A fast, modern spaced-repetition desktop app — fully compatible with Anki.
Anki's scheduling algorithm is excellent; its interface hasn't kept up. Synapse wraps the same proven data model (and lets you move decks in and out of Anki losslessly) in a native, keyboard-first desktop app that gets out of the way during study.
- 100% Anki-compatible import/export (
.apkgv2/v3,.colpkg; schema v11 & v18) - SM-2 and FSRS scheduling, switchable per deck
- Offline-first, native-feeling, keyboard-first
- Sandboxed plugins for extending the app without trusting arbitrary code
- Tauri + React/TypeScript shell over a UI-agnostic Rust core
Download the latest build for Windows, macOS, or Linux from the Releases page.
Already using Anki? Export your collection as a .colpkg (or a deck as
.apkg) from Anki's own File → Export menu, then import it into Synapse —
no conversion step, no data loss.
Bug reports, feature requests, and pull requests are welcome. Start with
CONTRIBUTING.md for setup, the dev workflow, and PR
expectations, and docs/ARCHITECTURE.md for how the
codebase is laid out:
crates/ Rust core: core, db, scheduler, ankifmt, search, media, render, plugin
apps/desktop/ Tauri shell (src-tauri) + React frontend (src)
packages/ Shared TS: ipc-types (generated), ui-tokens, plugin-sdk
fixtures/ Real .apkg/.colpkg samples + golden scheduler vectors
docs/ Architecture & ADRs
Synapse is an independent project and is not affiliated with, endorsed by, or sponsored by Ankitects Pty Ltd. "Anki" is a trademark of Ankitects Pty Ltd.