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 "Raw WebRTC Stream" file type, you need software like Janus WebRTC Server or a similar tool.
The .MJR file format primarily functions as a Media Joint Recording generated by the Meetecho Janus WebRTC Server. It acts as a raw server-side dump of audio and video streams from WebRTC sessions, heavily used in the backend infrastructure of platforms like Jitsi or Google Meet. Secondarily, the .MJR extension is used for proprietary license registration files by JRiver Media Center. The major disadvantage of the Janus .MJR recording format is its raw, completely unplayable state. Standard media players and web browsers cannot natively open it because it is not a standard media container and lacks standard playback headers. Instead, it is a structured dump of RTP network packets.
To make the media usable, system administrators must post-process the file using the specific command-line tool janus-pp-rec. You must convert these raw streams to standard containers like WEBM, MP4, OPUS, or WAV depending on the underlying payload (such as VP8, VP9, or H264 for video; Opus or G711 for audio). Standard online video converters consistently fail with .MJR files because they expect consumer formats and lack the specialized Janus demuxing libraries necessary to parse the proprietary packet structure. Just drag and drop your .MJR file into convert.guru to identify the format, view internal headers, and convert it if our analysis detects a supported underlying embedded format.
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.