Open-source alternatives to FreeSql

Entity Framework Core is an object-relational mapper that enables developers to interact with database systems using strongly-typed code. It serves as a comprehensive data access framework, providing a unified interface for mapping application objects to relational and non-relational database schemas while managing the lifecycle of data operations through a central context. The project distinguishes itself through a provider-based architecture that decouples core data access logic from specific database engines, allowing for consistent interaction across diverse storage systems. It features a

Sea-ORM is an asynchronous SQL object-relational mapper and database toolkit for mapping relational tables to strongly typed objects. It provides a relational database mapper for performing CRUD operations across MySQL, PostgreSQL, and SQLite, and includes a programmatic dynamic query builder for constructing complex SQL statements. The project distinguishes itself by providing a GraphQL schema generator that transforms database entities into typed schemas with built-in pagination and filters. It also features a dedicated database migration tool for defining and applying versioned schema chan

Dapper is a lightweight object-relational mapper for .NET that functions as a high-performance data access library. It operates by extending standard database connection interfaces, allowing developers to execute raw SQL queries while automating the mapping of database results to strongly-typed objects. The library distinguishes itself through its use of runtime code generation, which creates high-performance instructions to map database rows to object properties with minimal overhead. It provides flexible data retrieval options, supporting both memory-buffered loading for speed and row-by-ro

Bun is a type-safe object relational mapper for Go that prioritizes SQL-first query construction and result mapping. It functions as a programmable SQL query builder, a database connection manager, and a tool for mapping database tables to Go structs. The project distinguishes itself through a multi-dialect SQL support system, allowing a single codebase to interact with different database engines via a consistent interface. It includes a built-in database observability tool for query interception, distributed tracing, and logging, as well as a schema migration tool for versioning structural c

TypeORM is an object-relational mapper for TypeScript and JavaScript that bridges the gap between object-oriented application code and relational database tables. It provides a comprehensive data persistence layer that allows developers to define database entities using class decorators or configuration objects, enabling seamless interaction with data through object-oriented patterns. The project distinguishes itself through a flexible architecture that supports both the data mapper and repository patterns, alongside a fluent query builder that translates high-level method calls into platform

CodeIgniter is a PHP web framework built on the Model-View-Controller pattern, designed for building full-stack web applications. It provides a lightweight toolkit with minimal configuration, organizing application logic into controllers, models, and views for clean separation of concerns. The framework includes a fluent query builder for constructing SQL statements programmatically, PSR-4 autoloading with namespace mapping, and a service-based dependency injection container for managing shared class instances. The framework distinguishes itself through its comprehensive set of built-in tools

Sequel is a relational database toolkit for Ruby that provides object-relational mapping, a fluent SQL query builder, and schema migration capabilities. It maps database tables to Ruby classes with support for associations, validations, lifecycle hooks, and eager loading, offering a comprehensive ORM layer for building data-centric applications. Sequel distinguishes itself through a plugin-based extension architecture that allows composable customization of models, databases, and datasets without relying on deep inheritance hierarchies. It includes a thread-safe connection pool with support f

This project is a Java-based object-relational mapping framework that utilizes the active record pattern to simplify database interactions. It provides a comprehensive data access layer that binds database tables directly to application objects, enabling developers to perform CRUD operations, manage complex entity relationships, and execute queries through a fluent, type-safe interface. Designed for integration with Spring Boot, the framework abstracts database complexities while maintaining support for native compilation and asynchronous execution. The framework distinguishes itself through

bknd is a self-hosted backend-as-a-service platform and serverless backend framework that provides an integrated environment for managing databases, authentication, and file storage. It functions as a headless CMS and a portable API engine designed to run across various JavaScript runtimes, including Node.js, Bun, Cloudflare Workers, and AWS Lambda. The project distinguishes itself through a combination of schema-driven API generation and a built-in database management UI. It enables the definition of data structures either programmatically via a type-safe API or visually through an administr

FastHTML is a full-stack Python web framework designed for building interactive web applications using pure Python. It functions as an HTMX integration framework and a Python HTML domain-specific language, allowing developers to generate HTML structures using native objects and functions instead of external templating files. The framework is distinguished by its native support for real-time bidirectional communication via WebSockets and Server-Sent Events, enabling server-side updates to be pushed to the browser without full page reloads. It further integrates identity management through OAut

Mikro-ORM is a TypeScript-based object-relational mapping system that provides a unified persistence layer for Node.js applications. It translates TypeScript entities into relational or document-based database schemas, supporting a variety of engines including PostgreSQL, MySQL, MariaDB, MS SQL Server, SQLite, and MongoDB. The project implements the data mapper pattern to decouple in-memory domain models from the database persistence layer. It utilizes a unit of work pattern to track entity changes in memory and commit them in a single coordinated database transaction. The library covers com

pg is a PostgreSQL object-relational mapper (ORM) for Go that maps Go structs to database tables and provides a fluent query builder for constructing SQL statements programmatically. At its core, it automatically generates CREATE TABLE statements from Go struct definitions using struct tags and naming conventions, and builds queries through method chaining with placeholder-based parameter binding to prevent SQL injection. The library distinguishes itself through relation-aware join generation that automatically constructs JOIN clauses for has-one, has-many, many-to-many, and polymorphic assoc

MyBatis-Flex is an object-relational mapping framework for Java that extends MyBatis with a fluent API and automated CRUD operations. It provides a data access suite featuring an automatic CRUD data mapper, a type-safe SQL query builder, and a row-based query engine for manipulating records without predefined entity classes. The framework includes a multi-dialect SQL translator that converts generated syntax across different database engines, such as MySQL, PostgreSQL, and Oracle. It further distinguishes itself by offering annotation-free entity mapping using runtime reflection and naming co

Drift is a type-safe SQL persistence library and relational mapper that provides a structured way to map database tables to classes and execute SQL queries with build-time validation. It functions as a type-safe query builder and a wrapper for SQLite and PostgreSQL, eliminating manual result set parsing by binding query outputs to native objects. The project distinguishes itself through a build-time code generation system that produces type-safe APIs and validates raw SQL statements against database versions before execution. It features reactive query streaming, which transforms SQL queries

Gorp is a lightweight object-relational mapper for Go that binds structs to relational database tables. It functions as a relational data mapper and SQL dialect abstraction layer, automating the translation between application data and relational rows. The project provides a translation layer that generates vendor-specific SQL for PostgreSQL, MySQL, SQLite, Oracle, and SQL Server. It distinguishes itself by implementing optimistic locking via version columns to prevent concurrent update conflicts and providing a database schema generator to create tables and indexes from object definitions.

SQLAlchemy is a comprehensive Python SQL toolkit and object-relational mapper that provides a full suite of tools for interacting with relational databases. It serves as a foundational layer for database connectivity, offering both a high-level object-oriented interface for data persistence and a programmatic SQL expression language for constructing complex, dialect-agnostic queries. The project distinguishes itself through its sophisticated unit of work persistence, which coordinates atomic transactions and tracks object state changes to minimize redundant database operations. It provides a

Anko is an Android Kotlin library designed to simplify application development through a set of domain-specific languages and extensions. It functions as a programmatic UI DSL, an SQLite wrapper, an SDK utility, and an asynchronous framework. The project provides a declarative layout system that allows developers to build user interfaces through code instead of static XML markup. It distinguishes itself by offering a fluent database layer that eliminates manual cursor management and a concurrency system that uses weak references to prevent memory leaks in activities. The library covers broad

PostgREST is a tool that automatically transforms a PostgreSQL database schema into a production-ready RESTful API. It serves as a database access layer and query engine that maps HTTP requests directly to SQL queries, providing a low-code interface for executing create, read, update, and delete operations without requiring manual boilerplate code. The project distinguishes itself by using schema-driven API generation and metadata-based discovery to expose database tables as navigable resources. It extends standard CRUD capabilities through the execution of custom and templated SQL, a plugin-

linq2db is a type-safe object-relational mapper that translates LINQ expressions into optimized SQL queries for multiple database providers. It functions as a database mapper that links classes to tables and includes a SQL query builder and a command-line schema tool for generating data classes from existing databases. The project provides high-performance bulk data processing for inserting and loading large volumes of records via batch or binary copy methods. It also supports advanced SQL operations, including window functions, common table expressions for recursive hierarchical querying, an

This project is a header-only C++ library that provides an object-relational mapping layer for SQLite databases. It enables developers to map native class structures directly to database tables, facilitating type-safe data persistence and retrieval without the need for raw query strings. The library distinguishes itself through the use of template-based metaprogramming, which allows for compile-time schema mapping and query construction. By utilizing a fluent interface, it translates method calls into optimized database statements, while its support for prepared statement caching minimizes pa

LitePal is an object-relational mapping library and SQLite database wrapper for Android applications. It replaces raw SQL queries with a fluent interface and object mapping to simplify local data persistence and database management. The project provides a specialized system for automatically synchronizing database schemas based on model definitions to handle version updates. It also includes a storage solution for securing sensitive data through configurable field-level encryption. The library covers broad data storage and synchronization capabilities, including atomic transaction support, m

Pony is a Python object-relational mapper that maps classes to relational database tables using an object-oriented interface. It serves as a relational database toolkit providing the means to manage database transactions, identity mapping, and the lazy loading of related records. The project is distinguished by a SQL query translator that converts Python generator expressions into optimized SQL queries by analyzing the abstract syntax tree. It also includes a visual database schema designer for creating entity-relationship diagrams to automatically generate and synchronize relational database

Yii is a full-stack PHP web framework and component-based system designed for building dynamic websites and RESTful services. It operates as an MVC application framework that separates business logic from the user interface and includes a built-in object-relational mapper for interacting with databases. The project provides a comprehensive command line toolset for project bootstrapping, automated code generation, and the execution of background tasks. It utilizes a component-based architecture and a service locator to manage dependency injection and object lifecycles. The framework covers a

Nodal is a Node.js API framework designed for building data-centric web services and JSON APIs using structured data models. It functions as an object-relational mapper that allows for the querying and manipulation of database records through objects instead of raw SQL queries. The project includes a database migration tool for tracking and applying bi-directional schema changes to maintain data integrity across different environments. It also features a command line interface for automating the registration and configuration of remote hosting environments. The framework provides capabilitie

GORM is a developer-focused object-relational mapping library for Go that provides a comprehensive data persistence framework. It serves as a database access layer, allowing developers to map application structures to database tables and perform CRUD operations using a fluent, type-safe query builder instead of writing raw SQL. The library distinguishes itself through its association-aware persistence, which automatically tracks and synchronizes complex entity relationships during database operations. It utilizes a driver-agnostic interface to maintain consistent behavior across various stora

Flask-SQLAlchemy is a relational database toolkit that integrates the SQLAlchemy object-relational mapper into web applications. It serves as a database session manager and schema toolkit, providing the necessary infrastructure to define data models and execute queries within a request lifecycle. The project is distinguished by its multi-database routing engine, which uses bind-keys to map different models to multiple distinct database engines. It also includes a SQL query auditing tool that captures and logs executed statements and timing data for a single request to identify performance bot

Sequelize is an object-relational mapping library that provides a unified interface for managing relational data through code. By implementing the Active Record pattern, it maps database tables to application objects, allowing developers to perform standard create, read, update, and delete operations using high-level method calls. The library abstracts complex database interactions by translating these calls into optimized, engine-specific SQL statements, ensuring consistent behavior across different database systems. The project distinguishes itself through a comprehensive suite of tools for