# pallets/jinja

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11,475 stars · 1,703 forks · Python · bsd-3-clause

## Links

- GitHub: https://github.com/pallets/jinja
- Homepage: https://jinja.palletsprojects.com
- awesome-repositories: https://awesome-repositories.com/repository/pallets-jinja.md

## Topics

`jinja` `jinja2` `pallets` `python` `template-engine` `templates`

## Description

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 output escaping, which automatically sanitizes dynamic data based on the target document format to mitigate injection vulnerabilities.

The library supports a broad range of document generation tasks, including the ability to localize content into multiple languages and process asynchronous rendering for data-heavy workflows. It utilizes a pluggable pipeline for data transformation and compiles templates into internal bytecode to optimize rendering performance. The project is distributed as a Python package with comprehensive documentation for integration into web applications and automated reporting systems.

## Tags

### Development Tools & Productivity

- [Dynamic Templates](https://awesome-repositories.com/f/development-tools-productivity/project-scaffolding-config-code-generation/project-scaffolding-configuration/templating-engines/dynamic-templates.md) — Serves as a core Python library for generating dynamic content through expressions, control structures, and template inheritance.
- [Dynamic Document Generators](https://awesome-repositories.com/f/development-tools-productivity/documentation-discovery-metadata/knowledge-documentation-management/documentation-knowledge-tools/documentation-generators/dynamic-document-generators.md) — Generates dynamic text-based documents by injecting data into templates using logic expressions and control structures. ([source](https://cdn.jsdelivr.net/gh/pallets/jinja@main/README.md))
- [Template Compilation Tools](https://awesome-repositories.com/f/development-tools-productivity/build-tooling/template-compilation-tools/template-compilation-tools.md) — Optimizes rendering performance by compiling templates into executable code during build or runtime. ([source](https://cdn.jsdelivr.net/gh/pallets/jinja@main/README.md))

### Security & Cryptography

- [Web Application](https://awesome-repositories.com/f/security-cryptography/security/application-and-web/web-application.md) — Provides a robust engine for rendering dynamic HTML content in web applications with built-in security features.
- [Template Security Policies](https://awesome-repositories.com/f/security-cryptography/cryptography/template-security-policies.md) — Secures template execution by sandboxing untrusted code and enforcing automatic output escaping. ([source](https://cdn.jsdelivr.net/gh/pallets/jinja@main/README.md))
- [Secure Sandboxing](https://awesome-repositories.com/f/security-cryptography/secure-sandboxing.md) — Isolates untrusted templates in a secure environment to prevent malicious code injection during document generation.
- [Output Escaping](https://awesome-repositories.com/f/security-cryptography/security/application-and-web/web-application/output-escaping.md) — Automatically sanitizes dynamic data based on the target document format to prevent injection attacks.

### Web Development

- [Web Development](https://awesome-repositories.com/f/web-development.md) — Acts as a flexible engine for building dynamic HTML, XML, or plain text documents with integrated security.
- [Bytecode Compilers](https://awesome-repositories.com/f/web-development/performance-optimizations/component-update-optimizations/bytecode-compilers.md) — Compiles template syntax into optimized bytecode to accelerate rendering and reduce runtime overhead.
- [Internationalization & Localization](https://awesome-repositories.com/f/web-development/internationalization-localization.md) — Offers a framework for localizing template content to ensure accessibility for global audiences.
- [Multi-Language Content Delivery](https://awesome-repositories.com/f/web-development/internationalization-localization/translation-management-platforms/site-localization/multi-language-content-delivery.md) — Provides built-in tools for localizing template content into multiple languages and regional formats. ([source](https://cdn.jsdelivr.net/gh/pallets/jinja@main/README.md))

### Software Engineering & Architecture

- [Sandboxed Execution Environments](https://awesome-repositories.com/f/software-engineering-architecture/sandboxed-execution-environments.md) — Enforces strict execution boundaries to restrict access to system resources when evaluating untrusted template code.
- [Template Overrides](https://awesome-repositories.com/f/software-engineering-architecture/extensible-plugin-architectures/template-overrides.md) — Supports modular design through template inheritance, allowing child templates to override blocks in parent structures.

### DevOps & Infrastructure

- [Template Variable Transformers](https://awesome-repositories.com/f/devops-infrastructure/template-variables/template-variable-transformers.md) — Implements a pluggable pipeline of chainable filters for modifying variables directly within the template layer.