📊 Log Diff Analyzer

Log Diff Analyzer is a simple tool to compare two log files and quickly detect differences.

Paste two logs (before and after), and the tool will highlight:

• New lines
• Removed lines
• Error lines

This is useful for debugging issues after:

• Deployments
• Configuration changes
• Regression tests
• Production incidents

Built with Python + Streamlit.

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🚀 Demo

Try the tool online:

https://log-diff-analyzer.streamlit.app

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❓ Why This Tool Exists

Example use cases

• Compare logs before and after deployment
• Detect new errors in CI logs
• Identify differences between two runs

✨ Features

• Compare two logs instantly
• Detect newly added log lines
• Highlight potential error lines
• Simple and fast UI

🖥 Run Locally

Install dependencies

pip install -r requirements.txt

Run the Streamlit app

streamlit run app.py

Then open your browser:

http://localhost:8501

📁 Project Structure

logcat-error-filter
│
├── app.py
├── requirements.txt
└── README.md

🔍 Search Keywords

This project targets common developer searches such as:

• log diff tool
• compare logs online
• compare two log files
• detect log differences
• debugging log comparison

🔗 Related Tools

You may also be interested in:

• Crash Log Analyzer : https://crash-log-analyzer.streamlit.app
• Stack Trace Root Cause Finder : https://stack-trace-root-cause-finder.streamlit.app
• Logcat Error Filter : https://logcat-error-filter.streamlit.app
• API Error Parser : https://api-error-parser.streamlit.app

These tools help developers debug logs more efficiently.