VibeStack is the offline toolkit built for network engineers, datacenter technicians, and IT professionals who fix networks at 3 AM. 8 essential tools that work without internet, designed to be used with just your thumbs — no copy-paste dependency, no ads, no accounts. ▸ SUBNET BUDDY — Full subnet calculator with 7 tabs: CIDR calculator, binary visualization, VLSM planner, supernetting, overlap checker, IP address analyzer, and a cheat sheet with every CIDR block at a glance. ▸ PORT BUDDY — Instant TCP/UDP port lookup. Search 400+ common ports by number or service name. Filter by protocol. Tap to copy. ▸ LINUX QUICK REF — 120+ essential Linux commands organized by category: networking, firewall, services, logs, SSH, file operations, text search, and more. Searchable with tap-to-copy. ▸ CABLE REF — Visual reference for T568A/B pinouts with color-coded wiring, cable types (straight-through, crossover, rollover), connector specs (RJ45, SFP, QSFP, DB9), fiber types (OM1-OM5, OS1-OS2), and Ethernet standards (Cat5 through Cat8). ▸ NETFLOW — Interactive network troubleshooting decision trees. Walk through 5 common scenarios step-by-step: Can't Reach Host, Slow Connection, Service Down, DNS Not Resolving, and High CPU/Load. Each step includes the exact commands to run. ▸ TIME CALC — Epoch converter with live clock, world timezone grid, duration calculator, and cron expression decoder. Perfect for log analysis. ▸ BYTE CALC — Convert between bytes, KB, MB, GB, TB, and PB. Estimate file transfer times at any speed. Quick reference for common storage sizes. ▸ BASE CONVERT — Convert between decimal, hexadecimal, octal, and binary instantly. Includes a quick reference table of common network values (255, 4094, 65535, etc.). WHY VIBESTACK? • 100% offline — works in server rooms with no signal • Zero permissions — no camera, no location, no contacts • No accounts — no login, no data collection • No ads — ever • Instant — every tool loads in milliseconds • Dark mode — easy on the eyes during late-night maintenance windows Built by network people, for network people.
