Video Formats Explained — MP4, MKV, AVI, MOV, WebM Compared
Confused by video formats? Learn the differences between MP4, MKV, AVI, MOV, and WebM. Find out which format is best for your needs.
With so many video formats available, choosing the right one can be confusing. Each format has unique strengths and ideal use cases. Here's your comprehensive guide.
MP4 — The Universal Standard
MP4 (MPEG-4 Part 14) is the most widely supported video format. It works on virtually every device, browser, and platform. Use MP4 when:
Sharing videos online — maximum compatibility
Uploading to social media — YouTube, Instagram, TikTok all prefer MP4
General purpose — when you're not sure which format to use
MKV — The Feature-Rich Container
MKV (Matroska) can hold unlimited tracks of video, audio, subtitles, and metadata. Use MKV when:
Storing movies — multiple audio tracks and subtitles
Preserving quality — supports any codec
Archiving — maximum flexibility
AVI — The Legacy Format
AVI (Audio Video Interleave) was created by Microsoft in 1992. It's still used but largely superseded by MP4 and MKV. Older devices and software may still require AVI format.
MOV — Apple's Choice
MOV is Apple's QuickTime format. It offers excellent quality and is the default for iPhone video recordings. Best for:
Video editing — Final Cut Pro, iMovie
Apple ecosystem — Mac, iPhone, iPad
Professional production — high quality output
WebM — Web Optimized
WebM is Google's open-source format designed for the web. It offers excellent compression and is natively supported by all modern browsers. Ideal for:
Web embedding — HTML5 video
Streaming — efficient bandwidth usage
Open source projects — royalty-free