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Best PII Firewall Alternatives in 2026

12 apps from AI guardrail software ranked against PII Firewall on the same published basis.

  1. 1
    Enkrypt AI Guardrails Free plan apiself-hostedWeb $11.17/mo8.3
    PII Firewall vs Enkrypt AI Guardrails
  2. 2
    Amazon Bedrock Guardrails Web $0.07/mo7.5
    PII Firewall vs Amazon Bedrock Guardrails
  3. 3
    OpenAI Guardrails apiself-hostedWeb 7.4
    PII Firewall vs OpenAI Guardrails
  4. 4
    Fiddler Guardrails Free plan apiself-hostedWeb Free7.3
    PII Firewall vs Fiddler Guardrails
  5. 5
    Openlayer Guardrails Free plan apiself-hostedWeb Free7.2
    PII Firewall vs Openlayer Guardrails
  6. 6
    HiddenLayer AI Runtime Security apiLinuxself-hostedWeb 6.9
    PII Firewall vs HiddenLayer AI Runtime Security
  7. 7
    VotalAI Web 6.7
    PII Firewall vs VotalAI
  8. 8
    OpenSecureAI Prompt Firewall Free plan self-hostedWeb $49/mo6.7
    PII Firewall vs OpenSecureAI Prompt Firewall
  9. 9
    Pangea AI Guard apiextensionself-hosted 6.6
    PII Firewall vs Pangea AI Guard
  10. 10
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo6.5
    PII Firewall vs PromptGuard
  11. 11
    NVIDIA NeMo Guardrails 6.4
    PII Firewall vs NVIDIA NeMo Guardrails
  12. 12
    Guardrails AI self-hostedWeb 6.2
    PII Firewall vs Guardrails AI
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