SOPS vs Doppler
SOPS
SOPS (Secrets OPerationS) is a command-line tool for editing encrypted files. It uses KMS keys (AWS KMS, GCP KMS, Azure Key Vault, HashiCorp Vault, age, or PGP) to encrypt only the values in YAML, JSON, ENV, or INI files. Leaving the keys readable so you can diff changes in Git. Originally created at Mozilla and now a CNCF Incubating project, SOPS is a favorite for teams that want encrypted-in-Git secrets without adopting a full operator.
Pros
- Encrypted values + readable keys makes Git review actually work
- No server or operator to run; pure CLI tool
- Multi-key support makes sharing with teammates painless
- Works with almost every KMS; vendor-agnostic
Things to check
- Requires discipline: anyone can commit an unencrypted secret by accident
- Key management is on you; rotating a compromised key is manual
- Not a secrets manager; no audit trail of accesses
- Only encrypts at rest in Git; runtime apps still need a way to decrypt
Pricing: Free (open source)
Doppler
Doppler is a developer-first secrets management platform that centralizes environment variables and secrets across all your applications. It provides a universal secrets manager that syncs across local dev, CI/CD, staging, and production environments.
Pros
- Excellent developer experience
- Easy setup and onboarding
- Great CI/CD integration
- Free tier for individuals
- Transparent per-user pricing
Things to check
- Self-hosting only available on the Enterprise plan
- Less mature than HashiCorp Vault
- Limited enterprise compliance features
- Smaller community
Pricing: Developer plan free for 3 users then $8 per month per additional user; Team plan $21 per month per user with a 14 day free trial; Enterprise custom pricing with cloud or on premises deployment