flameshow

flameshow [options] [file]

flameshow is a Python-based terminal flamegraph viewer. It allows users to visualize profiling data directly in the terminal, making it easy to analyze performance data without leaving the command line.
The tool supports various profile formats and provides an interactive TUI for exploring flamegraphs, identifying hotspots, and understanding application performance.

-h, --help

Display help and exit

Display version and exit

Color theme: dark, light

↑/↓

Navigate through frames

Expand/collapse frame

Quit

Show help

Requires Python environment. May not support all profiler output formats. Performance depends on terminal capabilities. Large profiles may impact rendering speed.

flameshow was developed as an alternative to browser-based flamegraph viewers, focusing on terminal-native display and quick profile inspection.

[flamelens](https://github.com/YS-L/flamelens), [flamegraph](https://github.com/brendangregg/FlameGraph), [py-spy](https://github.com/benfred/py-spy)