Open-source alternatives to Liquid

art-template is a JavaScript templating engine and HTML template compiler that transforms custom syntax and script statements into optimized HTML output. It functions as a precompiled template engine that converts template source into standalone JavaScript functions to render dynamic content from data. The engine features a template inheritance framework that organizes layouts through nesting, blocks, and inclusions to create reusable components across multiple files. It incorporates automatic output sanitization and encoding to prevent cross-site scripting attacks. The system includes capab

EJS is a JavaScript templating engine used to generate HTML by embedding executable JavaScript logic and dynamic data into template files. It functions as both a server-side template processor and a client-side rendering engine, allowing for the creation of dynamic markup in both backend and frontend environments. The engine supports the creation of modular web layouts through partial template inclusion, where smaller reusable components are inserted into parent pages. Users can modify the template syntax by defining custom delimiters to avoid conflicts with other languages. The project cove

Handlebars.js is a JavaScript templating engine used to generate HTML and other text formats by combining static templates with dynamic data. It functions as a logic-less template engine, separating presentation from business logic by restricting the complexity of expressions within templates. The project includes a precompiled template compiler that converts template strings into executable JavaScript functions. This mechanism reduces runtime overhead and improves rendering performance by shifting the compilation process to a build step. The engine provides a custom helper framework for ext

hogan.js is a logic-less template compiler and Mustache templating engine. It transforms static templates into executable JavaScript functions to generate data-driven strings without using conditional or looping logic. The system focuses on precompilation to eliminate parsing overhead during runtime execution. This includes a precompiled template library and a command line interface for converting template files into optimized JavaScript. The engine handles dynamic content generation through template compilation and data rendering. It supports reusable UI fragments via partials and allows fo

Twig is a PHP template engine and compiled rendering library designed to separate business logic from presentation. It functions as a secure template language that generates HTML output by combining dynamic data with reusable layouts. The system emphasizes security through a focus on preventing cross-site scripting attacks via automatic output escaping and content sanitization. To ensure execution efficiency, it compiles templates into optimized PHP code and utilizes a caching mechanism to bypass parsing on subsequent requests. The engine provides comprehensive tools for template composition

Slim is a concise, indentation-based template language and markup engine for generating HTML and XML. Designed for the Ruby ecosystem, it converts shorthand syntax into well-formed documents without the need for traditional closing tags. The engine functions as a multi-engine wrapper, allowing the integration of external rendering engines such as Markdown and Sass within a single template file. It also provides a command line interface for rendering templates and converting them between different markup formats. The system supports dynamic content generation through embedded Ruby logic, incl

Jinja is a text-based templating library for Python designed to generate dynamic content through expressions, control structures, and template inheritance. It functions as a tool for building dynamic HTML, XML, or plain text documents, providing a structured environment for injecting data into templates to create complex outputs from simple sources. The engine distinguishes itself through a sandboxed execution environment that restricts access to system resources and sensitive functions when evaluating untrusted code. It further ensures secure content delivery by employing context-aware outpu

Template.js is a JavaScript template engine designed for parsing and rendering dynamic HTML content in both browser and server-side environments. It functions as a frontend logic library that manages complex user interfaces through data injection, template composition, and extensible rendering logic. The engine distinguishes itself by prioritizing performance through build-time template compilation, which transforms template files into executable modules or functions to minimize runtime overhead. It also incorporates a secure execution sandbox that restricts template logic to a controlled sco

Haml is a Ruby HTML template engine and server-side rendering library. It functions as an HTML markup preprocessor that transforms a concise, indentation-based shorthand syntax into standard HTML and XHTML markup. The system uses hierarchical whitespace instead of explicit closing tags to define the structure of documents, reducing boilerplate during markup authoring. It integrates Ruby logic directly into templates to evaluate conditional statements, process dynamic data, and interpolate values. The engine provides tools for managing element attributes through hashes, controlling output whi

doT is a compiled JavaScript template engine and rendering system used to generate dynamic text and HTML for both browser-based interfaces and Node.js server-side environments. It transforms template strings into executable JavaScript functions to produce text output across different runtime environments. The system focuses on pre-compiling template source files into standalone JavaScript modules at build time. This process eliminates runtime compilation overhead, increases execution speed, and prevents malicious code injection. The engine supports logic-based interpolation using conditional

art-template is a JavaScript template engine and server-side rendering engine. It functions as an abstract syntax tree compiler that translates template source code into executable JavaScript to generate HTML or text output. The engine includes a template inheritance system that allows the definition of base layouts and reusable content blocks. It also provides a template debugging tool that maps syntax and runtime errors to exact line numbers within the source files.

Dustjs is a JavaScript templating engine and asynchronous template renderer. It functions as an isomorphic HTML generator, producing consistent output across both client and server environments. The system employs a logic-less template syntax to separate presentation from business logic, utilizing simple tags for iteration and conditional checks. It supports asynchronous data resolution, allowing the rendering process to pause and resume as external data sources respond. The engine provides capabilities for dynamic HTML generation, server-side rendering, and client-side templating. It utiliz

Pug is a template engine and compiler that transforms whitespace-sensitive shorthand syntax into standard HTML. It functions as both a Node.js template engine for server-side rendering and a browser-side precompiler for client-side templating. The system converts template files into executable JavaScript functions to increase rendering speed. This allows for the generation of full HTML documents by combining dynamic data and logical structures, either on a server or as standalone JavaScript files for execution directly in the browser. The engine manages the translation process through HTML t

Iris is a high-performance web framework and API toolkit for the Go programming language. It provides the infrastructure necessary to build HTTP/2 web applications, REST APIs, and MVC-based websites. The project distinguishes itself through a flexible architectural model that supports multiple isolated application instances within a single process and allows for binary-embedded asset loading to eliminate external filesystem dependencies. It features dynamic router hot-reloading and a pluggable view engine for rendering dynamic HTML content. The framework covers a broad range of capabilities,

Pico is a lightweight PHP content manager and Markdown website generator that functions as a flat-file CMS. It transforms Markdown files into a structured website by using the server file system for URL routing and avoids the use of a relational database for storing content and metadata. The system is distinguished by its support for multilingual website deployment and a static site cache that saves rendered pages as HTML to reduce server load. It employs a Git-based content workflow to synchronize and deploy updates across different environments. The platform covers a broad range of capabil

This project is a web component framework and optimized web markup standard designed for high performance web development. It provides a system for building fast-loading websites using a specialized set of HTML components and scripts, complemented by a web performance validation suite to ensure markup compliance. The framework includes a dynamic HTML template engine for rendering data-driven content without full page reloads and a dedicated ad network integration framework. This integration system manages third-party advertisements with built-in viewability metrics and optimized loading seque

This project is a social blogging application built with Flask. It provides a platform for user account management, following relationships, and chronological post streams, supported by a PostgreSQL relational database. The application features a multilingual web interface with localized content and date formatting. It is designed as a dockerized web application, utilizing containerization for consistent deployment across different environments. The system integrates a variety of core capabilities, including full-text search with provider abstraction, an asynchronous task worker for backgrou

Scriban is a text templating library and .NET scripting engine used for dynamic text generation. It functions as a template processor and a safe scripting sandbox, providing a secure execution environment that restricts object exposure to prevent unauthorized code execution. The project also includes an abstract syntax tree template parser that allows for programmatic template analysis and modification. The engine features a dedicated Liquid template engine and compatibility mode, allowing it to parse, execute, and convert templates written in Liquid syntax. It distinguishes itself through a

ejs is an embedded JavaScript template engine for Node.js that generates HTML and other text formats by embedding JavaScript logic into templates. It functions as a server-side rendering engine and HTML template processor that merges static markup with dynamic data. The system operates as a compiled template library, converting templates into JavaScript functions to enable cached rendering and faster execution. It includes built-in security to prevent cross-site scripting by automatically escaping HTML entities and special characters during the rendering process. The engine supports modular

Practicalnode is a comprehensive educational resource and backend development framework for mastering server-side programming with Node.js. It provides a structured approach to building scalable network services, REST APIs, and real-time applications using asynchronous JavaScript. The project serves as a detailed implementation guide for several core backend patterns, including MongoDB data modeling and the construction of REST API development kits. It emphasizes a specific workflow for Docker containerization and offers a variety of strategies for managing user identity through stateless tok

Rhai is an embedded scripting engine and dynamically typed language designed for integration into Rust applications. It functions as an abstract syntax tree compiler and native interop layer, allowing developers to map Rust types and functions into a scripting environment for bidirectional communication. The project serves as a framework for creating customizable domain-specific languages. It allows for the definition of custom operators, syntax, and restricted execution environments, enabling the creation of specialized languages with tailored functional sets. The engine covers a broad rang

Tornado is a Python web framework and asynchronous networking library used to build scalable web applications and high-performance servers. It provides a non-blocking HTTP server capable of handling thousands of simultaneous connections. The project functions as a WebSocket server framework, enabling real-time bidirectional communication and persistent connections between clients and servers. It supports the implementation of custom networking protocols and high-performance networking services beyond standard HTTP. Its capabilities cover asynchronous web application development, concurrent A

Expr is a statically typed expression engine and domain-specific language for parsing and evaluating dynamic logic strings within Go applications. It functions as a bytecode expression evaluator that executes compiled logic with guaranteed termination and memory safety. The engine utilizes a specialized compiler and virtual machine to achieve high-performance execution. It employs static type validation during the compilation phase to ensure operand compatibility and prevent runtime crashes. The project provides a data transformation engine capable of mapping, filtering, and aggregating coll

Statamic is a content management system built on Laravel that utilizes a flat-file storage approach instead of a traditional relational database. It functions as a customizable administrative framework for managing site content and developing custom backend addons. The system stores website data in files and integrates with Git for versioning, allowing content changes to be tracked and rolled back through a repository. It employs a templating engine to transform structured data into dynamic HTML layouts for front-end rendering. The platform includes a control panel built as a single-page app

koa2-note is a project focused on Koa2 web server development and Node.js asynchronous programming. It provides a framework for building web servers and APIs using an asynchronous middleware pipeline to handle request and response cycles. The project emphasizes a layered backend architecture that decouples routing, business services, and data models. It distinguishes itself through the integration of relational databases for persisting user sessions and application data, alongside a build process that includes JSX-to-JavaScript compilation for frontend assets. The capability surface covers b

Bottle is a lightweight Python web micro-framework and template engine. It functions as a WSGI web framework that routes HTTP requests to Python functions to generate dynamic content. The framework is distributed as a single Python file with no external dependencies. This minimalist distribution model allows for rapid application prototyping and the creation of web services with a small footprint. The project provides capabilities for dynamic request routing, REST API development, and dynamic HTML rendering. It includes a built-in HTTP development server for web application hosting and a plu

Tera is a server-side rendering engine and template engine for Rust. It is designed to generate dynamic text by injecting data into predefined template files, utilizing a syntax compatible with Jinja2 and Django. The engine supports a variety of text generation tasks, including the creation of web pages via HTML rendering, the automation of email templates, and the production of environment-specific configuration files.