Trace browser coding agent running on vintage NEC hardware (Light mode)

Powerful coding agent,
right where you work.

A lightweight, fully local, Rust-native coding agent that runs in your browser — bringing everything in one place.

Chrome ExtensionCoding agent in your browser side panel Web AppWeb-based local agentic dev environment

Instant in browser or local•Mac Notch

100+ developers already using Trace

Powerful coding agent,
inside your browser.

Chat with DevTools to debug, use the terminal, edit files, and run subagents — all inside a single browser tab.

Add to Chrome — Free Beta Open Web App — no install

100+ developers already using Trace

Trace in Action

03Architecture/THE ARCHITECTURE

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Why Trace?

Trace is a minimal agent harness. Adapt Trace to your web workflows, not the other way around. Attach directly to live runtimes via CDP, inspect DOM mutations, and stream network telemetry. Debug directly where your code actually executes.

Trace ships with powerful defaults—compiled in native Rust for sub-millisecond hot reload and a 42 MB memory footprint. Ask Trace to build, test, and patch UI components without leaving your active tab.

Four components: interactive agent, in-DOM editor, real terminal, and DevTools observer. See Documentation for real-world setups.

[READ THE DOCUMENTATION]

Why Trace - Unified browser tab agent workspace

Scroll to explore architectureWhy Trace · 1 of 7

“What limits you with coding agents is your own skill at stringing them together, not the capability of the models.”

—Andrej Karpathy

Guided and Supported.

MentorsGoogle

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MentorsMicrosoft

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TalentNewton School

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MentorsGoogle

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MentorsMicrosoft

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TalentNewton School

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MentorsGoogle

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MentorsMicrosoft

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TalentNewton School

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Powerful coding agent, right where you work.

Powerful coding agent, inside your browser.

Trace in Action

Why Trace?

Guided and Supported.

Powerful coding agent,
right where you work.

Powerful coding agent,
inside your browser.