EpicenterHQ/epicenter

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

4771 stars · 373 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Epicenter is a local-first application platform and developer toolkit where an app's entire data set is a single CRDT (Yjs) document stored as plain text and SQLite on your machine, syncing across devices without a central server. It ships with apps like Honeycrisp (notes) and Whispering (transcription), plus MIT-licensed libraries for building your own local-first apps.

Use cases

• build a local-first app that works offline and syncs across devices
• store app data as plain text and SQLite files I own
• sync notes between devices without a cloud server
• create a CRDT-backed data layer with synchronous reads
• transcribe meetings locally and keep the data on my machine
• own my data instead of locking it into a SaaS app

When to choose

• you want local-first architecture with CRDT-based multi-device sync
• you want your app's data as plain files on disk that survive app deletion
• you're building Svelte/Tauri apps and want a shared data toolkit
• you value open-source, auditable software with no middleman servers

When to avoid

• you need a mature, battle-tested framework with a large ecosystem
• you require server-authoritative data or centralized access control
• you need a traditional client-server database with SQL queries against a remote backend
• you want a polished end-user product rather than an early-stage platform

Facets

framework · maturity active

state-management serialization developer-tools sdk developer-tools web-development self-hosted privacy cross-platform local-first crdt yjs svelte tauri sqlite notes-app data-ownership offline-first desktop web-server typescript

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markdown · JSON · MCP: product_card(name="EpicenterHQ/epicenter")