Secrets Management: Vault vs. Env Variables vs. Config File
This decision page will help you decide how to securely manage sensitive data (secrets) in your application.
Answer a few questions → Get a clear recommendation.
Options you can choose from:
Vault
A dedicated tool for storing sensitive data such as passwords, API keys, and certificates in one secure place. It can automatically replace old secrets with new ones and track who accessed what. Best for production and business-critical systems.
Environment Variables
Secrets are stored as server or container environment variables. Simple, but less secure for large or distributed systems.
Config File
Secrets stored in a file on disk. Easy to set up for local development, but risky if the file is accidentally shared or committed to version control.
Answer a few simple questions below. 👇
Based on your answers, you will receive specific recommendations that you can click on to view in detail.
Decision questions
Answer honestly according to the current needs of your application and infrastructure.
1. What is the sensitivity of the managed data?
2. What is the size and distribution of the system?
3. How often do you need to replace your passwords, API keys, and other credentials?
4. Do you need a record of who accessed which secret, and when?
5. What is the team's experience with managing sensitive configuration?
Result
Based on your answers, see the recommended solution below. 👇
Each option has its own page where you will find:
- when it is appropriate
- when it is not
- typical usage
- most common mistakes
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Important note
⚠️ For live production systems, Vault is generally the safest choice. Environment variables work well for cloud deployments and automated build processes. Config files are fine for local development on your own machine.
Use this as a helpful guide, the right choice depends on your project's size and security needs.
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