{
  "slug": "verifpal",
  "name": "Verifpal",
  "tagline": "Developer-friendly symbolic protocol analysis",
  "maintainer": "Symbolic Software (Nadim Kobeissi)",
  "url": "https://verifpal.com",
  "category": "symbolic-protocols",
  "targets": [
    "Protocols"
  ],
  "approach": "Symbolic analysis with an intentionally simple modelling language",
  "license": "Open source",
  "status": "Maintained",
  "summary": "Verifpal is a symbolic protocol analyser designed for engineers rather than formal-methods specialists. Its modelling language is deliberately simple, which limits expressiveness relative to Tamarin and ProVerif but lowers the barrier to a first model.",
  "details": [
    "Verifpal is a good on-ramp; models often graduate to Tamarin or ProVerif when the protocol grows."
  ],
  "strengths": [
    "Readable models.",
    "Fast feedback.",
    "Good documentation."
  ],
  "limits": [
    "Less expressive.",
    "Fewer guarantees than the mature tools.",
    "Smaller community."
  ],
  "fit": [
    "Use for first models and for teaching."
  ],
  "references": [
    [
      "Verifpal",
      "https://verifpal.com"
    ]
  ],
  "category_name": "Symbolic protocol analysis",
  "page": "https://sorryfree.com/frameworks/verifpal/",
  "updated": "2026-09-13"
}