Phase

Phase is an open-source secrets platform for teams managing application credentials across development and production. It is strongest for organizations that want both managed and self-hosted deployment, with scoped access controls and recovery features. Its main trade-off is scale: the Free plan caps users, apps and environments tightly, while Pro adds meaningful team capacity at an annual billing commitment.

Overview

Phase centralizes application secrets and supports using them across development and production workflows. Teams can choose its managed Cloud service or run it on their own infrastructure, including air-gapped environments. Integrations span AWS, Azure, HashiCorp Vault, Docker, Kubernetes, Cloudflare, GitHub, GitLab, Vercel and Railway, which makes it a plausible fit for teams whose deployments cross several tools.

The CLI also installs skills for Claude Code, Codex, Cursor, OpenCode and VS Code Copilot, allowing those tools to manage secrets through natural-language requests. That is a useful bridge for teams adopting AI coding tools, but the stronger reasons to consider Phase are its deployment flexibility and administrative controls. For a wider comparison, see Secrets Management Tools.

Key features

Encryption and access control

Phase says end-to-end encryption is enabled by default and that its servers store only ciphertext in that mode. Managed and custom RBAC roles can be scoped by app and environment, while IP allow-lists can constrain access for users and service accounts. Together, these controls suit teams that need to separate access across projects or environments rather than share credentials broadly.

Audit, recovery and offline access

Phase records access, changes and grants, and its home page describes point-in-time rollback for any secret. Pro includes 90-day audit logs and point-in-time recovery, making that tier more relevant to teams that need a defined review window and a recovery mechanism. The CLI caches secrets locally encrypted at rest and can inject them while offline, useful when connectivity is interrupted without leaving cached values unprotected at rest.

Deployment and security

Self-hosting, including air-gapped deployment, gives organizations a choice beyond managed Cloud. Phase says it is independently audited under SOC 2 Type 2 and penetration tested by Oneleet. Enterprise adds access to the SOC 2 Type 2 audit report and external penetration testing report, alongside third-party KMS and SIEM-related capabilities.

Pricing

The Free plan costs nothing and includes up to 5 users or service accounts, 3 apps and 3 environments, plus OAuth SSO, AI Agent Integration and Phase Agents Relay. Those caps make it suitable for a small team evaluating the workflow, but five identities and three apps leave little room for growth. It does not include the Pro plan’s automated secret rotation or 90-day audit logs.

Pro costs $10 a month, billed $120 billed annually ($144 shown), and includes unlimited users and service accounts, unlimited apps, 10 custom environments, Teams, custom roles, network access policies, point-in-time recovery, automated secret rotation and 90-day audit logs. A 14 days free trial is included. Pro is the practical step up when Free’s caps or the need for rotation and recovery become constraints; the annual charge is the material commitment despite the monthly price presentation.

Enterprise costs $25 a month, billed $300 billed annually ($360 shown). It adds unlimited custom environments, OIDC SSO, SCIM provisioning, dynamic secrets, global network access policies, third-party KMS, audit log forwarding, SIEM integration, and the SOC 2 Type 2 and external penetration testing reports. It is aimed at organizations with identity provisioning, centralized monitoring or key-management requirements beyond Pro. Community, email and Slack support are listed, with dedicated live support and SLAs as an optional add-on.

Platforms

Phase supports API, Linux, macOS, self-hosted deployment, web and Windows. The self-hosted option is especially relevant to teams that need to operate the platform on their own infrastructure; the CLI’s encrypted offline cache adds resilience when secrets are needed without a network connection.

Who it's for

Phase suits development and platform teams that manage secrets across multiple apps or environments and want scoped roles, audit records and rollback in one system. It is also a strong candidate for organizations that require self-hosting or air-gapped deployment. Teams with only a handful of users and apps can start on Free, but those expecting to exceed its limits should assess Pro’s annual billing. Organizations needing OIDC SSO, SCIM, dynamic secrets or SIEM integration will need Enterprise.

Pros and cons

Pros: Managed Cloud and self-hosted deployment, including air-gapped environments, serve teams with different infrastructure constraints.

Pros: App- and environment-scoped roles, IP allow-lists, audit records and rollback address access governance and recovery needs.

Pros: CLI skills for five named AI coding tools connect secret workflows to tools teams may already use.

Cons: Free is capped at 5 users or service accounts, 3 apps and 3 environments, so growing teams may quickly need a paid tier.

Cons: Pro’s $120 annual billing commitment is significant for teams that only need a short-term or very small deployment.

Cons: Several enterprise-oriented capabilities, including OIDC SSO, SCIM and SIEM integration, require the Enterprise tier.

Alternatives

Envshed is worth considering for a smaller free deployment: its Developer plan is free forever for up to 2 members and 3 projects, with unlimited secrets, AES-256-GCM encryption, CLI and API access. Choose it when those project and membership limits fit better than Phase’s caps.

Infisical offers a free Secrets Management plan with 5 identities, unlimited projects and 100+ integrations. It may suit teams prioritizing project breadth or a large integration count on a free tier.

secr is another freemium alternative. dotenvx is described by its maker as free and open source. KeyEnv offers a free tier with up to 3 projects, 100 secrets per environment, CLI access and end-to-end encryption. BeyondTrust Remote Support is another option to compare. Doppler is an alternative for teams comparing secrets-management plans. Keyway is another freemium choice.

Verdict

Choose Phase if your team needs secrets management with the option to self-host, app- and environment-scoped access controls, and a clear path from a small free setup to recovery and rotation features on Pro. Look elsewhere if Free’s five-identity and three-app limits are too restrictive and Pro’s annual billing does not fit, or if your requirements center on capabilities reserved for Enterprise.