Show HN: VaultNote – Local-first encrypted note-taking in the browser
powerwild Friday, March 06, 2026Hi HN,
I built VaultNote, a local-first note-taking app that runs entirely in the browser.
Key ideas:
- 100% local-first: no backend or server - No login, accounts, or tracking - Notes stored locally in IndexedDB / LocalStorage - AES encryption with a single master password - Tree-structured notes for organizing knowledge
The goal was to create a simple note app where your data never leaves your device. You can open the site, enter a master password, and start writing immediately.
Since everything is stored locally, VaultNote also supports import/export so you can back up your data.
Curious to hear feedback from the HN community, especially on:
- the security approach (local AES encryption) - IndexedDB storage design - local-first UX tradeoffs
Demo: https://vaultnote.saposs.com
Thanks!