Jig

A template engine purpose-built for code generation. Fork of Edge.

What is Jig?

Jig is a fork of Edge — the template engine behind AdonisJS — purpose-built for code generation. It strips away HTML escaping and HTML-specific helpers, adds implicit indentation control and filter syntax, and keeps everything else that makes Edge great: components, slots, partials, and full JavaScript expressions.

If you know JavaScript, you know Jig. Use familiar control flow (@if, @each, @component), interpolation ({{ }}), and add custom filters for transformations.

Key Differences from Edge

• No HTML escaping — {{ value }} outputs raw values without any escaping
• No HTML helpers — html.attrs, html.classNames, nl2br, and other HTML-specific utilities are removed
• Filter syntax — {{ mode :: expr }} applies registered filters to expressions
• No safe() function — Unnecessary since all output is raw

Quick Example

Generate TypeScript interfaces from a data structure:

export interface {{ interfaceName }} {
  @each(field in fields)
    {{ field.name }}: {{ field.type }};
  @end
}

With data:

{
  "interfaceName": "User",
  "fields": [
    { "name": "id", "type": "number" },
    { "name": "email", "type": "string" }
  ]
}

Outputs:

export interface User {
  id: number;
  email: string;
}

Installation

Using npm:

npm i jig

Using bun:

bun add jig

Documentation

Full documentation is available at https://jig.saulo.engineer

Built on Edge

Jig is forked from Edge, the template engine created by the AdonisJS team. We thank them for building such a solid foundation.

License

MIT