Keeper
Manage a local encrypted credential vault and secure notes
A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Keeper, manage a local encrypted credential vault and secure notes. The hard boundary is audits, enterprise controls, autofill, monitoring, recovery, and support, plus security assurance, infrastructure, and trust.
Build verification: not recorded. How we judge buildability
What you give up
- audits, enterprise controls, autofill, monitoring, recovery, and support
- independent security audits
- global relay infrastructure
- breach monitoring data
- account recovery and support
Why people still pay
People still pay for Keeper because security products are paid for because expert review, infrastructure, and accountability matter more than recreating screens. The recurring cost buys cryptography, secure updates, key recovery, threat intelligence, relay capacity, abuse response, audits, and incident handling, not just the visible interface.
Your build guide
The stack, security requirements, and agent rules for a focused replacement.
Before you start
- desktop OS
- secure backup location
- modern cryptographic libraries
- careful review before real-world use
Use these project rules and optional skill references alongside the prompt. Review each skill before adding it to your agent; the AGENTS.md export includes the same guidance.
Project rule, data: Model authorized targets, source observations, findings, review decisions, and exports; keep stable source IDs and timestamps.
Project rule, behavior: Keep all vault data encrypted with a master key derived through Argon2id and a unique salt.
Project rule, recovery: Implement lock timeout, clipboard clearing, password generation, import, export, and encrypted backups.
Implementation plan
Phase 1, architecture and data
Use Rust, Tauri 2, React, SQLite, Argon2id, and audited cryptographic libraries. Model authorized targets, source observations, findings, review decisions, and exports; keep stable source IDs and timestamps.
Phase 2, implement
Keep all vault data encrypted with a master key derived through Argon2id and a unique salt.
Phase 3, implement
Implement lock timeout, clipboard clearing, password generation, import, export, and encrypted backups.
Phase 4, review and output
Manage a local encrypted credential vault and secure notes with strong encryption, explicit threat-model documentation, and no claim of replacing an audited service. Implement lock timeout, clipboard clearing, password generation, import, export, and encrypted backups.
Phase 5, recovery and acceptance
Implement lock timeout, clipboard clearing, password generation, import, export, and encrypted backups. Verify this invariant with a saved fixture: A wrong credential must reveal no record content; a recovery import must restore the same record IDs and values. State the practical limit: audits, enterprise controls, autofill, monitoring, recovery, and support.
Build me a focused passwords, privacy and private networking workflow for the personal core of Keeper. Requirements: - Use Rust, Tauri 2, React, SQLite, Argon2id, and audited cryptographic libraries. Model authorized targets, source observations, findings, review decisions, and exports; keep stable source IDs and timestamps. - Paid product context: Manage a local encrypted credential vault and secure notes. Build only this DIY scope: Manage a local encrypted credential vault and secure notes with strong encryption, explicit threat-model documentation, and no claim of replacing an audited service. - For passwords, privacy and private networking, define the master credential, local threat boundary, and recovery path before importing secrets. - Create, edit, lock, and unlock one encrypted vault using a maintained primitive and explicit key derivation settings. - Search the unlocked vault and export an encrypted recovery copy with clear user action. - Use a desktop window with source import, a work list, and result export. Required input or access: desktop OS; secure backup location. - Recovery: Implement lock timeout, clipboard clearing, password generation, import, export, and encrypted backups. - Acceptance: with one labelled sample, show the input, saved intermediate state, and exported result; verify this invariant: A wrong credential must reveal no record content; a recovery import must restore the same record IDs and values. - Out of scope: audits, enterprise controls, autofill, monitoring, recovery, and support; independent security audits. Keep this a personal, inspectable workflow. - Include a README with setup, a sample input, required keys or permissions, data location, and the supported scope.
$ open in your agent (prompt prefilled, you press enter), copy the prompt or copy AGENTS.md · generated from this app's build plan
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Alternatives to building your own
all 6 free alternatives to Keeper →· no votes, no pay-to-list · just what's real
Questions about Keeper
Can you build your own Keeper with AI?
A full replacement is not the recommended project. A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Keeper, manage a local encrypted credential vault and secure notes. The hard boundary is audits, enterprise controls, autofill, monitoring, recovery, and support, plus security assurance, infrastructure, and trust.
What does the Keeper build prompt cover?
The prompt starts with this scope: Manage a local encrypted credential vault and secure notes with strong encryption, explicit threat-model documentation, and no claim of replacing an audited service. Full-product capabilities excluded from the comparison include: audits, enterprise controls, autofill, monitoring, recovery, and support; independent security audits; global relay infrastructure. Follow the implementation plan and its prerequisites before expanding the build.
How do I use the prompt, AGENTS.md and agent skills?
Start with the Keeper prerequisites and stack, then copy the prompt into your coding agent. Save the project rules as AGENTS.md in the project root. Linked skills are optional packages or source instructions for specific tasks; review their current contents and install only those matching the chosen stack. A skill does not supply API credentials or verify the finished app.
How long will this Keeper project take?
The catalogue estimate is closest consolation build: one sitting for the limited scope. Setup, integration approvals, debugging, deployment and ongoing maintenance can add time. This is an estimate, not a delivery guarantee.
What would I give up by replacing Keeper?
audits, enterprise controls, autofill, monitoring, recovery, and support; independent security audits; global relay infrastructure; breach monitoring data; account recovery and support. People still pay for Keeper because security products are paid for because expert review, infrastructure, and accountability matter more than recreating screens. The recurring cost buys cryptography, secure updates, key recovery, threat intelligence, relay capacity, abuse response, audits, and incident handling, not just the visible interface.
What price is this guide comparing against?
The recorded Personal plan is $3.75/mo (annual-equivalent), checked 2026-07-31. Check the linked pricing source before buying. Building your own also has hosting, API and maintenance costs; the recorded amount is not a guaranteed saving.
What can I use instead of building Keeper?
Vaultwarden: Bitwarden’s clients pointed at your own server; unofficial, capable, and now you are the outage. KeePassXC: A vault file on your disk with excellent autofill; syncing and sharing are deliberately somebody else’s job. Passbolt Community Edition: A team password vault with real sharing and a server stack that expects an adult in the room. Compare all listed options at https://howtovibecodeit.dev/keeper-password-manager/alternatives. Check each option's license, hosting needs and feature limits.