Keeper alternative: Backbuild Secrets vs Keeper

Backbuild Secrets is a full password and secrets manager that is free on every Backbuild plan, including the Free plan, with unlimited items and unlimited devices. Keeper has a free tier, but it is limited to 10 passwords on a single mobile device with no autofill, so most people move to a paid Keeper plan. On the Backbuild free plan you also get role-based access control, single sign-on, SCIM user provisioning, and a tamper-evident audit log, which Keeper reserves for its paid Business and Enterprise tiers. The honest counterweight is where you use it: Keeper has mature mobile, desktop, and browser autofill you can install today, while the Backbuild mobile app and browser autofill extension are still rolling out.

Both are zero-knowledge, so neither provider can read a vault, and both now encrypt stored vault data with post-quantum cryptography: Keeper layers a Kyber hybrid key-encapsulation mechanism over its AES-256 and elliptic-curve record model, and Backbuild wraps the vault key with X25519 combined with ML-KEM-768. The genuine difference is key derivation. Backbuild hardens the master password with Argon2id, a memory-hard function, while Keeper uses PBKDF2-HMAC-SHA256 at one million iterations, which reviewers note is less resistant to GPU-based attacks than a memory-hard function. On published transparency Keeper leads decisively: it holds FedRAMP High and StateRAMP authorization, FIPS 140-3 validated cryptography, and SOC 2 Type II, and it runs quarterly independent penetration tests, while Backbuild is built to meet SOC 2, ISO 27001, and PCI DSS but does not yet publish independent audit results.

Export your Keeper vault to a CSV file, then import it into Backbuild Secrets through the CSV importer, which maps the columns of a Keeper export into logins, passwords, and notes. Because the vault is zero-knowledge, the import and the encryption that follows happen on your device, so the plaintext export never reaches a Backbuild server. Backbuild also ships dedicated one-click importers for 1Password, Bitwarden, KeePass, and LastPass exports.

This is where Keeper leads. Keeper has mature iOS and Android apps and desktop apps with autofill across every major browser, BreachWatch dark-web monitoring as an add-on, and KeeperPAM with Keeper Secrets Manager for privileged access, session management, and automated secrets rotation. Backbuild Secrets runs in the web app and in a native Windows and macOS desktop app; the browser autofill extension and the native mobile app are still rolling out. Backbuild includes compromised, weak, and reused password checks but not a live dark-web monitoring service, and it does not offer automated rotation or privileged-access session management. If dark-web monitoring, autofill on your phone today, or a privileged-access platform is your first requirement, Keeper is the stronger choice.

Yes, and this is the categorical difference from a manager built only for people. The Backbuild browser extension gives an AI agent full control of the page, but the extension and the server both refuse to let the agent focus or drive any password or one-time-code field. When a login needs a credential, the zero-knowledge vault fills it directly, so the value is placed in the field without ever passing through the AI. Keeper has no AI-browser-control surface, so this class of workflow is not part of its model. For machine and service secrets, a Backbuild machine grant is bound to one machine, one vault, and an exact scope, requires owner consent with a step-up, and is pinned to an environment, and that grant decrypts on the calling machine, so on the machine path plaintext is handled locally.

Keeper has a deep, mature governance and compliance offering: an admin console with delegated administration, node and team structure, and granular enforcement policies that reviewers call among the most granular in the category, single sign-on and SCIM on its Enterprise tier, and a compliance stack that includes FedRAMP High, StateRAMP, FIPS 140-3, SOC 2 Type II, ISO 27001, HIPAA, and PCI DSS Level 1. Backbuild includes role-based access control, single sign-on, SCIM user provisioning, a tamper-evident audit log, policy controls, and per-organization isolation free on every plan, including the Free plan, though its SCIM covers users rather than users and groups, its enforcement policies are less granular than Keeper enterprise policies, and it does not yet carry FedRAMP or published audit results. The split is depth and compliance against price and reach: Keeper offers deeper enterprise controls and a government-grade compliance record on paid tiers, and Backbuild gives the core governance controls at no cost inside a wider workspace.

Keeper is one of the more premium managers, and several capabilities are paid add-ons on top of the plan price, including BreachWatch dark-web monitoring and secure file storage, which reviewers describe as add-on costs that raise the total. Backbuild Secrets is free on every plan, including role-based access, single sign-on, SCIM, and audit logging, and its breach checks are included at no cost. The larger economic point is consolidation: because Backbuild Secrets lives inside the same all-in-one workspace as mail, calendar, docs, sheets, and the rest, adopting it can retire several separate subscriptions rather than adding one. Keeper remains the stronger value for an organization that needs its government-grade compliance, privileged-access platform, and mature clients on every device, which Backbuild does not match today.