Extract text from JFR files
To convert your JFR file to another format, you need JDK Mission Control or other Developer software.
To convert other file formats to the "Profiling Data" file type, you need software like JDK Mission Control or a similar tool.
The .JFR (Java Flight Recorder) file is a proprietary binary format used by the Oracle JVM to record high-performance profiling data. Unlike standard logs, .JFR files are not human-readable text; they are dense, chunked binary recordings that require specific tooling like JDK Mission Control to visualize. This creates a "black box" problem: developers often need to inspect stack traces, CPU spikes, or memory allocation events without launching a heavy desktop GUI application. Additionally, integrating binary JFR data into modern observability stacks like Elasticsearch, Splunk, or Grafana is impossible without conversion.
To unlock this data, users commonly convert .JFR files to JSON or XML. Converting to JSON allows for programmatic analysis, parsing with scripts (e.g., Python, jq), and ingestion into log aggregators. For simpler reporting or manual inspection, converting to Text or CSV formats provides a quick summary of events without the compatibility constraints of specific JDK versions.
Convert.Guru analyzes your JFR file, detects the exact format, and lets you read the text inside.
Users also converted JPEG, DEMO, TVR and TLR files.
If you want to convert JFR file to JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO, RS or SWIFT, you can use JDK Mission Control or similar software from the "Java Application Profiling" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to JFR, try JDK Mission Control or another comparable tool in the "Java Application Profiling" 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 JFR converter.