AWS Secrets Manager vs. Parameter Store: Which Should You Use?

AWS provides two primary services for managing sensitive information: Secrets Manager and Systems Manager Parameter Store, each suited for different needs based on features beyond basic storage. Secrets Manager is tailored for storing credentials requiring automatic rotation and strict access control, whereas Parameter Store is a general-purpose configuration store that supports optional encryption for sensitive data. The choice between these services often hinges on operational scale and pricing, with Secrets Manager becoming more costly as the number of secrets increases due to its monthly billing per secret and additional charges for API calls. Most organizations employ a hybrid approach, using Parameter Store for non-sensitive configurations and Secrets Manager for credentials demanding rotation or cross-account sharing. As organizations grow and complexity increases, managing and auditing these separate systems can become cumbersome, prompting the adoption of solutions like Infisical, which can synchronize and manage secrets across both services, thereby simplifying the maintenance and oversight of sensitive data.

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