Free Offline Tracker Tool ZEROBOX Created for HTB, THM and OSCP Lab Management

A user created a free, lightweight browser tool called ZEROBOX to replace Excel spreadsheets for CTF competitions and OSCP exam preparation. The tool tracks rooted boxes from Hack The Box and TryHackMe, auto-parses Nmap scans into open ports and services, includes an exam countdown timer with a 40-point Active Directory tracker, and stores loot and commands locally. The application requires no login, has no telemetry, and saves all data strictly to the user's local machine, with both a live app and GitHub repository available.