Best OpenGuardrails Alternatives in 2026
Updated
20 platforms from AI guardrail software ranked against OpenGuardrails on the same published basis.
- 1OpenGuardrails vs Enkrypt AI Guardrails
- 2OpenGuardrails vs Fiddler Guardrails
- 3OpenGuardrails vs Openlayer Guardrails
- 4OpenGuardrails vs PromptGuard
- 5OpenGuardrails vs HiddenLayer AI Runtime Security
- 6OpenGuardrails vs OpenAI Guardrails
- 7OpenGuardrails vs Pangea AI Guard
- 8OpenGuardrails vs Guardrails AI
- 10OpenGuardrails vs Radware Alteon
- 11OpenGuardrails vs Amazon Nova Reel
- 12OpenGuardrails vs OpenSecureAI Prompt Firewall
- 13OpenGuardrails vs Amazon Bedrock Guardrails
- 14OpenGuardrails vs Microsoft Custom Neural Voice
- 15OpenGuardrails vs Oracle Mobile Authenticator
- 16OpenGuardrails vs PII Firewall
- 17OpenGuardrails vs Check Point AI Guardrails
- 18OpenGuardrails vs NVIDIA NeMo Guardrails
- 19OpenGuardrails vs CyberSecEval
- 20OpenGuardrails vs VotalAI
- 21OpenGuardrails vs LLM Guard
OpenGuardrails alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Enkrypt AI Guardrails | 7.4 | Free plan | $134/mo | API, self-hosted, Web |
| 2 | Fiddler Guardrails | 7.3 | Free plan | Free | API, self-hosted, Web |
| 3 | Openlayer Guardrails | 7.3 | Free plan | Free | API, self-hosted, Web |
| 4 | PromptGuard | 7.3 | Free plan | $19/mo | API, Browser, Linux, Mac, self-hosted, Web, Windows |
| 5 | HiddenLayer AI Runtime Security | 7.0 | No | — | API, Linux, self-hosted, Web |
| 6 | OpenAI Guardrails | 7.0 | No | — | API, self-hosted, Web |
| 7 | Pangea AI Guard | 7.0 | No | — | API, Browser, self-hosted |
| 8 | Guardrails AI | 6.9 | No | — | API, self-hosted, Web |
| 10 | Radware Alteon | 6.8 | No | — | API, Linux, self-hosted, Web |
| 11 | Amazon Nova Reel | 6.5 | No | — | API |
| 12 | OpenSecureAI Prompt Firewall | 6.0 | Free plan | $49/mo | self-hosted, Web |
| 13 | Amazon Bedrock Guardrails | 5.9 | No | $0.07/mo | Web |
| 14 | Microsoft Custom Neural Voice | 5.2 | No | — | Web |
| 15 | Oracle Mobile Authenticator | 5.2 | No | — | Android, iOS, Windows |
| 16 | PII Firewall | 5.1 | No | — | Linux |
| 17 | Check Point AI Guardrails | 5.0 | No | — | Web |
| 18 | NVIDIA NeMo Guardrails | 4.9 | No | — | — |
| 19 | CyberSecEval | 4.8 | No | — | — |
| 20 | VotalAI | 4.8 | No | — | Web |
| 21 | LLM Guard | 4.6 | No | — | — |
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Questions about OpenGuardrails alternatives
What is the best alternative to OpenGuardrails?
Enkrypt AI Guardrails, number 1 in AI guardrail software with a score of 7.4 out of 10. The others here: Fiddler Guardrails, Openlayer Guardrails, PromptGuard and 16 more.
What is the best free alternative to OpenGuardrails?
Enkrypt AI Guardrails is the best-ranked alternative with a free plan. 5 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.