Parse Server Logs with Regex

Write regex patterns to extract timestamps, IP addresses, error codes, and structured data from log files.

Ebda login meħtieġ

Regular expression

//g

Flags:

Examples:

Test text

Matches

The quick brown fox jumps over the lazy dog. Pack my box with five dozen liquor jugs.Enter a pattern above to see matches highlighted here.

Log Parsing tips

📜

Paste a sample from your log file into the test text area, then build your pattern against real data. Logs have many edge cases.

🔍

Use capture groups () to extract specific parts: IP, timestamp, status code. Each group is shown separately in the match details panel.

💡

Named groups (?<ip>\d+\.\d+\.\d+\.\d+) make your regex self-documenting and easier to use in Python's re.findall() or JavaScript's match().

⚡

Enable the "m" (multiline) flag so ^ and $ match the start and end of each log line, not just the entire input.

Daħħal

Enter your data into the tool above. Everything stays local to your browser.

Proċess

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Niżżel

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Kompletament b'xejn — l-ebda spejjeż moħbija, qatt

✓Ebda kont, email, jew login meħtieġa

✓Fajls qatt ma jħallu t-tagħmir tiegħek

✓Ebda limitu ta' daqs tal-fajl

✓Ebda filigrani fuq kwalunkwe output

Test Regex for Form Validation

Write and test regular expressions for validating

Extract and Replace Text with Regex

Use regex to find patterns, extract data, or prepa

Test URL Routing Patterns

Write and test regex patterns for URL routing rule

Extract Data with Regex

Build and test patterns to extract structured data