# Dapper

- **Canonical URI:** https://www.vioscale.ai/software/dapper
- **Category:** ORM & Database Tools
- **Homepage:** https://stackexchange.github.io/Dapper
- **Also known as:** dapper
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:15:32.884Z

## Vioscale score

**52.1 / 100**, confidence 38% (low). Computed 2026-09-01. _(updating — computed under an earlier model version or past its freshness window.)_

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 57.8 | 0.08288888888888889 | 4.8 | ✓ |
| repo_stars | 80.4 | 0.033 | 2.7 | ✓ |
| integrations | 0 | 0.053 | 0 | - |
| dependent_projects | 44.7 | 0.08 | 3.6 | ✓ |
| dev_activity | 26.6 | 0.12 | 3.2 | ✓ |
| release_cadence | 85.6 | 0.067 | 5.7 | ✓ |
| security_posture | 0 | 0.087 | 0 | - |
| package_downloads | 0 | 0.173 | 0 | - |
| security_score | 0 | 0.053 | 0 | - |
| community_qa_activity | 0 | 0.08 | 0 | - |

## About

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.

_Independently observed._

## Capabilities

_The capabilities that matter for ORM & Database Tools. "-" = undocumented, not absent._

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

## Release history

| Version | Date | Type |
|---|---|---|
| [2.1.79](https://github.com/DapperLib/Dapper/releases/tag/2.1.79) | 2026-05-16 | stable |
| [2.1.72](https://github.com/DapperLib/Dapper/releases/tag/2.1.72) | 2026-03-06 | stable |
| [2.1.66](https://github.com/DapperLib/Dapper/releases/tag/2.1.66) | 2025-02-06 | stable |
| [2.1.44](https://github.com/DapperLib/Dapper/releases/tag/2.1.44) | 2024-04-12 | stable |
| [2.1.42](https://github.com/DapperLib/Dapper/releases/tag/2.1.42) | 2024-04-12 | stable |
| [2.1.37](https://github.com/DapperLib/Dapper/releases/tag/2.1.37) | 2024-03-14 | stable |
| [2.1.35](https://github.com/DapperLib/Dapper/releases/tag/2.1.35) | 2024-03-06 | stable |
| [2.1.28](https://github.com/DapperLib/Dapper/releases/tag/2.1.28) | 2024-01-02 | stable |
| [2.1.24](https://github.com/DapperLib/Dapper/releases/tag/2.1.24) | 2023-11-23 | stable |
| [2.1.21](https://github.com/DapperLib/Dapper/releases/tag/2.1.21) | 2023-11-11 | stable |
| [2.1.15](https://github.com/DapperLib/Dapper/releases/tag/2.1.15) | 2023-10-19 | stable |
| [2.1.11](https://github.com/DapperLib/Dapper/releases/tag/2.1.11) | 2023-10-13 | stable |
| [2.1.4](https://github.com/DapperLib/Dapper/releases/tag/2.1.4) | 2023-09-13 | stable |
| [2.1.1](https://github.com/DapperLib/Dapper/releases/tag/2.1.1) | 2023-09-12 | stable |
| [2.0.151](https://github.com/DapperLib/Dapper/releases/tag/2.0.151) | 2023-08-18 | stable |

_… and 2 earlier release(s)._

## Security & compliance


Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=dapper&per_page=100)). A count reflects scale and disclosure, not quality.

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 6 | [link](https://github.com/DapperLib/Dapper/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 18,373 | [link](https://github.com/DapperLib/Dapper) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 477 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2FDapperLib%2FDapper) | 2026-08-26 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | C# | [link](https://github.com/DapperLib/Dapper) | 2026-08-26 | 90% (high) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 26 | [link](https://github.com/DapperLib/Dapper/releases) | 2026-08-26 | 70% (medium) |

### reliability

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| reliability.status_page | yes | [link](https://stackexchange.github.io/status) | 2026-08-03 | 60% (medium) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| 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}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=dapper&per_page=100) | 2026-08-26 | 90% (high) |

---
*Source: Vioscale (https://www.vioscale.ai/software/dapper). Independent, evidence-based software intelligence. Cite the canonical URI.*