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Data & Storage

Lightweight, AOT-compatible data libraries that run everywhere .NET does: a document database over twenty backends, a geospatial database, a two-way sync engine, and a key/value store abstraction.

Document DB

A schema-free JSON document store on 20 databases — from SQLite to Cosmos DB

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Turn the database you already run into a schema-free document store: save whole object graphs, query them with LINQ, and never write a migration. One API across SQLite, PostgreSQL, SQL Server, Cosmos DB, MongoDB and fifteen more.

LINQ over nested object graphs, no migrations
Vector, full-text and spatial search on native indexes
Temporal history, field encryption and a transactional outbox
Orleans, Aspire, REST, MCP and an admin UI

SQLite SQLCipher PostgreSQL CockroachDB SQL Server MySQL MariaDB Oracle DuckDB Azure Cosmos DB MongoDB Amazon DocumentDB Amazon DynamoDB Azure Table Storage Redis RavenDB Google Firestore LiteDB IndexedDB Firestore Mobile

Spatial

A dependency-free geospatial database on SQLite R*Tree

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SQLite R*Tree indexing combined with custom C# geometry algorithms for fast spatial queries. No SpatiaLite, no NetTopologySuite — just SQLite and math.

Geometry types and algorithms
R*Tree-indexed spatial queries
Pre-built datasets
Geofencing

Data Sync

Reliable, bidirectional JSON record sync with an HTTP backend

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A background-capable sync engine between your app and an HTTP backend. A persistent outbox queues creates, updates and deletes; an inbox pulls cursor-based deltas; platform-tier transports drain both.

Background NSURLSession on iOS, foreground service on Android
Coalesced batching, tombstones and soft-delete predicates
Conflict resolution and exponential-backoff retries
Custom transports and sync interceptors

Stores

One key/value API over Preferences, Secure Storage and browser storage

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Persist class properties across sessions with a single line. Swap between Preferences, Secure Storage, Local Storage and more, all behind the same API.

Preferences and Secure Storage
Local and Session Storage on Blazor
Persistent services that save their own properties
Custom stores