JSON Log Viewer & Beautifier
Parse, filter, and inspect Newline-Delimited JSON (NDJSON) or standard JSON log arrays locally with severity level highlighting.
Sample Logs:
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What is NDJSON (Newline-Delimited JSON)?
NDJSON is a convenient format for streaming structured data. Each line is a valid JSON value separated by a newline character (\n). It is widely used by modern container environments, microservices, and log aggregators (like Docker, Kubernetes, and Winston) because logs can be appended line-by-line without parsing a massive monolithic array file.
How to use JSON Log Viewer & Beautifier
- Enter or paste the values requested in the input fields.
- Choose any options provided, then run an action button if the tool requires one.
- Review the result and copy or adjust it as needed.
JSON Log Viewer & Beautifier features
- Available tool controls: All, Errors, Warnings.
- Input and option fields: Paste NDJSON or JSON Array:.
Frequently Asked Questions (FAQ)
No. All parsing, text filtering, and rendering operations execute entirely in your browser via client-side JavaScript. Your application logs never leave your machine.
The viewer automatically scans standard keys such as
level, severity, or logLevel. Values matching standard patterns like `error`, `warn`, `warning`, `info`, or `debug` map directly to corresponding color-coded badges and filters.