Log Analyzer

Parse, filter, and search log files instantly — right in your browser. No data leaves your machine.

100% Client-side Instant Parsing Multi-level Filter
Input Log Data

Click to upload or drag & drop

.log, .txt, .out — up to 50 MB

Load Sample
0
Total Lines
0
Errors
0
Warnings
0
Info
0
Debug
Log Output

Upload a log file or paste log text to get started

About This Tool
Privacy First

All processing happens entirely in your browser. Your log data never leaves your machine or touches any server.

Supported Formats

Log4j, Logback, Nginx, Apache, Syslog, JSON logs, and any standard timestamp + level + message format.

Supported Levels

ERROR, WARN / WARNING, INFO, DEBUG, TRACE — with color-coded highlighting for quick scanning.