Best Video Format for Online Sharing in 2025

When you export a trimmed video, you're faced with a choice: which format should you save it in? The answer depends on where you're sharing it and what devices your audience uses. Here's what you need to know in 2025.

The Main Contenders

The three formats you'll encounter most often are MP4 (H.264 or H.265 codec), WebM (VP8 or VP9 codec), and MOV (Apple's QuickTime container). REEL CUTTER exports in MP4 and WebM.

MP4 — The Universal Choice

MP4 with H.264 encoding is the most widely supported video format on earth. It plays on Windows, Mac, iPhone, Android, every major browser, YouTube, Instagram, TikTok, LinkedIn, and virtually every other platform. If you need guaranteed compatibility and only want to choose one format, choose MP4.

• Excellent compatibility across all devices and platforms.
• Slightly larger file size than WebM for equivalent quality.
• H.264 encoding is well-optimised in most devices' hardware decoders, meaning smooth playback even on older devices.

WebM — The Efficient Web Format

WebM with VP9 encoding typically produces smaller file sizes than MP4 at the same visual quality. It was designed specifically for web streaming and is supported by all modern browsers. YouTube uses VP9 for its high-quality streams.

• Smaller files than MP4 for equivalent quality — great for sharing links or embedding.
• Not supported natively on older iPhones (pre-iOS 16) or some smart TVs.
• Ideal if your audience is primarily on desktop browsers or Android.

MOV — Apple's Format

MOV is Apple's native format and works great on Macs and iPhones. It's a container format that usually wraps H.264 or H.265 video. On non-Apple devices it works but can be less reliable. REEL CUTTER accepts MOV files as input but exports to MP4 or WebM.

Platform Recommendations

• YouTube — MP4 (H.264) is recommended. YouTube will re-encode your upload anyway.
• Instagram / TikTok — MP4 in H.264. Both platforms accept it reliably.
• Twitter / X — MP4 up to 512MB.
• Email attachment — MP4 for broadest compatibility.
• Website embed — WebM with MP4 fallback for best performance.
• Personal archive — MP4 in the highest quality you can afford to store.

Which Should You Choose in REEL CUTTER?

Choose WebM if you want the fastest export and will be sharing via a browser or modern device. Choose MP4 if you need the widest possible compatibility or are uploading to a social media platform.