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.
Try the tool online:
https://log-diff-analyzer.streamlit.app
- Compare logs before and after deployment
- Detect new errors in CI logs
- Identify differences between two runs
- Compare two logs instantly
- Detect newly added log lines
- Highlight potential error lines
- Simple and fast UI
Install dependencies
pip install -r requirements.txt
Run the Streamlit app
streamlit run app.py
Then open your browser:
http://localhost:8501
logcat-error-filter
│
├── app.py
├── requirements.txt
└── README.md
This project targets common developer searches such as:
- log diff tool
- compare logs online
- compare two log files
- detect log differences
- debugging log comparison
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.