The classic code diff, now enhanced with rich runtime data. The best way to review AI-generated code in your IDE and your team's work in GitHub PRs.
Supported languages · Linux · macOS · Windows
Review the values that actually flowed through every line, not just the textual diff.
Review the actual values that have flowed through every line during your CI and test executions — right next to the diff.
CodeTracer shows the complete tree of function calls in the recorded execution, with navigation and filtering — instead of a stack trace frozen at one instant.
All plans include both CodeTracer's time-travel debugger and DeepReview runtime-enhanced code review.
For individuals getting started.
For professionals and teams.
For collaborative use at scale.
Only when reviewing replays for C/C++, Rust and other natively compiled languages on Linux. Replays for Python, Ruby and other interpreted languages can be fully explored in the CodeTracer web IDE.
Python and Ruby (Linux & macOS, with full web replay), plus C/C++, Rust and others (Linux desktop replay). New languages are added frequently.
Desktop replay runs on Linux today, with macOS support for the interpreted languages. Windows support is on the roadmap — reach out if it matters to your team.
The execution trace of your program captures every program state over time, so you can replay and inspect the whole run deterministically.
Yes. You can call agents from within CodeTracer or use external agents.
Yes — you can attach an arbitrary number of replays as links. They open directly in the CodeTracer web IDE.
Connect with the team and other developers, report issues, request features, and swap tips for getting the most out of CodeTracer.