8 Best HashiCorp Boundary Alternatives & Competitors (2026)

StrongDM provides a unified access platform for databases, servers, and Kubernetes with SSO and session recording. It emphasizes just-in-time access and detailed audit trails but relies more on agent-based or gateway models rather than deep native wire-protocol rewriting. Compared with Formal, it offers broader infrastructure coverage yet fewer inline query-level masking actions and lacks Formal's policy backtesting against historical logs.

Teleport delivers identity-native infrastructure access with short-lived certificates, session recording, and Kubernetes support. It excels at SSH and RDP auditing but uses a different architecture focused on cluster access rather than database-specific protocol parsing. Versus Formal, Teleport provides strong zero-trust foundations but offers less granular column-level masking and real-time query rewriting for BI and AI workloads.

Immuta specializes in data security and governance for analytics platforms with automated policy enforcement and masking. It operates primarily at the data layer rather than as a network proxy. Relative to Formal, Immuta offers deeper data discovery and catalog integration but requires more integration effort and lacks native SSH or MCP protocol support.

Privacera delivers unified data access governance and encryption across clouds with policy-as-code capabilities. It emphasizes compliance automation for large data lakes. Compared with Formal, Privacera provides broader data catalog features but does not match Formal's sub-10ms inline proxy performance or real-time wire-level query rewriting for operational databases.

Satori offers a data security platform that discovers, classifies, and protects data with query-level controls. It focuses on self-service access requests and masking. Against Formal, Satori provides strong discovery workflows but uses a different deployment model and has less emphasis on infrastructure protocols like Kubernetes and SSH session monitoring.

Cyral acts as a database security proxy with connection management, data masking, and audit logging. It supports multiple database types and cloud environments. In direct comparison, Cyral shares Formal's proxy approach yet offers fewer policy stages, no built-in backtesting, and narrower protocol coverage beyond databases.

Apache Knox provides perimeter security for Hadoop ecosystems with authentication and proxying. It is open-source and focused on big-data clusters. Unlike Formal, Knox lacks modern database protocol parsing, AI agent controls, and enterprise policy pipelines, making it less suitable for mixed environments with Snowflake or production BI tools.