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Free RMVB to MP4 Converter Online

Convert RMVB to MP4 online and play old RealMedia downloads on any phone or TV. Upload files up to 20GB and download the converted result in a few clicks.

Drag & Drop your RMVB file here

RMVB files, up to 20GB

Privacy Files stay private.

Privacy Automatically deleted after 24 hours.

LinkPrivacy 20GB upload limit.

4.8/5

Trusted for 1,827,796+ conversions

HOW IT WORKS

Convert RMVB to MP4 in three steps

Three steps, no account, nothing to install.

01

Add your RMVB files

Drag in the .rmvb videos from your old downloads or archive drives.

02

Convert to H.264 and AAC

RealVideo is re-encoded to H.264 at high quality, and RealAudio or AC-3 sound becomes AAC.

03

Download the MP4

Download each MP4 as it finishes, or all of them together as a ZIP.

RMVB

RMVB (RealMedia Variable Bitrate) is RealNetworks' video format, usually with RealVideo 9 or 10 picture and RealAudio sound such as Cook. It was widely used in the 2000s for TV series, anime and films shared online because it kept files small. Most current phones, TVs and video editors do not open it.

MP4

MP4 (MPEG-4 Part 14) is the most widely supported video format. With H.264 video and AAC sound, as made here, it plays on iPhone and Android phones, smart TVs, Windows and Mac, every modern browser, and imports into common video editors.

FILE FORMATS

RMVB and MP4 compared

SOURCE

RMVB

RealMedia Variable Bitrate files come from RealNetworks' RealVideo codecs and were a popular download format for TV series and films in the 2000s, especially in Asia, because they packed a full episode into a small file. RealPlayer has faded, and most phones, browsers and editors can't play RMVB.

TARGET

MP4

MPEG-4 Part 14 is the default container for phone recordings, web video and streaming. MP4 with H.264 video and AAC sound plays on iPhone and Android, in every browser, on smart TVs and in Windows and Mac players without extra codecs. It holds text subtitles and chapters, but not picture-based subtitles.

FeatureRMVBMP4
Developed byRealNetworksMPEG (ISO)
File extension.rmvb.mp4
Usual video codecRealVideo 8 to 10H.264, HEVC, AV1
Usual audio codecRealAudio (Cook), AACAAC
SubtitlesNoText only
Best for2000s downloadsSharing and playback anywhere
Plays on phones and browsersVLC; few othersYes

USE CASES

Use Cases for RMVB to MP4

Practical workflows where RMVB to MP4 conversion is useful.

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Watch old anime and TV series on a smart TV

Series collected as RMVB in the 2000s play on a smart TV from a USB stick once they are MP4.

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Play RMVB on a phone or tablet

Phones and tablets do not play RealVideo. The H.264 MP4 plays in their built-in video apps.

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Recover incomplete downloads

A download that stops early converts up to where the file ends, even when its header claims a much longer running time.

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Clip scenes in a modern editor

Video editors do not import RealVideo. Convert the file first, then cut the scene you want.

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Rescue RealPlayer-era recordings

Lectures, news clips and home videos saved as RMVB with older RealVideo versions become H.264 as well.

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Stream from a media server without transcoding

Media servers have to transcode RealVideo for most devices. As H.264 MP4 the file plays directly.

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Upload to cloud drives and video sites

Cloud drives and video sites preview MP4 in the browser, which they cannot do with RMVB.

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Convert karaoke and music video collections

Karaoke and music video libraries in RMVB become MP4 files for TVs and players that read USB drives.

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Share old clips with family

Send an old family or event video through a chat app as an MP4 that plays on any phone.

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Keep surround sound

RMVB files with AC-3 5.1 sound keep all six channels as AAC 5.1.

SUPPORTED FILES

Which RMVB Files Can I Convert?

RealMedia variable bitrate files are supported.

RealVideo 8, 9 and 10

The codecs used by RMVB downloads.

RealAudio Cook and AAC

Converted to AAC.

2000s TV and film downloads

Episodes and films saved as RMVB.

.rm files renamed .rmvb

Converted the same way.

A batch

Upload a series and download the MP4s as a ZIP.

TROUBLESHOOTING

MP4 Not Playing Right?

These explain most differences from the original file.

01

The picture looks blocky

RMVB files were heavily compressed. The MP4 keeps the original quality and can't add detail.

02

Burned-in subtitles look soft

Subtitles that are part of the picture keep the RMVB's resolution.

03

Picture and sound drift

Some RMVB files have timing problems from the start. Check the original in VLC.

04

Conversion takes a while

RealVideo must be fully decoded and re-encoded.

05

The MP4 is a different size

Re-encoded video at high quality can be larger or smaller than the original, depending on how it was compressed.

06

It says the file can't be read

The file is damaged, protected or not really the format its name says. Copy it again from the source.

COMPARISON

dragdropdo vs. Desktop Video Converters

HandBrake, VLC and FFmpeg give you every setting once installed. dragdropdo is built for turning RMVB into MP4 with sensible settings already chosen, from any device.

What mattersdragdropdoDesktop Video Converters
Nothing to install✓Yes. Runs in any modern browser.~Yes, a download. FFmpeg also needs the command line.
Works on phones and tablets✓Yes. Desktop, Android, iPhone and iPad.~Mostly desktop only.
Batch conversion✓Yes. Add many files and download one ZIP.~HandBrake has a queue; FFmpeg needs scripts.
Share finished files✓Yes. Send a unique link from the result page.~You upload and share the files yourself.
Pricing✓Free with daily limits. $2.99 or $6.99 passes for unlimited use, no monthly plan.~Free (HandBrake, VLC, FFmpeg).
Quality and size settings✓Chosen for you for MP4, with nothing to tune.~Yes. Full control over codecs, bitrate and resolution.

Other tools use different pricing, limits and workflows. This comparison describes dragdropdo's own features without assuming every other tool works the same way.

1.8M+

Files converted

and counting

4.8

Average rating

from our users

~4s

Avg. conversion

per file

0

Files kept

Auto-delete in 24h

WHY DRAGDROPDO

Built to be quick, safe, and free

Convert RMVB to MP4 in your browser, with nothing to install and nothing kept after 24 hours.

Private by default

Files are encrypted in transit and deleted from our servers automatically after 24 hours.

No install required

Convert in any modern browser on Windows, Mac, Linux, Android, iPhone or iPad. No app and no sign-up wall.

Big files and batches

Upload files up to 20GB each, add several at once, and download the results one by one or as a ZIP.

Share & download

Save finished files to your device or pass them on with a share link from the result page.

FAQ

Frequently Asked Questions

Answers to common questions about dragdropdo's RMVB to MP4 converter.