Knowledge belongs
to everyone.
Free, open-source learning for every platform. Peer-to-peer, offline-first, with Verifiable Credentials anchored to Cardano.
macOS · Windows · Linux · iOS · Android
Education without infrastructure.
No cloud servers, no subscriptions, no data collection. Just a native app that connects learners directly.
Learn Without Limits
Courses, tutorials, and Opinions from credentialed practitioners. Free, open-source, offline-first.
- Courses with real assessments
- Works offline — no internet required
- macOS, Windows, Linux, iOS, Android
A Shared Map of Knowledge
Every lesson and credential is anchored to a public skill graph, so a credential means the same thing everywhere.
- Three-tier taxonomy with prerequisite edges
- Bloom's levels: Remember → Create
- DAO-ratified, Ed25519-signed, versioned
Earn Verifiable Credentials
W3C Verifiable Credentials, signed under your own DID and hash-anchored to Cardano. Verifiable without the platform — even offline.
- Six credential types
- Selective disclosure
- Offline-verifiable bundles
Reputation Without the Star Rating
Instructors are scored on their impact on learners — a per-skill distribution with confidence bounds, not a single global number.
- Grounded in learner outcomes, not popularity
- Per-skill distributions with confidence bounds
- No five-star averages, no global scores
Own Your Data
Your keys, your identity, your content. Local encrypted storage; peer-to-peer sync — no cloud, no servers.
- Self-sovereign identity + local key vault
- Content-addressed via iroh
- P2P — no central server
Community Governed
DAOs mirror the skill taxonomy. Voting power comes from demonstrated expertise — not stake, not seniority.
- Meritocratic, scoped per domain
- Draft → committee → public vote
- Transparent governance, with on-chain enforcement rolling out
How it works.
From download to decentralized credentials in four steps.
Download & Launch
Install the native app on any platform. Create your identity with a local cryptographic vault — no account creation, no email, no server.
Learn & Earn Credentials
Access free courses, tutorials, and assessments. Every completed assessment is hashed into a course-completion proof that a Cardano validator witnesses — auto-issuing a W3C Verifiable Credential.
Issue & Anchor
Credentials are signed under your DID, hashed, and anchored to Cardano in a metadata-only transaction (preprod testnet). Verifiable by anyone, anywhere — independent of Alexandria.
Share & Govern
Share credentials selectively with employers. Your demonstrated proficiency weights your vote in platform governance. Connect peer-to-peer with other learners.
Runs everywhere.
One codebase. Every platform. Native performance.
Start learning. Own your credentials.
Alexandria is coming to every platform. Free for learners, forever.