How do I analyze a log file?

Drop the file or paste its lines into the analyzer, then filter and search to find errors, patterns, and frequent messages.

Are my logs uploaded?

No. Analysis runs entirely in your browser, so sensitive log data never leaves your machine.

Can it handle large log files?

Yes. It's built to process sizeable logs locally, with filtering to focus on the lines that matter.

All tools/Data Inspector

Real-time Local Log Analyzer

Runs locally

Analyze log files in real time in your browser — filter, search, and surface patterns, error spikes, and frequent messages without sending sensitive logs to any server. Drop a log file and explore it instantly.

How to analyze a log file

1Drop a log file or paste log lines into the analyzer.
2Filter and search by level, keyword, or pattern.
3Review counts, frequent messages, and error trends.

Make sense of noisy logs

Raw logs are overwhelming — thousands of lines where only a handful matter. Filtering by level and keyword, and grouping repeated messages, lets you quickly find the errors and patterns that explain an incident, all without uploading potentially sensitive production data anywhere.

Frequently asked questions

How do I analyze a log file?: Drop the file or paste its lines into the analyzer, then filter and search to find errors, patterns, and frequent messages.
Are my logs uploaded?: No. Analysis runs entirely in your browser, so sensitive log data never leaves your machine.
Can it handle large log files?: Yes. It's built to process sizeable logs locally, with filtering to focus on the lines that matter.