Nikola Arsić
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CostFreeSign-upNoneRunsIn your browser

Access log viewer

Paste a raw Apache, Nginx, IIS, ISA or proxy access log and read what actually hit your server - crawler behaviour, status-code patterns, and the requests nobody is looking at.

What it does

5 capabilities

Format detection
Apache Combined, Apache Common, Combined with virtual host, Nginx, IIS and custom patterns - detected and parsed without you declaring which you have.
Filtering
Narrow by IP, status code, URL or date with debounced search, so a large file stays responsive while you are still deciding what you are looking for.
Analytics
Top IPs, user agents and requested URLs, surfaced as counts - which is usually how you find the bot nobody knew was crawling you.
Proxy and ISA logs
Proxy access logs - including Microsoft ISA and Forefront TMG - parse alongside web server logs, so you can analyse what came through the proxy in the same place.
Export
Take the filtered set out as a clean file for whatever you were going to do with it next.

How it runs

  1. Step 1

    Load a .log, .txt or .json access log from your machine. It is read locally and never sent anywhere.

  2. Step 2

    Filter and search until you have the slice you care about, then read the analytics in the sidebar.

  3. Step 3

    Export the filtered rows, or close the tab and leave nothing behind.

Accepted input

Apache

  • Combined Log Format
  • Common Log Format
  • Combined with virtual host
  • Custom Apache patterns

Other servers and proxies

  • Nginx access logs
  • IIS log formats
  • Microsoft ISA / Forefront TMG proxy logs
  • Squid and generic proxy logs
  • JSON logs, including Splunk JSON
  • JSON Lines
  • Custom delimited formats

FAQ

Does this work as an Apache log viewer?
Yes. Apache Combined Log Format, Common Log Format, and Combined with a virtual host are all auto-detected line by line - paste a raw Apache log and it parses without you declaring the format.
Can I use it as an Nginx log viewer?
Yes, Nginx access logs are detected and parsed the same way as Apache logs, in the same file if you have mixed sources - no separate mode to switch.
Does it read ISA Server or Forefront TMG proxy logs?
Yes. Microsoft ISA and Forefront TMG proxy logs parse alongside web server logs, so you can analyze what came through the proxy in the same view as your Apache or Nginx traffic.
Is this a log viewer I can use online without installing anything?
Yes. It runs entirely in your browser - no install, no account, no upload. Paste or load a file and the parsing happens locally.
What can an access log analysis with this tool actually show me?
Top IPs, user agents, and requested URLs by count - which is usually how you find the crawler or bot nobody knew was hitting the site - plus status-code patterns across whatever slice you filter to.

Nothing is uploaded. Nothing is stored.

It runs entirely in your browser, with no account and no server round-trip. Close the tab and it is gone.