# AWS Parameter Store vs AWS Secrets Manager Comparison and When to Use Each?

Here are two tables comparing **AWS Parameter Store** and **AWS Secrets Manager**, and when to use each.

### **Comparison Table: AWS Parameter Store vs. AWS Secrets Manager**

| **Feature** | **AWS Parameter Store** | **AWS Secrets Manager** |
| --- | --- | --- |
| **Primary Use Case** | Storing configuration data, non-sensitive parameters | Managing secrets such as database credentials, API keys |
| **Secret Rotation** | Not supported directly | Built-in support for automatic rotation of secrets |
| **Encryption** | Uses AWS KMS (optional) | Uses AWS KMS for encryption |
| **Cost** | Free for basic usage; charged for advanced tier | Paid service; charges for storage and API calls |
| **Integration** | Works with AWS Systems Manager, EC2, Lambda | Integrates with databases, services requiring secret rotation |
| **Versioning** | Supports versioning | Supports versioning |
| **Hierarchy Support** | Hierarchical organization with paths | No hierarchical structure |
| **Audit and Monitoring** | AWS CloudTrail support | More advanced audit capabilities with CloudTrail |
| **SDK/API Support** | Fully supported via AWS SDKs and CLI | Fully supported via AWS SDKs and CLI |
| **Ease of Use** | Simple for configuration storage | Focused on secret management, with more features for sensitive data |
| **Rotation Triggers** | Requires manual implementation | Automatically triggers Lambda functions for rotation |
| **Resource Policies** | Limited to IAM policies | Fine-grained access control and resource policies |

### **When to Use:**

| **Use Case** | **AWS Parameter Store** | **AWS Secrets Manager** |
| --- | --- | --- |
| **Storing app configurations** | ✅ Ideal for configurations like environment variables | ❌ Not the intended use case |
| **Managing secrets like passwords and API keys** | ❌ Not designed for sensitive secret management | ✅ Perfect for managing sensitive secrets |
| **Automatic secret rotation** | ❌ Requires custom implementation | ✅ Built-in support |
| **Cost-sensitive projects** | ✅ Free for basic usage | ❌ Can be costly for extensive use |
| **Hierarchical data storage** | ✅ Supports hierarchy with path structures | ❌ Does not support hierarchy |
| **Frequent access to secrets** | ✅ Suitable for frequently accessed non-sensitive parameters | ✅ Suitable for sensitive data with access tracking |
| **Compliance requirements (e.g., PCI-DSS)** | ❌ May not meet compliance needs without extra effort | ✅ Tailored for compliance scenarios |
| **Integration with existing AWS workflows** | ✅ Seamlessly integrates into most AWS services | ✅ Specialized for secret integration |