nhibernate/nhibernate-core
Some data may be outdated — see provenance labels.
NHibernate Object Relational Mapper observed · 2026-09-23
Health v2 · maintenance only
93/100
- Activity 96
- Release rhythm 84
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 41.5
- age_days: 5546
- days_rel: 28
- days_push: 28
- n_releases_24m: 7
Adoption not part of the score
2175 stars · 931 forks observed · 2026-09-23
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
NHibernate is a mature, open source object-relational mapper (ORM) for the .NET framework, actively developed and fully featured. It maps regular C# or VB.NET object models to relational databases, supporting inheritance, components, enums, and complex legacy database scenarios.
Use cases
- map C# domain models to relational database tables
- persist and query objects in a .NET application without writing raw SQL
- generate database schema from domain models
- query entities with LINQ or Criteria API
- work with complex or legacy database schemas from .NET
- manage sessions, transactions, and caching in .NET data access
When to choose
- you need a mature, fully featured ORM for .NET with strong legacy database support
- you want LINQ and Criteria API querying over mapped entities
- your project needs inheritance, components, and enum mapping without special base classes
- you rely on an established community, extensive documentation, and plugin ecosystem
When to avoid
- you prefer a lightweight micro-ORM with minimal abstraction like Dapper
- you want an ORM designed primarily for Entity Framework Core conventions and tooling
- you need a non-.NET platform
- your team is unwilling to learn NHibernate's session and mapping model
Facets
library · maturity stable
orm database caching search-engine databases backend web-development developer-tools dotnet cross-platform windows object-relational-mapper linq-provider criteria-api nuget c-sharp legacy-database-support code-first-mapping linux macos
3 sources
- readme: https://github.com/nhibernate/nhibernate-core · fetched 2026-09-23 · 9a52d74284f2
- homepage: https://nhibernate.info · fetched 2026-08-29 · f2dbdb6bf421
- site_page: https://nhibernate.info/doc/index.html · fetched 2026-08-29 · 5977574f5c8a
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| nhibernate/nhibernate-core | main | 93 |
For agents
markdown · JSON · MCP: product_card(name="nhibernate/nhibernate-core")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem