Security Risk Analysis Toolkit
Security tools that run in your browser. There's no account to create, and nothing you enter is sent anywhere.
Pick a tool
CVSS Calculator
Score vulnerabilities against the FIRST.org v3.1 specification.
Risk Matrix
5×5 likelihood × impact heatmap with discrete bands.
Asset / Threat / Control Register
Track assets, threats, and controls with inherent and residual risk.
STRIDE Threat Modeler
Per-element STRIDE checklist for processes, stores, flows, and externals.
Attack Tree
AND/OR tree with rolled-up probabilities and PNG/SVG export.
Bow-Tie Diagram
Threats, top event, consequences, and preventive/reactive barriers.
Monte Carlo Simulator
Seedable PRNG, histograms, Loss Exceedance Curve.
FAIR Calculator
Quantitative risk: sample LEF × LM, get ALE summary stats + Loss Exceedance Curve.
Password / Entropy Tools
Measure entropy, generate random passwords, and build EFF passphrases.