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January 8, 2026
2 min read
Wafer Team

Introducing Wafer's Built-in Perfetto Trace Viewer

Open Chrome trace JSON files directly in your IDE with full Perfetto functionality — timeline, flamegraphs, SQL, and metrics.

PerfettoProfilingChrome TracesPyTorch

Today we're launching Wafer's built-in Perfetto trace viewer!

If you have a Chrome trace JSON (PyTorch profiler, etc.), you can open it directly in your IDE and do the entire Perfetto workflow there — timeline, flamegraphs, SQL, metrics.


What's included

1. Open trace.json files directly in your IDE

No more switching to a browser. Just click on a trace file and view it where you write code.

2. 100% Perfetto functionality

Everything you'd expect from Perfetto — flamegraphs, SQL queries, flow events, counters, and more.

3. Trace History (power user favorite)

Wafer saves your past traces so you can jump between all your previous runs fast. Compare optimizations across iterations without hunting for old files.


Try it out

Install today and let us know what you think!