URL Checker is a simple Python tool to verify the availability of URLs listed in a given file.

Ensure you have Python and pip installed. Next, install the required dependencies with:

pip install -r requirements.txt

python url_checker.py -f [path_to_file]

Example:

python url_checker.py -f urls.txt

Upon completion, live URLs will be written to live.txt.

This tool employs multiprocessing for URL checks, with the number of processes based on your CPU's core count. If there's an exception during the checking process or if manually interrupted, the tool will attempt to terminate all processes and exit safely.