Access Log Viewer

Advanced free web server log analysis tool for Apache, Nginx, and IIS. Parse, filter, and analyze your access logs with real-time analytics and export capabilities at no cost.

Powerful Log Analysis Features

Everything you need to analyze and understand your web server logs

Multiple Log Formats

Supports Apache Combined, Apache Common, Nginx, and custom log formats. Automatically detects and parses various web server log structures.

Real-time Filtering

Filter logs by IP address, status codes, URLs, dates, and more. Advanced search with debounced input for smooth performance with large log files.

Analytics Dashboard

View top IPs, browsers, and requested URLs. Get insights into traffic patterns, bot activity, and popular content on your website.

Privacy-First

All processing happens locally in your browser. Your log files never leave your device, ensuring complete privacy and security.

Export Functionality

Export filtered results for further analysis. Save cleaned and filtered log data in standard formats for use with other tools.

High Performance

Optimized for large log files with efficient parsing, memoized filtering, and pagination. Handle millions of log entries smoothly.

How to Use the Access Log Viewer

1

Upload Your Log File

Click "Launch Tool" and upload your access log file (.log, .txt, or .json format). The tool supports files from Apache, Nginx, Splunk JSON, and other web servers.

2

Filter and Analyze

Use the search and filter options to find specific entries. View analytics for top IPs, browsers, and URLs in the sidebar dashboard.

3

Export Results

Export filtered results for further analysis or reporting. All data processing happens locally for maximum privacy and security.

Supported Log Formats

Compatible with most common web server log formats

Apache Log Formats

  • • Apache Combined Log Format
  • • Apache Common Log Format
  • • Apache Combined with Virtual Host
  • • Custom Apache formats

Other Server Formats

  • • Nginx access logs
  • • IIS log formats
  • • JSON log formats (including Splunk JSON)
  • • JSON Lines format
  • • Custom delimited formats
  • • Flexible pattern matching

Ready to Analyze Your Access Logs?

Start analyzing your web server logs instantly. No installation required, completely private, and works directly in your browser.