--- Infisical is an open-source secret management platform that offers a wide range of tools for managing secrets securely and efficiently across infrastructure, including secure version-controlled secret storage, secret rotation, integrations with development, CI/CD, and production environments, certificate lifecycle management, and secret scanning. It has over 12,700 GitHub stars and is widely adopted by Fortune 500 enterprises, fastest-growing startups, and international governments. Infisical offers a more advanced feature set compared to GCP Secret Manager. HashiCorp Vault is another alternative that provides advanced functionality for managing application identities and providing secure access to cloud resources, but it requires a larger developer community and has a steeper learning curve. AWS Secrets Manager is a native secrets management solution provided by AWS, which integrates better with AWS tools, but its simplicity might not be suitable for all organizations. Building an in-house secret management tool can offer high customization, but it comes with significant challenges and considerations, including resource-intensive development, ongoing maintenance and support, audit and compliance challenges, security expertise requirement, lack of external support, training for new employees, and scalability concerns.