AWS Secrets Manager is one of the better-known subscription tools in its space — and at $0.40/secret/mo + $0.05 per 10k API calls (~$20/mo at 50 secrets), one of the recurring line items people most often look to replace. If you're searching for a AWS Secrets Manager alternative you pay for once and own forever, Secretbox is the OneTimeSuite answer: $39, one time.
Why people go looking for an alternative
AWS Secrets Manager runs $0.40/secret/mo + $0.05 per 10k API calls (~$20/mo at 50 secrets), and like most SaaS the bill never stops — cancel and you typically lose access to your own history. That's roughly $720 over three years. Secretbox flips that model: Projects, environments and versioned secrets with a CLI that pipes straight into your .env.
What Secretbox covers
- Envelope encryption at rest — Every value gets its own random AES-256-GCM data key, wrapped by a master key that lives only in your .env and never in the database.
- Projects and environments — Organize projects into dev, staging, prod and custom environments, with secret versioning and one-click rollback.
- Audit-logged reveals — Every reveal, pull, edit and rollback is recorded with who, what and when.
- Environment diff — See which keys are missing or different between dev and prod without exposing the values.
- Scoped API tokens — Per-project, read-only or read-write tokens, shown once and stored as SHA-256 hashes.
The honest trade-off
AWS Secrets Manager will keep shipping features, integrations and managed infrastructure that a pay-once tool won't chase — if that ecosystem is genuinely load-bearing for your workflow, staying is a fair call. For the core job, the math favors owning the tool: $39 once against $0.40/secret/mo + $0.05 per 10k API calls (~$20/mo at 50 secrets) forever. Under four months of Doppler for a five-person team already costs more than Secretbox, which then never charges per seat again.
Also worth reading
Secretbox's main head-to-head is with Doppler Team — see the detailed comparison or the product page for the full feature list, FAQ and demo video.
Try Secretbox — $39, once
Projects, environments and versioned secrets with a CLI that pipes straight into your .env.