Log File RegExp Filter
Upload local log files and filter them in real-time using regular expressions or keywords in a color-coded terminal console.
How does this tool work?
A fast, fully client-side RegExp log file analyzer.
The tool reads log files locally via the HTML5 FileReader. Users can define RegExp patterns. The JS engine splits text into lines, tests each against the pattern, and outputs hits. Common log levels (Error, Warning, Info, Debug) are automatically highlighted in different colors.
Where are my data processed?
100% Client-Side: Your data never leaves your browser.
All calculations, conversions, encodings, and file processing of this tool are executed exclusively locally via JavaScript on your client device. No inputs, passwords, cryptographic keys, texts, or uploaded files are ever sent to our servers or third parties. Once the page is loaded, the tool remains completely functional even offline.