CyberKit.tools

Fast, privacy-first cybersecurity & network web utilities

Developer ToolsLaunched Sep 19, 2026

What is CyberKit.tools?

Calculate CVSS scores, inspect JWT tokens, design CIDR subnets, and generate crypto hashes instantly. Free, lightweight browser-based security utilities. Key features: • CVSS v4.0 / v3.1 calculators & Risk Matrix • Client-side JWT Inspector & signature debugging • Interactive CIDR & Subnet planners • Cryptographic hash generators & multi-decoders • 100% free, fast, zero auth, and ad-free.

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