Comparison

Dapper vs Diesel

On the evidence we track, Diesel leads this comparison with a composite score of 70/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Dapper full profile →Diesel full profile →

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Dapper52

★Diesel70

Attribute comparison across 2 tools
Attribute	Dapper	DieselLeader
Vioscale score	52 / 100low · 38%updating	70 / 100low · 43%updating
Pricing
Free tierpricing.free_tier	-	✓
Modelpricing.model	-	open_source
Price levelpricing.price_level	-	free
Security
Scorecardsecurity.scorecard	-	6.2
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=dapper&per_page=100 · Last 12m: 0	Count: 6 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=diesel&per_page=100 · Last 12m: 4 · Max severity: CRITICAL
Reliability
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	477	3,691
Github starsadoption.github_stars	18,373	14,161
Activity
Commits last 30dactivity.commits_last_30d	6	100
Release
Cadence daysrelease.cadence_days	26	33
Historyrelease.history	17 items	20 items
License
Spdxlicense.spdx	-	Apache-2.0
Language
Primarylanguage.primary	C#	Rust

Score

Vioscale score

Dapper52 / 100low · 38%updating

Diesel70 / 100low · 43%updating

Pricing

Free tier

Dapper–

Diesel✓

Model

Dapper–

Dieselopen_source

Price level

Dapper–

Dieselfree

Security

Scorecard

Dapper–

Diesel6.2

Vulnerabilities

DapperCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=dapper&per_page=100 · Last 12m: 0

DieselCount: 6 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cargo&package_name=diesel&per_page=100 · Last 12m: 4 · Max severity: CRITICAL

Reliability

Status page

Dapper✓

Diesel–

Adoption

Dependent repos

Dapper477

Diesel3,691

Github stars

Dapper18,373

Diesel14,161

Activity

Commits last 30d

Dapper6

Diesel100

Release

Cadence days

Dapper26

Diesel33

History

Dapper17 items

Diesel20 items

License

Spdx

Dapper–

DieselApache-2.0

Language

Primary

DapperC#

DieselRust

Capabilities

Feature-by-feature on the axes that matter for orm & database tools. “-” means undocumented, not absent.

Capability comparison for ORM & Database Tools
Capability	Dapper	Diesel
Core
Type-safe queries	-	✓
Schema migrations	-	✓
Relations / joins API	✓	✓
Languages	C# / .NET (all TFMs)	Rust
Modelling
Schema-first modelling	-	✓
Flexibility
Raw SQL escape hatch	✓	✓
Portability
Multiple database backends	✓	✓
Ops
Connection pooling	-	✗
DX
Data browser / studio	-	✗

Core

Type-safe queries

Dapper-

Diesel✓

Schema migrations

Dapper-

Diesel✓

Relations / joins API

Dapper✓

Diesel✓

Languages

DapperC# / .NET (all TFMs)

DieselRust

Modelling

Schema-first modelling

Dapper-

Diesel✓

Flexibility

Raw SQL escape hatch

Dapper✓

Diesel✓

Portability

Multiple database backends

Dapper✓

Diesel✓

Ops

Connection pooling

Dapper-

Diesel✗

Data browser / studio

Dapper-

Diesel✗

What each one is

The product in its own terms, so the numbers below have context.

Dapper

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

Diesel

Leader

An open-source object-relational mapping and query builder library for Rust that enables compile-time verification of database interactions and supports multiple database backends through composable query abstractions.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Dapper

Pricing not documented yet.

Diesel

Leader

Open sourceFree tier

as of 2026-08-14verify ↗

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.