See it in action
Watch TraceFlow catch a real Python crash, trace the variables, and stream an AI fix — all inside VSCode.
How it works
Search TraceFlow in the VSCode marketplace and install in seconds.
Login with GitHub or create a free account. No credit card required.
Click the TraceFlow button in your editor toolbar while your Python file is open.
AI analysis streams in instantly. Read the root cause and apply the fix with one click.
Features
TraceFlow captures the exact moment your Python code crashes — variables, call stack, and all — then streams an AI explanation in seconds.
See how every variable changed line by line before the crash. No more guessing what went wrong — the full story is right there.
Get a complete corrected function from the AI and apply it directly to your file with a single click. No copy-pasting.
TraceFlow walks the entire call stack — from where the crash happened back to the origin — so you know exactly what triggered it.
Whether the crash is inside a function or at the module level, TraceFlow extracts the exact source and gives context-aware analysis.
Your code never leaves your machine in plain text. Only the crash data needed for analysis is sent — nothing else.
Free plan includes 5 analyses per day. No credit card required to get started.