Alibaba Cloud Key Management Service (KMS) vs Teller: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Alibaba Cloud Key Management Service (KMS) is a commercial key management tool by Alibaba Cloud. Teller is a free key management tool. Compare features, ratings, integrations, and community reviews side by side to find the best key management fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Alibaba Cloud Key Management Service (KMS)
Teams running workloads on Alibaba Cloud who need key management without vendor lock-in should start here; BYOK support and FIPS 140-2 Level 3 HSMs eliminate the forced dependency on proprietary key storage. The integration depth with ECS, RDS, and OSS means you're not bolting on a separate key service,it's native to your data layer. Skip this if you're multi-cloud or heavily committed to AWS or Azure, since Alibaba Cloud KMS only secures keys within Alibaba's ecosystem.
Developers managing secrets across multiple cloud providers during local development should use Teller for its provider-agnostic approach; it pulls from AWS Secrets Manager, HashiCorp Vault, 1Password, and others without forcing a single vault standard. The 3,181 GitHub stars and free pricing mean adoption friction is genuinely low for teams testing secret rotation workflows before committing to a paid platform. Skip this if you need runtime secret injection in production containers or centralized audit logging; Teller is built for the laptop-to-staging workflow, not the control plane.
