Tools
Military finance
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Maxed & Matched TSP Calculator
Hit the max. Keep the match.
Your exact myPay TSP percentages, straight from your LES. Reach the IRS limit in your last paycheck without losing a dollar of BRS match.
- Military
- Finance
- Runs offline
- Private
Networking practice: Net Drills
Four drills for the Cisco NetAcad Network Technician path and the CyberPatriot Cisco challenge. Unofficial practice; not affiliated with either. Progress stays in your browser.
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Subnet Sprint
Calculate it. Then faster.
Work out the network, broadcast, and usable host range for any IPv4 address, then do it faster. Includes VLSM planning and IPv6 drills.
- Networking
- CyberPatriot
- Offline
- Private
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IOS CLI Lab
Configure it. Then prove it.
Configure a simulated router and switch from their consoles, then prove it from two PCs. Timed, Packet Tracer-style missions.
- Networking
- CyberPatriot
- Offline
- Private
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Config Audit
Read it like an attacker.
Flag every risky line in a running-config, choose the best fix, and name the protections that are missing entirely.
- Networking
- CyberPatriot
- Offline
- Private
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Trouble Tickets
Read the output. Find the fault.
Study the complaint and real device output, then pick the root cause. Every ticket ends with the fix, including Packet Tracer scoring gotchas.
- Networking
- CyberPatriot
- Offline
- Private
How these tools work
- One file each. Open a tool here, or download it and run it from your computer, even offline.
- Private by design. Your data stays in your browser. Each tool says exactly what it keeps.
- Check your download. Each tool lists its SHA-256 fingerprint. Compare it with
sha256sum FILE(Linux),shasum -a 256 FILE(Mac), orcertutil -hashfile FILE SHA256(Windows). - Built with AI. Tools are made with AI assistance and tested before release.