Should you build your own Dashlane?
Password manager with autofill, passkeys, sharing, and security alerts
A simple vault is buildable, but matching Dashlane's extension/mobile autofill, passkey support, breach monitoring, sharing, and trust posture is not a casual clone.
ENOriginal research content in English. Original prompt preserved in English.
Build me a personal password vault to replace Dashlane. Requirements:
- A Node CLI: `vault add <name>`, `vault get <name>`, `vault list`, `vault gen`.
`get` copies the secret to the clipboard with clipboardy and clears it after
20 seconds.
- The vault is one encrypted file at ~/.vault/store.age, encrypted with age
(shell out to the age binary), key derived from a master passphrase prompted
at runtime and never written to disk.
- Each entry: name, username, password, URL, notes, updated timestamp. JSON
inside the encrypted file, decrypted only in memory.
- `vault gen` produces a 24-char random password via crypto.randomBytes, plus a
4-word diceware option for passphrases.
- `vault backup` writes a datestamped encrypted copy to ~/.vault/backups/ so I
can sync it with any file-sync tool I already trust.
- Fully local: no accounts, no telemetry, zero network calls.
- Out of scope: browser-extension autofill, passkeys, breach alerts, sharing.
Do not invent any crypto, use age exactly as shipped.
- README: state plainly that KeePassXC or Bitwarden is the sane choice for most
people, and that a forgotten master passphrase means the vault is gone.The prompt opens pre-filled in your agent. Review it before running. · this prompt is generated from the build plan · improve it via PR
What would building your own look like?
Build or adopt an encrypted vault, generate passwords, and sync encrypted data across devices.
What you will need
- encrypted storage
- browser extension
- mobile autofill support
- secure backup
- optional breach data source
They pay for low-friction secure autofill and confidence that the vault will not be lost.
xautofill polish
xpasskeys
xsecurity alerts
xaccount recovery
xaudited security
xsharing
xsupport
How much does Dashlane cost?
- Monthly billing
- $5/mo$5/mo · per person
- Per year
- $60/yr$60/yr
- On a Brazilian card, with 3.5% IOF
- R$26.13/moR$314/yr
Saved to My list. You will see a notice on this site when the price changes.
You complete the purchase on Dashlane’s site. Vibe Radar does not handle payments.
| Plan | Monthly | Annual (per month) | What is included |
|---|---|---|---|
| premium | - | $5/user≈ $5 | 1 account; unlimited passwords and devices; 1 GB encrypted file storage; VPN |
| friends & family | - | $7.50/workspace≈ $7.50 | Up to 10 accounts; 1 GB encrypted storage/account; VPN entitlement for the plan manager only |
Free tierno free tier; the former Free plan was discontinued; 14-day Premium trial
Billing termsannual only; no monthly personal plan
Additional costsWhen a paid plan expires the account becomes export-only rather than a usable free password manager; the Family VPN is limited to the plan manager, and taxes or app-store pricing can differ
verified 2026-08-14 · source ↗
Is it cheaper to build or buy Dashlane?
Adjust the numbers: hours to build, your hourly rate, running costs and the subscription price.
Over 24 months, subscribing is cheaper.
Starting hours estimated from the analysis (multi-day). Does not price what you give up (support, integrations, security).
Can I rebuild Dashlane?
Kinda. The core of Dashlane is buildable in a weekend with the prompt on this page, but there are real gaps: autofill polish, passkeys. Read the honest list above before committing.
How much does Dashlane cost?
Dashlane costs about $5/mo (Premium, checked 08/14/2026), which is $60 per year.
What do I lose by replacing Dashlane?
Honestly: autofill polish; passkeys; security alerts; account recovery; audited security; sharing; support. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Dashlane?
Yes: KeePassXC (Open-source local password manager prior art; not a Dashlane clone but covers the core vau). Using prior art is also vibecoding; the prompt is for when you want it exactly your way.