OpenBao vs SOPS
Both are alternatives to HashiCorp Vault. Here's how they stack up — verified facts, no spin.
Also searched as SOPS vs OpenBao — same comparison, one verdict.
OpenBao
TOP PICKVault before the licence changed — forked, MPL-2.0, run by a foundation.
OpenBao is the Linux Foundation's fork of Vault, taken from the last release before the Business Source License and continued under MPL-2.0. It is not a reimplementation or a lookalike: it is the same codebase, so the API, the CLI, the policy language and the storage format are Vault's, and migration is closer to a rename than a port. Governance is the whole point — it sits under a foundation with multiple corporate contributors rather than a single vendor who can change the terms again. Around 6.9k stars and actively developed. If your reason for looking is the licence rather than the product, this is the answer and there is not much more to decide.
SOPS
Encrypt secrets into the repo. No server to run at all.
SOPS takes the opposite approach: rather than a service that hands out secrets, it encrypts the values inside YAML, JSON or ENV files so the file itself is safe to commit, with keys held in AWS KMS, GCP KMS, Azure Key Vault, age or PGP. Structure stays readable, values are ciphertext, and diffs still work. There is no server, no high availability to design, and nothing to page anyone about at 3am. Originally Mozilla's, now a CNCF project under MPL-2.0 with about 22.6k stars. It is the right answer far more often than its simplicity suggests — and the wrong one the moment you need rotation, revocation or an audit trail.
Side by side
| OpenBao | SOPS | |
|---|---|---|
| Sovereignty Score | 94 | 96 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first | Yes | Yes |
| License | MPL-2.0 | MPL-2.0 |
| Pricing | Free and open source. You run it on your own infrastructure. | Free and open source. No server, so no hosting cost either. |
OpenBao is Macrostack's recommended HashiCorp Vault alternative, so it's our pick here.
OpenBao
Strengths
- +The same codebase — migration from Vault is close to drop-in
- +MPL-2.0 under Linux Foundation governance, not a single vendor's discretion
- +Keeps Vault's dynamic secrets, PKI and transit engines
- +Existing Vault knowledge, tooling and Terraform providers transfer directly
Trade-offs
- −Inherits Vault's operational difficulty in full — this is not the easy option
- −Smaller community than Vault, and the ecosystem is still catching up
- −No enterprise namespaces or vendor support contract
- −Divergence from upstream Vault will grow over time
SOPS
Strengths
- +No service to run, scale, back up or monitor — the operational cost is zero
- +Secrets live in Git with real diffs and full history
- +CNCF-governed under MPL-2.0
- +Works with cloud KMS, age or PGP for key custody
Trade-offs
- −No dynamic secrets, no automatic rotation, no revocation
- −Audit trail is your Git history and your KMS logs, nothing more
- −Rotating a leaked secret means a commit and a redeploy
- −Not a fit for large teams needing fine-grained runtime access control
Related alternative guides
Facts verified 2026-07-31. Licenses and pricing change — spotted something out of date? That's a correction we want.