Convert APNG to RMVB Online

Convert APNG to RMVB Online

An animated PNG stores every frame losslessly, so even a short loop runs large and won't play in a video player without conversion. This tool turns your .apng into an RMVB (RealMedia Variable Bitrate) clip — a much smaller, playable file. Be candid with yourself first, though: RMVB is a legacy RealNetworks format from the early 2000s, mostly seen today in older East- and Southeast-Asian media libraries. If you just want a small animation that plays everywhere, convert APNG to MP4 instead — pick RMVB only when something on your end specifically needs RealMedia. Either way, APNG transparency is flattened onto a solid Background Color, since RMVB has no alpha channel.

How to Convert APNG to RMVB

1. Upload Your APNG File: Drag and drop your .apng onto the page or click "Upload" to pick it. You can queue several files and convert them with the same settings.
2. Choose a Merge Strategy and Image Duration: With one APNG this rarely matters, but if you add several files set Merge strategy to "Merge images" for a single RMVB or "Video per image" for one file each. Image Duration controls how long each still source is held (default is 5 seconds per frame); an already-animated APNG keeps its own frame timing.
3. Set Quality Preset, Resolution, and Background Color: Leave Quality Preset on "Very High (Recommended)" or step down to shrink the file. Keep the original Video resolution or choose a fixed/preset size. Because RMVB cannot store transparency, set Background Color (Black by default) to match where the clip will sit.
4. Convert and Download: Click "Convert" and download your RMVB. No sign-up, no watermark. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours.

APNG vs RMVB — What Changes in the Conversion

Frequently Asked Questions

Should I really convert APNG to RMVB, or use MP4 instead?

For almost everyone, MP4 is the better target — it is smaller, autoplays on phones and browsers, and is accepted by social platforms and video editors that reject both APNG and RMVB. Choose RMVB only when a specific RealPlayer-based device, set-top box, or an existing RealMedia library requires it. If you are not sure, convert APNG to MP4; you can always make an RMVB later if something demands it.

What plays an RMVB file after conversion?

RMVB has no native browser or built-in OS player support. It opens reliably in VLC (cross-platform), RealPlayer 10/SP and later, MPlayer, and most FFmpeg-based players such as Media Player Classic with the right filters. Modern phones and smart TVs generally will not play it without a third-party app.

What happens to my APNG's transparent background?

RMVB cannot store an alpha channel, so any transparency is flattened onto a single solid color during conversion. By default that is Black; set Background Color to White — or any color — so the filled-in background matches the page, app, or player where the clip will appear. There is no way to keep true transparency in RMVB.

Will the RMVB loop the way my APNG did?

No. APNG carries a loop flag inside the file; RMVB does not. The clip plays once unless the player you use is set to repeat it. If looping matters, that is another reason MP4 (with a player or <video loop>) or staying on APNG usually serves better than RMVB.

How much smaller is the RMVB than the source APNG?

It varies with content, but the drop is usually large because lossless APNG stores complete frame data while RealVideo only encodes what changes between frames. In our testing, a 1080p 3-second APNG loop of about 9 MB converted to a roughly 400-700 KB RMVB at the default Quality Preset; lowering the resolution or quality shrinks it further.