Flamebearer is a JavaScript command-line CPU trace analyzer designed for both developers and coding agents. It reads Chrome DevTools Performance recordings and Node.js .cpuprofile files. Instead of producing a visual flame graph, the current version summarizes traces as compact structured text. Reports highlight major CPU offenders, hot source lines, long tasks, and other areas worth investigating. Source maps can automatically translate minified frames back to original source locations when mapping data is available. A companion command can profile Node.js scripts directly before analyzing the resulting trace. The project was revived in 2026 with this CLI-focused performance-analysis workflow after an earlier flamegraph-oriented version.

Features

  • Chrome DevTools trace analysis
  • Node.js CPU profile analysis
  • Top CPU offender summaries
  • Hot source line detection
  • Automatic source map support
  • Direct Node script profiling

Project Samples

flamebearer Screenshot 1

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Categories

Data Analytics

License

ISC License

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Additional Project Details

Programming Language

JavaScript

Related Categories

JavaScript Data Analytics Tool

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