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Free Online RMVB to MP4 Converter

Convert RMVB video to MP4 online for free.

Drop RMVB files here
or click anywhere in this box to choose files

Up to 50 MB per file. Sign up free to convert files up to 100 MB.

When MP4 is the right output

MP4 (with H.264 video and AAC audio) is the universal video format, plays on every phone, TV, browser, and video-editing app. Convert to MP4 when uploading to YouTube, Instagram, TikTok, or any platform that doesn't specify otherwise. MP4 is the default output for smartphone recording and the expected format for shared / embedded video.

Frequently asked questions

How do I convert RMVB to MP4?

Upload the RMVB file and choose an output format. It is repackaged into the MP4 container, keeping the original resolution and frame rate. No account is required.

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Video conversion guides

RMVB and RM Files Won't Play? How to Convert Old RealMedia Videos Found old .rmvb or .rm files that nothing will play? RealMedia is basically a dead format. Here's how to convert those files to something modern. How to Convert and Compress Video for WhatsApp WhatsApp requires MP4 with H.264 codec and files under 16MB. If your video is in the wrong format or too large, here is how to fix it step by step. M2TS vs MTS vs MP4: Camcorder Video Formats Explained Your camcorder gave you .m2ts files instead of .mp4 and now nothing will play them. Here's what these formats actually are and what to do with them. How to Convert iPhone Video to MP4 (MOV and HEVC to MP4) iPhones record video in MOV with HEVC encoding. Here is how to convert to MP4 for sharing, editing, and uploading, plus how to change your iPhone settings to record MP4 natively.
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