Choosing the right video format can be confusing. MP4, WebM, and MOV are the three formats you'll encounter most often, and each has distinct strengths. Here's a practical guide to help you pick the right one for every situation.
MP4 — The Universal Standard
Container: MPEG-4 Part 14
Typical codecs: H.264 (video), AAC (audio)
Best for: Almost everything
MP4 is the most widely supported video format in existence. It plays on every smartphone, tablet, computer, smart TV, and web browser. It's the default format for YouTube uploads, social media, and most video streaming platforms. When in doubt, use MP4.
- Universal compatibility across all devices and platforms
- Excellent compression with H.264 codec
- Supports subtitles, chapters, and metadata
- Ideal for sharing, streaming, and archiving
WebM — Built for the Web
Container: WebM (based on Matroska)
Typical codecs: VP9 or AV1 (video), Opus (audio)
Best for: Web embedding and HTML5 video
WebM was developed by Google specifically for web use. It offers excellent compression — often better than MP4 at the same quality — and is royalty-free. All modern browsers support WebM, making it ideal for websites that need fast-loading video.
- Smaller file sizes than MP4 at equivalent quality (with VP9/AV1)
- Royalty-free — no licensing costs for web publishers
- Excellent browser support (Chrome, Firefox, Edge, Safari 16+)
- Limited support on older devices and some media players
MOV — Apple's Professional Format
Container: QuickTime File Format
Typical codecs: H.264 or ProRes (video), AAC (audio)
Best for: Apple ecosystem and professional video editing
MOV is Apple's native video container. It supports high-quality codecs like ProRes that are standard in professional video production. If you're editing in Final Cut Pro or working within the Apple ecosystem, MOV is a natural choice.
- Native support on macOS and iOS
- Supports professional codecs like ProRes
- Larger file sizes than MP4 for the same content
- Limited compatibility on Windows and Android without extra software
Quick Decision Guide
| Scenario | Best Format |
|---|---|
| Sharing on social media | MP4 |
| Embedding on a website | WebM (with MP4 fallback) |
| Sending via email or messaging | MP4 |
| Professional video editing | MOV (ProRes) |
| YouTube / Vimeo upload | MP4 |
| Archiving footage | MP4 or MOV |
| Web performance optimization | WebM (AV1) |
| Cross-platform compatibility | MP4 |
Converting Between Formats
Need to convert? Here are the most common scenarios:
- MOV to MP4: Use a Convert to MP4 tool to make your Apple videos universally compatible. This is the most common conversion people need.
- MP4 to WebM: Use a Video to WebM converter when you need smaller files for web embedding.
- Any format to MP4: When in doubt, converting to MP4 is almost always the right move for maximum compatibility.
All conversions can be done instantly in your browser with Peregrine Vid — no sign-up, no upload, completely free.