Browser extension for LangSmith

See the whole trace.
Not just the logs.

Turn dense LangSmith runs into a focused, step-by-step view built for understanding agent behavior.

Trace Viewer displaying a LangSmith trace as a navigable sequence of steps
Built for long traces

From noisy execution to a clear story.

Move through every message, tool call, thought, and error without losing your place—or your patience.

01 —

Scan every step

A compact timeline and searchable step list make long-running agent traces easy to navigate.

02 —

Focus on what matters

Filter messages, tools, thinking, and errors to quickly isolate the part of a run you need.

03 —

Keep data private

Trace data stays between your browser and the LangSmith instance you configure. No developer servers.

A calmer way to understand complex agent runs.

How your data is handled