eprofiler-tui - A terminal based flamegraph viewer for OTLP and gRPC profiling data.
Issue #146
20th October 2026
A warm welcome to the 146th issue of Terminal Trove Weekly! we publish once a week on Tuesdays.
In this issue, we explore the next terminal tool of the week which is eprofiler-tui, alongside more new terminal tools listed in the trove.
Do you have or know of a terminal tool?
A terminal based flamegraph viewer for OTLP and gRPC profiling data.
eprofiler-tui is a terminal-based flamegraph viewer for live OpenTelemetry (OTEL) and gRPC profiling data.
It receives profiling data via an OTLP gRPC endpoint and it displays a flamegraph-style of sampled call stacks.
When displaying traces, it has three sections for viewing profiling information alongside the standard flamegraphs, flamescopes that help show time-based variance in flamegraph data, and executables that assist with symbolication from binaries with debug information.
The types of code eprofiler-tui can trace traced range from native code, kernel code and JVM code with samples grouped by its thread or process.
eprofiler-tui supports vim style key-bindings which allows for ease of navigate of the flamegraph stack information and it can zoom into frames and search for threads.
This tool can be used by developers who specialize in DevOps, SRE, backend and infrastructure settings that need to investigate application services using OpenTelemetry that require tracing and that need inspection for time critical, performance related work or regressions.
Roger Coll (@rogercoll on GitHub) made eprofiler-tui using Ratatui and is Terminal Tool of the Week! ⭐️
A special thanks to our sponsors who help keep Terminal Trove free.
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