Click the "Select File" button above, and choose your HRL file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert HRL to another file type
To convert HRL Logs to another format, you need Erlang/OTP or other Developer software.
Convert a file to HRL
To convert other file formats to the "Erlang Header & Log" file type, you need software like Erlang/OTP or a similar tool.
About HRL files
The .HRL file extension represents several completely different technical formats. The most common use is an Erlang Header File used in the Erlang/OTP programming language. Developed by Ericsson, these plain text files contain definitions, macros, and record declarations included in Erlang source files. A secondary use is a compressed Erlang trace log file, often stored as a GZIP archive. Additionally, .HRL files act as Hyper-V Replica log files in Microsoft Windows Server, storing virtual machine replication changes. Finally, they can be Heart Rate Log files used by fitness platforms like Relive. Users typically need to convert these files because they are highly specialized. Erlang header files are strictly developer tools, useless to non-programmers. Hyper-V Replica logs are proprietary, binary system files locked to Microsoft's ecosystem, unreadable by standard text editors. Heart Rate Logs often require proprietary players or subscriptions to view fitness data. For Erlang headers, the best conversion target is TXT or MD for documentation sharing. Heart Rate Logs are best converted to CSV or TCX to import into standard fitness trackers like Strava or Garmin Connect. Hyper-V logs are system-managed and cannot be safely converted without breaking virtual machine replication. Because the .HRL extension maps to multiple, unrelated proprietary and system formats, standard online converters usually fail to process it. A generic tool cannot differentiate between an Erlang source code file, a compressed GZIP trace, and a binary Hyper-V log. Just drag and drop your file onto convert.guru to identify the exact format, view its internal text, and convert it when possible. If our analysis detects a supported underlying format like GZIP or plain text, viewing or extracting the content is still achievable.
Convert.Guru analyzes your HRL file, detects the exact format, and lets you read the text inside.
If you want to convert HRL file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Erlang/OTP or similar software from the "Source Code & System Logs" 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 HRL, try Erlang/OTP or another comparable tool in the "Source Code & System Logs" category.
The HRL Converter Story
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 HRL converter.