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Best OpenGuardrails Alternatives in 2026

Updated

20 apps from AI guardrail software ranked against OpenGuardrails on the same published basis.

  1. 1
    PromptGuard Free plan apiextensionLinuxMacself-hosted $19/mo6.6
    OpenGuardrails vs PromptGuard
  2. 2
    Amazon Bedrock Guardrails Web $0.07/mo6.4
    OpenGuardrails vs Amazon Bedrock Guardrails
  3. 3
    Enkrypt AI Guardrails Free plan apiself-hostedWeb $134/mo6.4
    OpenGuardrails vs Enkrypt AI Guardrails
  4. 4
    Fiddler Guardrails Free plan apiself-hostedWeb Free6.4
    OpenGuardrails vs Fiddler Guardrails
  5. 5
    Openlayer Guardrails Free plan apiself-hostedWeb Free6.4
    OpenGuardrails vs Openlayer Guardrails
  6. 6
    OpenSecureAI Prompt Firewall Free plan self-hostedWeb $49/mo6.4
    OpenGuardrails vs OpenSecureAI Prompt Firewall
  7. 7
    HiddenLayer AI Runtime Security apiLinuxself-hostedWeb 5.5
    OpenGuardrails vs HiddenLayer AI Runtime Security
  8. 8
    Guardrails AI apiself-hostedWeb 5.4
    OpenGuardrails vs Guardrails AI
  9. 9
    OpenAI Guardrails apiself-hostedWeb 5.4
    OpenGuardrails vs OpenAI Guardrails
  10. 10
    Oracle Mobile Authenticator AndroidiOSWin 5.4
    OpenGuardrails vs Oracle Mobile Authenticator
  11. 11
    Pangea AI Guard apiextensionself-hosted 5.4
    OpenGuardrails vs Pangea AI Guard
  12. 12
    Check Point AI Guardrails Web 5.2
    OpenGuardrails vs Check Point AI Guardrails
  13. 13
    Microsoft Custom Neural Voice Web 5.2
    OpenGuardrails vs Microsoft Custom Neural Voice
  14. 14
    PII Firewall Free plan Linuxself-hosted Free5.2
    OpenGuardrails vs PII Firewall
  15. 15
    Radware Alteon apiLinuxself-hostedWeb 5.1
    OpenGuardrails vs Radware Alteon
  16. 16
    NVIDIA NeMo Guardrails 5.0
    OpenGuardrails vs NVIDIA NeMo Guardrails
  17. 18
    VotalAI apiself-hostedWeb 5.0
    OpenGuardrails vs VotalAI
  18. 19
    CyberSecEval 4.9
    OpenGuardrails vs CyberSecEval
  19. 20
    Amazon Nova ReelAmazon Web Services apiWeb 4.8
    OpenGuardrails vs Amazon Nova Reel
  20. 21
    LLM Guard 4.8
    OpenGuardrails vs LLM Guard

OpenGuardrails alternatives compared

#AppScoreFree planFromRuns on
1PromptGuard6.6Free plan$19/moAPI, Browser, Linux, Mac, self-hosted, Web, Windows
2Amazon Bedrock Guardrails6.4No$0.07/moWeb
3Enkrypt AI Guardrails6.4Free plan$134/moAPI, self-hosted, Web
4Fiddler Guardrails6.4Free planFreeAPI, self-hosted, Web
5Openlayer Guardrails6.4Free planFreeAPI, self-hosted, Web
6OpenSecureAI Prompt Firewall6.4Free plan$49/moself-hosted, Web
7HiddenLayer AI Runtime Security5.5No—API, Linux, self-hosted, Web
8Guardrails AI5.4No—API, self-hosted, Web
9OpenAI Guardrails5.4No—API, self-hosted, Web
10Oracle Mobile Authenticator5.4No—Android, iOS, Windows
11Pangea AI Guard5.4No—API, Browser, self-hosted
12Check Point AI Guardrails5.2No—Web
13Microsoft Custom Neural Voice5.2No—Web
14PII Firewall5.2Free planFreeLinux, self-hosted
15Radware Alteon5.1No—API, Linux, self-hosted, Web
16NVIDIA NeMo Guardrails5.0No——
18VotalAI5.0No—API, self-hosted, Web
19CyberSecEval4.9No——
20Amazon Nova Reel4.8No—API, Web
21LLM Guard4.8No——
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Questions about OpenGuardrails alternatives

What is the best alternative to OpenGuardrails?

PromptGuard, number 1 in AI guardrail software with a score of 6.6 out of 10. The others here: Amazon Bedrock Guardrails, Enkrypt AI Guardrails, Fiddler Guardrails and 16 more.

What is the best free alternative to OpenGuardrails?

PromptGuard is the best-ranked alternative with a free plan. 6 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.