Comparison

Dapper vs SQLAlchemy

On the evidence we track, SQLAlchemy leads this comparison with a composite score of 75/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Dapper full profile →SQLAlchemy full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

Dapper50

★SQLAlchemy75

Attribute comparison across 2 tools
Attribute	Dapper	SQLAlchemyLeader
vioscaleAI score	50 / 100low · 33%	75 / 100high · 78%
Pricing
Free tierpricing.free_tier	-	✓
Modelpricing.model	-	open_source
Price levelpricing.price_level	-	free
Transparentpricing.transparent	-	✓
Integrations
Countintegrations.count	-	6
Security
Scorecardsecurity.scorecard	-	5.2
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=dapper&per_page=100 · Last 12m: 0	Count: 3 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=sqlalchemy&per_page=100 · Last 12m: 0 · Max severity: CRITICAL
Reliability
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	477	53,487
Github starsadoption.github_stars	18,402	12,245
Package downloads weeklyadoption.package_downloads_weekly	-	9,800,000
Stackoverflow questionsadoption.stackoverflow_questions	-	34,000
Activity
Commits last 30dactivity.commits_last_30d	3	82
Release
Cadence daysrelease.cadence_days	26	8
Historyrelease.history	19 items	20 items
License
Spdxlicense.spdx	-	MIT
Language
Primarylanguage.primary	C#	Python
Market
Availabilitymarket.availability	-	Available worldwide
Content
Faqcontent.faq	-	8 items

Score

vioscaleAI score

Dapper50 / 100low · 33%

SQLAlchemy75 / 100high · 78%

Pricing

Free tier

Dapper–

SQLAlchemy✓

Model

Dapper–

SQLAlchemyopen_source

Price level

Dapper–

SQLAlchemyfree

Transparent

Dapper–

SQLAlchemy✓

Integrations

Count

Dapper–

SQLAlchemy6

Security

Scorecard

Dapper–

SQLAlchemy5.2

Vulnerabilities

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

SQLAlchemyCount: 3 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=sqlalchemy&per_page=100 · Last 12m: 0 · Max severity: CRITICAL

Reliability

Status page

Dapper✓

SQLAlchemy–

Adoption

Dependent repos

Dapper477

SQLAlchemy53,487

Github stars

Dapper18,402

SQLAlchemy12,245

Package downloads weekly

Dapper–

SQLAlchemy9,800,000

Stackoverflow questions

Dapper–

SQLAlchemy34,000

Activity

Commits last 30d

Dapper3

SQLAlchemy82

Release

Cadence days

Dapper26

SQLAlchemy8

History

Dapper19 items

SQLAlchemy20 items

License

Spdx

Dapper–

SQLAlchemyMIT

Language

Primary

DapperC#

SQLAlchemyPython

Market

Availability

Dapper–

SQLAlchemyAvailable worldwide

Content

Faq

Dapper–

SQLAlchemy8 items

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	SQLAlchemy
Core
Type-safe queries	-	✓
Schema migrations	-	✗
Relations / joins API	✓	✓
Languages	C# / .NET (all TFMs)	Python
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-

SQLAlchemy✓

Schema migrations

Dapper-

SQLAlchemy✗

Relations / joins API

Dapper✓

SQLAlchemy✓

Languages

DapperC# / .NET (all TFMs)

SQLAlchemyPython

Modelling

Schema-first modelling

Dapper-

SQLAlchemy✓

Flexibility

Raw SQL escape hatch

Dapper✓

SQLAlchemy✓

Portability

Multiple database backends

Dapper✓

SQLAlchemy✓

Ops

Connection pooling

Dapper-

SQLAlchemy✓

Data browser / studio

Dapper-

SQLAlchemy✗

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

SQLAlchemy

Leader

A Python-based database toolkit offering both an Object-Relational Mapper for domain-driven development and a SQL construction system for direct database interaction, supporting multiple database backends.

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.

SQLAlchemy

Leader

Open source

as of 2026-10-15verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Dapper	SQLAlchemy
Self-hostedDeployment	-	✓

Deployment

Self-hosted

Dapper–

SQLAlchemy✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Dapper

Not documented yet.

SQLAlchemy

Leader

6 total

PostgreSQL
MySQL
Oracle
SQL Server
SQLite
Alembic

Independently observed

Still deciding?

Dapper or SQLAlchemy: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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