Phase

Phase is an open-source secrets platform for teams managing application credentials from development through production. It is best suited to teams that need scoped access controls, deployment flexibility and developer-tool integrations. Its appeal is broad, but the Free plan’s small team and app caps make Pro the more practical tier as usage grows.

Overview

Phase brings application secrets into a single platform, with options to use managed Cloud or run it on your own infrastructure, including air-gapped environments. Its listed integrations span AWS, Azure, HashiCorp Vault, Docker, Kubernetes, Cloudflare, GitHub, GitLab, Vercel and Railway, making it relevant to teams working across varied development and deployment tools.

The CLI extends secret management to AI coding tools: installed skills let Claude Code, Codex, Cursor, OpenCode and VS Code Copilot manage secrets using natural language. That connection may suit teams adopting those tools, though the central case for Phase remains its controls, deployment options and recovery capabilities.

For a broader category comparison, see Secrets Management Tools.

Key features

Encryption and access controls

Phase says end-to-end encryption is enabled by default and servers store only ciphertext in that mode. Teams can use managed or custom RBAC roles scoped per app and environment, with IP allow-lists for users and service accounts. Together, these controls make Phase a stronger fit for teams that need to limit who can reach particular secrets than for a simple, single-user credential store.

Audit, recovery and offline work

Phase records access, changes and grants, and describes point-in-time rollback for any secret. Pro includes 90-day audit logs and point-in-time recovery; these are meaningful safeguards for teams that need a defined history and a way to recover earlier values. The CLI also caches secrets locally encrypted at rest and supports injecting them while offline, useful when connectivity is unavailable.

Deployment, rotation and security

Teams can choose managed Cloud or self-hosting, including air-gapped deployment. Phase supports secret rotation, dynamic secrets and CI/CD injection; Pro adds automated secret rotation, while Enterprise includes dynamic secrets. Phase says it is independently audited under SOC 2 Type 2 and penetration tested by Oneleet, and Enterprise includes the SOC 2 Type 2 audit report and external penetration-testing report.

Pricing

The freemium structure gives small teams a way to start without a subscription, but its limits are consequential: Free allows up to 5 users or service accounts, 3 apps and 3 environments. It includes OAuth SSO, AI Agent Integration and Phase Agents Relay, but does not include Pro’s custom environments, teams, custom roles, network access policies, recovery, automated rotation or 90-day audit logs.

Pro costs $10/user/mo, with $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-day free trial lets teams evaluate the paid tier. Pro is the natural step for teams that have outgrown Free’s user, app or environment caps and need its added controls.

Enterprise is $25.00 per month, with $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 and SIEM integration. This tier suits organizations needing those identity, key-management or monitoring capabilities; its stated price is per month, while Pro’s price is explicitly per user.

Support options include community, email and Slack support, with dedicated live support and SLAs available as an optional add-on.

Platforms

Phase is available through API, Linux, macOS, web and Windows, as well as self-hosted deployment. The combination of a CLI, web access and customer-operated hosting gives teams a choice of working style and infrastructure boundary.

Who it's for

Phase is a good fit for development and platform teams that manage secrets across multiple apps or environments, want access scoped by role and network, and value audit trails or rollback. Self-hosting and air-gapped deployment make it a candidate for teams that need to operate on their own infrastructure. The Free tier can serve a small evaluation or setup, but its caps are restrictive for larger teams; teams needing unlimited capacity and advanced features should weigh Pro or Enterprise.

Pros and cons

• Pros: Managed and self-hosted deployment, including air-gapped environments, lets teams choose where Phase runs.
• Pros: App- and environment-scoped RBAC, IP allow-lists, audit records and point-in-time recovery address distinct access and operational needs.
• Pros: CLI support for several AI coding tools brings secret management into those workflows.
• Cons: Free is capped at 5 users or service accounts, 3 apps and 3 environments, so growth can require a paid plan.
• Cons: Pro’s $10/user/mo price is a per-user commitment, which matters as team size rises.
• Cons: Dedicated live support and SLAs are optional add-ons rather than included support.

Alternatives

Infisical is worth comparing for teams seeking a free tier with 5 identities, unlimited projects and 100+ integrations, or needing Linux and self-hosted support.

SikkerKey may suit teams looking for a free Developer plan with 10 machines and one month of audit retention; it has no free trial.

Akeyless offers a free tier with 5 clients, 500 static secrets, 5 dynamic secrets, 5 rotated secrets and one Gateway cluster, with 3 days of audit-log retention. Its Enterprise plan uses custom pricing.

Doppler is another freemium option; its Developer plan is $8.00 per month, billed at $8/mo per additional user, with 3 users free, 5 config syncs and 3 days of access-log retention.

Oracle Cloud Infrastructure Secret Management may fit readers looking for a free API and web service with tenancy and secret-version limits.

KeyEnv offers a free plan with up to 3 projects, 100 secrets per environment, CLI access, end-to-end encryption and community support.

AWS Secrets Manager is a paid service with a free plan and no free trial; its AWS Free Tier offers up to $200 in credits for six months after account creation, with credits expiring within 12 months.

Keyway is an alternative with a Pro plan at €9 a month, billed 9€/month, including 10 private repos, unlimited environments and unlimited collaborators.

Verdict

Choose Phase if your team wants a secrets platform with flexible managed or self-hosted deployment, scoped access controls, audit and recovery features, and integrations for established developer and infrastructure tools. Its Free tier is useful for a small start, but the 5-user, 3-app and 3-environment limits are easy to reach; Pro is the more capable choice for growing teams, while Enterprise is aimed at organizations needing its identity, KMS and SIEM features. Look elsewhere if those controls and deployment choices do not justify the per-user Pro cost or the small Free caps.