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Infisical vs Azure Key Vault

How Infisical and Azure Key Vault differ on scope, key custody, deployment and cost.

	Infisical	Azure Key Vault
Type	OSS secrets	Cloud KMS
Scope	App secrets, PKI, SSH	Keys, secrets, certificates
Deployment	SaaS + self-hosted	SaaS (Azure)
Key custody	KMS module; HSM support in paid tiers	Premium tier: FIPS 140-2 Level 2/3 HSMs; Managed HSM available
How it works	Starts where most teams actually hurt: .env files in Slack. Syncs secrets into CI, Kubernetes and cloud platforms, with dynamic secrets and rotation in paid tiers, and an internal CA alongside. Self-host the same code you would rent.	One service holding three different things: cryptographic keys, arbitrary secrets and TLS certificates. Standard is software-protected, Premium is HSM-backed, and Managed HSM gives a single-tenant pool. Certificate lifecycle is included, which the other clouds keep separate.
Pricing*	Free (5 identities); Pro $20/identity/mo	Metered per operation; Premium adds HSM
Free tier	Yes	No
Licence	MIT (core)	—
Best for	Teams escaping .env files	Microsoft-centric estates

Infisical

Genuinely quick to adopt — hours, not a quarter
Open-source core you can self-host
Over a hundred integrations for syncing

Less proven at very large scale than Vault
Per-identity pricing adds up on big teams

Azure Key Vault

Covers three jobs other clouds split apart
Deep Entra ID and Azure integration
Managed HSM for single-tenant requirements

No free tier
Pricing spread across several meters

Bottom line

Choose Infisical for teams escaping .env files. Choose Azure Key Vault for microsoft-centric estates.

* Published list pricing (vendor pricing pages, August 2026).