# Dapper vs MikroORM

**Leader by vioscaleAI score:** MikroORM

| Attribute | Dapper | MikroORM |
|---|---|---|
| **vioscaleAI score** | 49.8 (33% (low)) | 69.2 (79% (high)) |
| activity.commits_last_30d | 3 | 100 |
| adoption.dependent_repos | 477 | 914 |
| adoption.github_stars | 18,402 | 9,251 |
| adoption.package_downloads_weekly | - | 943,729 |
| content.faq | - | `[{"answer":"An object-relational mapping library for Node.js that uses proven patterns (Data Mapper, Unit of Work, Identity Map) to provide type-safe database access with minimal boilerplate. Supports multiple SQL and NoSQL databases with features including schema versioning, entity lifecycle hooks, and flexible data loading strategies. It is indexed under ORM & Database Tools.","source":"https://mikro-orm.io","question":"What is MikroORM?","confidence":0.6},{"answer":"MikroORM is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://mikro-orm.io","question":"Is MikroORM free to use?","confidence":0.6},{"answer":"MikroORM supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://mikro-orm.io","question":"What platforms does MikroORM support?","confidence":0.6},{"answer":"Yes. MikroORM can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://mikro-orm.io","question":"Can MikroORM be self-hosted?","confidence":0.6},{"answer":"Yes. MikroORM is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/mikro-orm/mikro-orm","question":"Is MikroORM open source?","confidence":0.99}]` |
| deployment.options | - | `{"cloud":true,"self_hosted":true}` |
| description.long | A micro-ORM for .NET that extends ADO.NET connections to execute SQL queries and stored procedures, supporting both synchronous and asynchronous operations with features for object mapping, dynamic SQL building, and multi-result set processing. | An object-relational mapper that enables type-safe database interactions with support for multiple database systems including PostgreSQL, MySQL, SQLite, MongoDB, and MSSQL. |
| features.capabilities | `{"raw_sql":true,"multi_db":true,"languages":"C# / .NET (all TFMs)","relations":true}` | `{"raw_sql":true,"multi_db":true,"languages":"TypeScript, JavaScript (Node.js)","relations":true,"migrations":true,"schema_first":true,"type_safe_queries":true}` |
| integrations.count | - | 10 |
| integrations.list | - | `[{"name":"Kysely"},{"name":"Shopify"},{"name":"Nest.js"},{"name":"Express"},{"name":"NextJS"},{"name":"Electron.js"},{"name":"Koa"},{"name":"Elysia.js"},{"name":"Inversify"},{"name":"Accounts.js"},{"name":"GraphQL"},{"name":"Bun"},{"name":"RealWorld"},{"name":"Nest"}]` |
| language.primary | C# | TypeScript |
| license.spdx | - | MIT |
| platform.support | - | `{"cli":true}` |
| pricing | - | `{"type":"open_source","freeTier":true,"sourceUrl":"https://mikro-orm.io","retrievedAt":"2026-08-14T08:37:11.055Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | - | open_source |
| pricing.price_level | - | free |
| pricing.transparent | - | yes |
| release.cadence_days | 26 | 4 |
| release.history | `[{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.89","date":"2026-09-23T04:33:15Z","type":"stable","version":"2.1.89"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.86","date":"2026-09-12T12:30:19Z","type":"stable","version":"2.1.86"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.79","date":"2026-05-16T20:40:41Z","type":"stable","version":"2.1.79"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.72","date":"2026-03-06T07:16:11Z","type":"stable","version":"2.1.72"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.66","date":"2025-02-06T12:26:12Z","type":"stable","version":"2.1.66"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.44","date":"2024-04-12T12:42:44Z","type":"stable","version":"2.1.44"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.42","date":"2024-04-12T10:23:44Z","type":"stable","version":"2.1.42"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.37","date":"2024-03-14T15:17:02Z","type":"stable","version":"2.1.37"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.35","date":"2024-03-06T15:08:18Z","type":"stable","version":"2.1.35"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.28","date":"2024-01-02T16:13:39Z","type":"stable","version":"2.1.28"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.24","date":"2023-11-23T09:30:26Z","type":"stable","version":"2.1.24"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.21","date":"2023-11-11T09:07:29Z","type":"stable","version":"2.1.21"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.15","date":"2023-10-19T12:52:19Z","type":"stable","version":"2.1.15"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.11","date":"2023-10-13T06:26:06Z","type":"stable","version":"2.1.11"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.4","date":"2023-09-13T20:52:44Z","type":"stable","version":"2.1.4"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.1.1","date":"2023-09-12T15:17:35Z","type":"stable","version":"2.1.1"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.0.151","date":"2023-08-18T09:51:46Z","type":"stable","version":"2.0.151"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.0.143","date":"2023-06-20T12:43:19Z","type":"stable","version":"2.0.143"},{"url":"https://github.com/DapperLib/Dapper/releases/tag/2.0.138","date":"2023-06-09T15:32:01Z","type":"stable","version":"2.0.138"}]` | `[{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.2.5","date":"2026-10-09T12:30:43Z","type":"stable","version":"v7.2.5"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.2.4","date":"2026-10-06T15:17:36Z","type":"stable","version":"v7.2.4"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v6.6.17","date":"2026-10-02T11:48:27Z","type":"stable","version":"v6.6.17"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.2.3","date":"2026-09-30T12:38:10Z","type":"stable","version":"v7.2.3"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.2.2","date":"2026-09-28T07:32:52Z","type":"stable","version":"v7.2.2"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.2.1","date":"2026-09-19T10:20:19Z","type":"stable","version":"v7.2.1"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.2.0","date":"2026-09-07T07:06:07Z","type":"stable","version":"v7.2.0"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.15","date":"2026-09-03T08:10:30Z","type":"stable","version":"v7.1.15"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.14","date":"2026-08-26T18:52:12Z","type":"stable","version":"v7.1.14"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.13","date":"2026-08-20T13:23:52Z","type":"stable","version":"v7.1.13"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.12","date":"2026-08-17T11:22:27Z","type":"stable","version":"v7.1.12"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.11","date":"2026-08-06T10:31:32Z","type":"stable","version":"v7.1.11"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.10","date":"2026-08-04T09:53:13Z","type":"stable","version":"v7.1.10"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.9","date":"2026-07-30T19:49:55Z","type":"stable","version":"v7.1.9"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.8","date":"2026-07-28T15:16:42Z","type":"stable","version":"v7.1.8"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.7","date":"2026-07-17T14:00:21Z","type":"stable","version":"v7.1.7"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v6.6.16","date":"2026-07-17T13:55:34Z","type":"stable","version":"v6.6.16"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.6","date":"2026-07-13T13:17:56Z","type":"stable","version":"v7.1.6"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v7.1.5","date":"2026-06-26T14:48:34Z","type":"stable","version":"v7.1.5"},{"url":"https://github.com/mikro-orm/mikro-orm/releases/tag/v6.6.15","date":"2026-06-17T08:40:22Z","type":"stable","version":"v6.6.15"}]` |
| reliability.status_page | yes | - |
| security.scorecard | - | 6.6 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=dapper&per_page=100","last_12m":0,"max_severity":null}` | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40mikro-orm%2Fcore&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` |

## Capabilities (ORM & Database Tools)

| Capability | Dapper | MikroORM |
|---|:--:|:--:|
| **Core** |  |  |
| Type-safe queries | - | ✓ |
| Schema migrations | - | ✓ |
| Relations / joins API | ✓ | ✓ |
| Languages | C# / .NET (all TFMs) | TypeScript, JavaScript (Node.js) |
| **Modelling** |  |  |
| Schema-first modelling | - | ✓ |
| **Flexibility** |  |  |
| Raw SQL escape hatch | ✓ | ✓ |
| **Portability** |  |  |
| Multiple database backends | ✓ | ✓ |
| **Ops** |  |  |
| Connection pooling | - | - |
| **DX** |  |  |
| Data browser / studio | - | - |

*Source: vioscaleAI. Generated 2026-10-16T20:38:17.559Z. "-" = undocumented, not absent.*