadata) into a single file.
Will MP4 play on Android?+
Yes. Most Android devices can play MP4 files natively, especially with common codecs like H.264/AAC.
Will MP4 play on Mac?+
Yes. macOS can play most MP4 files in QuickTime Player and other apps, as long as the codecs inside are supported.
Will MP4 play on an MP3 player?+
Sometimes. If the device supports video (often marketed as an MP4 player), it may play MP4 files. Basic audio-only MP3 players usually won’t.
Will MP4 play on Windows?+
Yes. Windows can play MP4 via built-in apps and many third-party players, depending on codec support.
Will MP4 play on Windows Media Player?+
Often, but it depends on your Windows version and the codecs inside the MP4. If it won’t play, a player like VLC usually works.