Guardrails AI vs PromptGuard
| Guardrails AI | PromptGuard | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $19/mo |
| Open source | No | No |
| Platforms | api, self-hosted, Web | api, extension, Linux, macOS, self-hosted, Web, Windows |
| Prompt injection defense | Yes | — |
| PII redaction | Yes | — |
| Secrets detection | Yes | — |
| Output guardrails | Yes | — |
| Deployment model | hybrid | — |
| Free plan | — | Yes |
Both are listed in Best LLM Security Tools, Best AI Guardrail Software. On Samsung Mobile US Press, PromptGuard scores higher on our published basis.