About this utility
How to use Structured Log & JSONL Explorer
Parse JSON Lines and common text logs into searchable event rows with severity and time summaries.
What to provide
Paste JSONL or line-oriented logs. Values remain local and no log endpoint is contacted.
- Paste, type, or drag and drop a supported text file into the input area.
- Choose the options that match your intended result.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
Normalized event rows, severity counts, time range, and malformed-line diagnostics.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Free-form log parsing uses conservative timestamp and severity heuristics; the original line is retained for review.
Try the included example
Select “Load example” at any time to restore this tested sample.
{"time":"2026-07-23T09:00:00Z","level":"info","message":"Started"}
{"time":"2026-07-23T09:00:02Z","level":"error","message":"Connection failed","code":"E_CONN"}