Filarr — Encrypted Workspace
Notion + Obsidian + Cryptomator in one encrypted app
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Mathis Belouar-Pruvot

Filarr — Encrypted Workspace - Notion + Obsidian + Cryptomator in one encrypted app

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Filarr is a local-first workspace for notes, files, and a knowledge graph that links both. Everything is AES-256-GCM encrypted on your disk by default, with per-file keys. Optional zero-knowledge cloud sync — the server stores only opaque ciphertext. Just shipped E2EE file sharing where the share key lives in the URL fragment, never reaching our servers. Notion + Obsidian + Cryptomator in one app. Free local use, no account needed. Solo €4/mo, Pro €8/mo. Desktop client open source under BSL 1.1.

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Mathis Belouar-Pruvot
Maker
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Hi PH! Mathis here, solo dev in France. I shipped Filarr's file sharing this weekend, which felt like the right moment to launch here. Filarr is what I wanted to use when I got frustrated juggling Notion (sees my notes), Obsidian (great editor but doesn't store files, no native encryption), and Cryptomator (vault only, no editor). I built it solo over 18 months. The product: - All your notes, files, drawings live encrypted on your disk by default - AES-256-GCM with per-file keys (KEK/FEK architecture) - Multi-profile isolation — each profile has its own master key - Knowledge graph spans notes AND files (most graph apps are notes-only) - Optional zero-knowledge cloud sync — €4/mo Solo, €8/mo Pro, never required - Free for local use, no account needed What just shipped: E2EE file sharing. The decryption key lives in the URL fragment, which browsers never send to servers per RFC 3986. So Filarr's server literally can't decrypt shared files. Two modes: from the desktop app with your account, or anonymously at filarr.com/send (no signup, like WeTransfer but actually E2EE). Honest about what it doesn't do: - No mobile app yet / desktop only (Windows + Linux today, macOS pending because I don't own a Mac yet) - No real-time multi-user collab / E2EE + CRDT is still a research problem - Cloud backend is a managed service, not self-hostable License: BSL 1.1, auto-converts to Apache 2.0 on April 19, 2030. Source on GitHub (github.com/matbel91765/filarr) Try without installing: filarr.com/send. Full product: filarr.com/download. Happy to answer questions or anything else !