Make A Run Easier To Read
See the shape of a trace.
Paste an OpenTelemetry JSON trace export to inspect span names, durations, parent links, and service counts in a readable table. Processing stays in your browser.
Runs in your browser. No uploads. No account.
OpenTelemetry JSON export · processed locally
Paste a trace export or try the example.
| Span | Service | Duration | Parent |
|---|
SIMPLE PRICING
Free during beta.
Use this tool without payment. Optional usage-credit plans are coming soon; no credits are sold or required today.
How it works
1. Export a trace as JSON. 2. Paste the JSON and choose Inspect trace. 3. Review span durations and service names in the local summary.
Good to know
What input does this accept?
Paste a JSON OpenTelemetry trace export containing resourceSpans, or an array of spans with name, startTimeUnixNano, and endTimeUnixNano fields. This is a lightweight viewer, not a full trace backend.
Does it upload my trace?
No. Parsing and display happen locally in this browser tab. The tool does not send, store, or fetch trace data.
Are durations and costs calculated?
Durations are calculated from span start and end timestamps. This tool does not estimate costs or infer token usage.
Is it free?
Yes, during beta. Optional usage-credit plans are coming soon. Payments are not available and no credits are required.