regenerator - Source transformer enabling ECMAScript 6 generator functions in JavaScript-of-today.

•    Javascript

Source transformer enabling ECMAScript 6 generator functions (yield) in JavaScript-of-today (ES5)

gulp-babel - Gulp plugin for Babel

•    Javascript

Issues with the output should be reported on the Babel issue tracker.See the Babel options, except for sourceMap and filename which is handled for you.

recast - JavaScript syntax tree transformer, nondestructive pretty-printer, and automatic source map generator

•    Javascript

In less poetic terms, Recast exposes two essential interfaces, one for parsing JavaScript code (require("recast").parse) and the other for reprinting modified syntax trees (require("recast").print). See ast-types (especially the def/core.js) module for a thorough overview of the ast api.

Sourcery - Meta-programming for Swift, stop writing boilerplate code.

•    Swift

Sourcery is a code generator for Swift language, built on top of Apple's own SourceKit. It extends the language abstractions to allow you to generate boilerplate code automatically. It's used in over 8,000 projects on both iOS and macOS and it powers some of the most popular and critically-acclaimed apps you have used. Its massive community adoption was one of the factors that pushed Apple to implement derived Equality and automatic Codable conformance. Sourcery is maintained by a growing community of contributors.

gqlgen - go generate based graphql server library

•    Go

This is a library for quickly creating strictly typed graphql servers in golang. See the docs for a getting started guide.

NSwag - The Swagger/OpenAPI toolchain for .NET, Web API and TypeScript.

•    CSharp

NSwag is a Swagger/OpenAPI 2.0 and 3.0 toolchain for .NET, .NET Core, Web API, ASP.NET Core, TypeScript (jQuery, AngularJS, Angular 2+, Aurelia, KnockoutJS, and more) and other platforms, written in C#. The Swagger specification uses JSON and JSON Schema to describe a RESTful web API. The NSwag project provides tools to generate Swagger specifications from existing ASP.NET Web API controllers and client code from these Swagger specifications. The project combines the functionality of Swashbuckle (Swagger generation) and AutoRest (client generation) in one toolchain. This way a lot of incompatibilites can be avoided and features which are not well described by the Swagger specification or JSON Schema are better supported (e.g. inheritance, enum and reference handling). The NSwag project heavily uses NJsonSchema for .NET for JSON Schema handling and C#/TypeScript class/interface generation.

rust-bindgen - Automatically generates Rust FFI bindings to C (and some C++) libraries.

•    C++

impl period has been started! Join us at Gitter.im. bindgen automatically generates Rust FFI bindings to C (and some C++) libraries.

cranelift - Cranelift code generator (formerly, Cretonne)

•    Rust

Cranelift is a low-level retargetable code generator. It translates a target-independent intermediate representation into executable machine code. For more information, see the documentation.

graphqlgen - ⚙️ Generate type-safe resolvers based upon your GraphQL Schema

•    TypeScript

Programming in type-safe environments can contribute toward great confidence in your code's integrity. graphqlgen aims to leverage the GraphQL type system to make your resolvers completely type-safe. This is important because resolvers are the heart of any graphql service and yet the hardest to statically type due to their dynaminism. Edit ./my-app/src/schema.graphql to your heart's content.

grunt-babel - Grunt plugin for Babel

•    Javascript

Issues with the output should be reported on the Babel issue tracker.See the Babel options, except for filename which is handled for you.

hack-codegen - Library to programatically generate Hack code and write it to signed files

•    Hack

Hack Codegen is a library for easily generating Hack code and writing it into signed files that prevent undesired modifications. The idea behind writing code that writes code is to raise the level of abstraction and reduce coupling. You can use your own way of describing a problem and generate the corresponding code. E.g. see examples/dorm. In this example, we use a schema to describe the structure of the data, and we use Hack Codegen to write the matching code. The DORM example shows how to use the different aspects of the code generation in a simplified real-life example. The included tests also exemplify the usage of the different components.

Perfect Storm

Perfect Storm started life as a code generation utility. It now includes Model Components, Rule Engine details and a class loader. It requires .NET 4.0 to be installed.

Yet Another Code Generator (YACGEN)

YACGEN is a code generator that creates output based on database schema

CustomTemplating - Template Text Transformations with custom T4 host

•    CSharp

CustomTemplating allows the usage of the Text Template Transformation Toolkit (T4) from custom applications, without VS IDE as Host. It simplifies the start of the text transformation process and allow to pass arguments from the application to the template transformation process.

LLBLGen ANGTE (ASP.Net GUI Templates Extended)

LLBLGen ANGTE (ASP.Net GUI Templates Extended) makes possible to use LLBLGen template system to generate a reasonable ASP.Net GUI that you can use as the base of your project or just as a prototyping tool. It generates APS.Net code with C# as code behind using .Net 2.0

Visual Studio 2010 PowerShell Code Generator

•    CSharp

Brings rich PowerShell functionalities into VS Templating. You can access the file system, the registry, and many other PowerShell features. You can also run PowerShell cmdlets, import modules and more.

DAEE (DataAccess extended from Enterprise Library 3.1)

•    CSharp

Based on Enterprise Library 3.1, DAEE enables developers to access databases faster and safer. DAEE supports multiple database sources including ACCESS/ SQLSERVER2000/ SQLSERVER2005/ ODBC/ ORACLE/ EXCEL etc. You can configure connection strings in WEB.CONFIG/ APP.CONFIG throug...

Sculpture - Model Your Life

•    DotNet

Sculpture is a .NET open source Model-Driven Development code generation framework ideal for creating and managing .NET Enterprise Applications. Sculpture generate deployable components like DAAB, NHibernate, LINQ, CSLA, WCF, Win forms, WPF, Silverlight, ASP.NET, & ASP.NET MVC.

T4 Toolbox

•    CSharp

T4 Toolbox is a set of ready-to-use code generators and T4 extensions for Visual Studio. Quickly build powerful C# or VB templates that generate multiple output files or simply use existing templates for LINQ to SQL, Entity Framework and more.

T4 Unit Test Constructor

•    CSharp

T4 Unit Test Constructor is a Text Transform file that generates complete Unit Testing project based on siblings projects inside a solution.