DEBUGTOOLS

Debug faster with tools that respect your data.

Open-source toolkit for logs, stack traces, crashes, and API failures. Paste your debugging input, get clear root cause analysis and fix suggestions - all in your browser, no account needed.

Stack tracesLogsAPI errorsCrash reportsHAR filesBuild failures
json-tools - live
{
  "service": "payments-api",
  "status": 500,
  "error": {
    "type": "TypeError",
    "message": "Cannot read properties of undefined (reading 'map')",
    "stack": "at List.render (app/List.tsx:42:11)"
  },
  "trace_id": "7f3a9c2e"
}

Local-first by default.

Your pasted logs, tokens, stack traces, and crash reports stay in your browser unless you explicitly choose AI analysis. Nothing is sent to a server you did not pick.

Open-source and self-hostable

Browser toolsRun locallyBring your own AI keyNo forced accountTransparent analyzersNext.js + TypeScript

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