What it does
Saber is a handwritten-notes app that supports nested folders, PDF and image viewing with dark-mode inversion, and a highlighter designed not to obscure writing. The project describes encrypted synchronization across devices and allows users to use the hosted service, another server, or a self-hosted setup. Its source repository documents optional server-storage sponsorship tiers; the app itself is open source.
Saber is aimed at tablet users who want handwriting with more control over where their notes sync. The product page highlights encrypted synchronization, nested organization, document viewing, and a distinctive highlighter behavior, while the project repository exposes its source and explains storage sponsorship for the hosted service. The software is free and open source; optional server storage can be supported at several contribution levels, but the record does not treat those donations as a mandatory subscription.
Strengths
- Open-source handwriting notes with nested folders and encrypted sync.
- Users can choose the official sync service, another server, or self-hosting.
Watch out for
- The official hosted service’s storage tiers are optional sponsorship levels, not the only way to sync.
- Feature availability can vary by platform and server configuration.
Best for
- Tablet writers who want an open-source handwriting app with encrypted sync
- People who prefer to choose or self-host their synchronization server
Sources
- Saber: Handwritten Notes (Oct 25, 2026)
- saber/pricing.md at main · saber-notes/saber · GitHub (Oct 25, 2026)