Convert RMVB to MP4
RMVB is great for old movie downloads, but MP4 is the better choice for sharing video anywhere — phones, social media, web and TVs. Convert RMVB to MP4 in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert RMVB to MP4
- 1
Tap Choose files and select one or more RMVB files (or drag them in).
- 2
Check that MP4 is selected. Use Advanced options for resolution, size or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your MP4 downloads automatically. Converting several files? Grab them all as a ZIP.
RMVB vs MP4
Both formats are lossy, so the video is re-encoded once. Pick High quality to keep it as close to the original as possible, or Small for the smallest file.
| RMVB | MP4 | |
|---|---|---|
| Full name | RealMedia Variable Bitrate | MPEG-4 Part 14 |
| Type | Video | Video |
| Compression | Lossy | Lossy |
| Developed by | RealNetworks | MPEG |
| Introduced | 2003 | 2001 |
| Plays on iPhone | ✕ No | ✓ Yes |
| Plays on Android | ✕ No | ✓ Yes |
| Plays on Windows | ◐ Partly / with an app | ✓ Yes |
| Plays on Mac | ✕ No | ✓ Yes |
About RMVB and MP4
RMVB: RMVB is the RealMedia video format that was extremely popular for sharing movies in the 2000s.
MP4: MP4 is the universal video format. With H.264 video and AAC audio it plays on every iPhone, Android phone, smart TV, browser, WhatsApp, Instagram and YouTube.
Frequently asked questions
How do I convert RMVB to MP4 on my phone?
Will converting RMVB to MP4 reduce quality?
Is this RMVB to MP4 converter free?
Are my files uploaded to a server?
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