Tool · MongoDB

MongoDB Log `jq` Query Builder

Paste MongoDB structured log lines (4.4+ JSON) and click fields to assemble a jq filter live. Presets for slow queries, connection churn, and COLLSCAN detection.

Load a MongoDB log Drop mongod.log here, or browse Structured JSON log lines, MongoDB 4.4 and later

Or paste or edit the log here

Nothing you load leaves your browser.

Start from a preset

Slow queries attr.durationMillis over ms Connection churn c == "NETWORK", connections accepted and ended Collection scans attr.planSummary contains COLLSCAN

Compact -c Date filter on t["$date"] From To Preview lines

Add conditions on fields

Pick a condition, or click a frequent value to filter on it. Every change updates the jq and the preview.

Load a log or the sample to list its fields.

Generated jq

Preview