JasperFx/marten

Health v2 · maintenance only

Adoption not part of the score

3448 stars · 556 forks observed · 2026-08-28

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

Marten is a .NET library that turns PostgreSQL into a fully featured transactional document database using its JSON support, plus an ACID-compliant event store with user-defined projections. It lets .NET developers build event-sourced systems without running a separate database engine.

Use cases

• use postgres as a document database in .net
• build an event-sourced application with projections
• store and query json documents with acid transactions
• replace a separate document db with postgres
• implement event store with streams in dotnet
• persist domain events and rebuild read models

When to choose

• you're a .NET team already running PostgreSQL and want document storage or event sourcing without new infrastructure
• you need ACID guarantees across document writes and event streams
• you want projections to build read-side views from event streams

When to avoid

• you need a standalone document database independent of PostgreSQL
• your team doesn't use .NET
• you need multi-master replication or features specific to dedicated document stores like MongoDB

Facets

library · maturity active

orm database database-driver serialization databases backend web-development developer-tools dotnet windows cloud postgresql document-database event-sourcing event-store jsonb csharp acid projections linux macos docker

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markdown · JSON · MCP: product_card(name="JasperFx/marten")