elems.ai/lens
Lens · json streams
One JSON per line, as one table.
The union of the records’ keys becomes the columns, nested values are shown compactly in place, and a timestamp or level field is promoted to the front. A line that will not parse keeps its position and gets flagged rather than dropped.
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Keys become columns
Every key any record uses gets a column, ordered by how many records actually have it.
Log-shaped
A timestamp or level field is moved to the front and severities are tinted.
Bad lines survive
A line that is not valid JSON is counted and named by line number, not quietly skipped.