# Convert RM to WebM

> Convert RM to WebM online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/rm-to-webm

- Runs in an isolated cloud sandbox with FFmpeg: files are deleted automatically, and the job uses cloud credits.
- Engines: FFmpeg (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "webm"` (paid plans).
- More: [Video converter](https://www.converterrr.com/video-converter), [RM converter](https://www.converterrr.com/rm-converter).

## How to convert RM to WebM

1. **Add your RM files.** Drag and drop RM files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose WebM.** WebM is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your WebM.** Download each WebM file, or everything at once as a ZIP.

## Good to know

- RM files are typically used for archived streaming video from the late 1990s, while WebM is best for video on websites and in browsers.
- This conversion runs on FFmpeg in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## RM vs WebM

|  | RM | WebM |
| --- | --- | --- |
| Full name | RealMedia | WebM Video |
| Type | Video | Video |
| Extensions | .rm | .webm |
| MIME type | application/vnd.rn-realmedia | video/webm |
| Best for | archived streaming video from the late 1990s | video on websites and in browsers |
| Properties | legacy format, proprietary | lossy compression, open standard |

**RM:** RealMedia was RealNetworks' streaming format in the early internet era.

**WebM:** WebM is an open, royalty-free video format designed for the web, using VP8/VP9 or AV1 video with Opus audio.

## Related conversions

- [RM to MP4](https://www.converterrr.com/rm-to-mp4) (cloud)
- [MP4 to WebM](https://www.converterrr.com/mp4-to-webm) (in the browser)
- [RM to MP3](https://www.converterrr.com/rm-to-mp3) (cloud)
- [MOV to WebM](https://www.converterrr.com/mov-to-webm) (in the browser)
- [RM to WebP](https://www.converterrr.com/rm-to-webp) (cloud)
- [GIF to WebM](https://www.converterrr.com/gif-to-webm) (in the browser)
- [RM to MOV](https://www.converterrr.com/rm-to-mov) (cloud)
- [MKV to WebM](https://www.converterrr.com/mkv-to-webm) (in the browser)
- [RM to GIF](https://www.converterrr.com/rm-to-gif) (cloud)
- [AVI to WebM](https://www.converterrr.com/avi-to-webm) (in the browser)
- [RM to WAV](https://www.converterrr.com/rm-to-wav) (cloud)
- [WMV to WebM](https://www.converterrr.com/wmv-to-webm) (in the browser)

## Convert RM to other formats

[RM to MP4](https://www.converterrr.com/rm-to-mp4), [RM to MP3](https://www.converterrr.com/rm-to-mp3), [RM to WebP](https://www.converterrr.com/rm-to-webp), [RM to MOV](https://www.converterrr.com/rm-to-mov), [RM to GIF](https://www.converterrr.com/rm-to-gif), [RM to WAV](https://www.converterrr.com/rm-to-wav), [RM to MKV](https://www.converterrr.com/rm-to-mkv), [RM to M4A](https://www.converterrr.com/rm-to-m4a), [RM to AVI](https://www.converterrr.com/rm-to-avi), [RM to FLAC](https://www.converterrr.com/rm-to-flac), [RM to AAC](https://www.converterrr.com/rm-to-aac), [RM to OGG](https://www.converterrr.com/rm-to-ogg), [RM to WMV](https://www.converterrr.com/rm-to-wmv), [RM to Opus](https://www.converterrr.com/rm-to-opus), [RM to FLV](https://www.converterrr.com/rm-to-flv), [RM to M4V](https://www.converterrr.com/rm-to-m4v), [RM to MPEG](https://www.converterrr.com/rm-to-mpeg), [RM to 3GP](https://www.converterrr.com/rm-to-3gp), [RM to WMA](https://www.converterrr.com/rm-to-wma), [RM to MPG](https://www.converterrr.com/rm-to-mpg), [RM to TS](https://www.converterrr.com/rm-to-ts), [RM to AIFF](https://www.converterrr.com/rm-to-aiff), [RM to AMR](https://www.converterrr.com/rm-to-amr), [RM to VOB](https://www.converterrr.com/rm-to-vob)

## Convert other formats to WebM

[MP4 to WebM](https://www.converterrr.com/mp4-to-webm), [MOV to WebM](https://www.converterrr.com/mov-to-webm), [GIF to WebM](https://www.converterrr.com/gif-to-webm), [MKV to WebM](https://www.converterrr.com/mkv-to-webm), [AVI to WebM](https://www.converterrr.com/avi-to-webm), [WMV to WebM](https://www.converterrr.com/wmv-to-webm), [M4V to WebM](https://www.converterrr.com/m4v-to-webm), [3GP to WebM](https://www.converterrr.com/3gp-to-webm), [FLV to WebM](https://www.converterrr.com/flv-to-webm), [MPEG to WebM](https://www.converterrr.com/mpeg-to-webm), [TS to WebM](https://www.converterrr.com/ts-to-webm), [MPG to WebM](https://www.converterrr.com/mpg-to-webm), [MTS to WebM](https://www.converterrr.com/mts-to-webm), [VOB to WebM](https://www.converterrr.com/vob-to-webm), [M2TS to WebM](https://www.converterrr.com/m2ts-to-webm), [APNG to WebM](https://www.converterrr.com/apng-to-webm), [OGV to WebM](https://www.converterrr.com/ogv-to-webm), [MXF to WebM](https://www.converterrr.com/mxf-to-webm), [DivX to WebM](https://www.converterrr.com/divx-to-webm), [3G2 to WebM](https://www.converterrr.com/3g2-to-webm), [RMVB to WebM](https://www.converterrr.com/rmvb-to-webm), [F4V to WebM](https://www.converterrr.com/f4v-to-webm), [ASF to WebM](https://www.converterrr.com/asf-to-webm)

## RM to WebM: frequently asked questions

### How do I convert RM to WebM?

Drop your RM file onto the converter above, make sure WebM is selected, and click Convert. When it's done, download the WebM file — it usually takes a few seconds.

### Is it safe to convert RM to WebM here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the RM to WebM converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting RM to WebM reduce quality?

WebM is a lossy format, but our defaults are tuned to be visually indistinguishable for most files. You can raise the quality under Options.

### Can I convert multiple RM files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.