Extract text from Janus recordings (MJR)
To convert MJR recordings to another format, you need Janus WebRTC Server or other Video software.
To convert other file formats to the "WebRTC Recording" file type, you need software like Janus WebRTC Server or a similar tool.
A .MJR file is most commonly a Media Joint Recording created by the Janus WebRTC Server. Unlike standard video files (like MP4 or AVI), an MJR file is a raw structured dump of RTP (Real-time Transport Protocol) packets exactly as they were transmitted during a WebRTC session.
Because of this raw nature, .MJR files cannot be opened directly in standard media players like VLC Media Player or Windows Media Player. They are proprietary packet logs, not media containers. To view them, users must "post-process" the files using the janus-pp-rec utility provided by Meetecho. This tool extracts the raw streams and remuxes them into playable formats without transcoding (preserving original quality). Typically, VP8/VP9 video streams are converted to WebM, while H.264 streams are converted to MP4. Audio streams (usually Opus) are often saved as OPUS or WAV.
A secondary, unrelated use for this extension is as a license key file for JRiver Media Center. These are small text-based files used to activate the software and should not be converted.
Convert.Guru analyzes your MJR file, detects the exact format, and lets you read the text inside.
Users also converted DEMO, WRF and JFR files.
If you want to convert MJR file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Janus WebRTC Server or similar software from the "WebRTC Session Recording" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to MJR, try Janus WebRTC Server or another comparable tool in the "WebRTC Session Recording" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our MJR converter.