---
id: jinjanator
version: "25.3.1"
license: Apache-2.0
license_treatment: permissive
maintenance: active
---

# jinjanator — Command-line interface to Jinja2 for templating in shell scripts.

License: permissive · Maintenance: active · Downloads: 1.1M/mo

## What it is and what it does

Jinjanator is a command-line wrapper around Jinja2 that lets you render templates from the shell or in scripts. It reads a Jinja2 template file and combines it with data from multiple sources—JSON, YAML, INI files, dotenv files, or environment variables—then outputs the rendered result. The tool is designed for configuration generation, infrastructure-as-code workflows, and any scenario where you need templating outside a Python application.

The package depends on Jinja2, attrs, PyYAML, python-dotenv, typing-extensions, and its own plugin system (jinjanator-plugins). It supports custom Jinja2 filters and tests via Python files, and can be extended with plugins that add new data formats or template functions. The tool is actively maintained, supports modern Python versions, and carries no known security vulnerabilities.

Use it for:

- Generate NGINX or Apache configuration files from templates with environment-specific data in JSON or YAML.
- Render Kubernetes manifests or Terraform configurations using templated definitions and variable files.
- Create dotenv or shell configuration files by templating environment variables and secrets.
- Build infrastructure-as-code pipelines that need to generate config files from data sources in CI/CD workflows.
- Render email templates, documentation, or other text output from structured data in shell scripts.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

A command-line tool that renders Jinja2 templates using data from INI, YAML, JSON, or environment variables, with support for custom filters, tests, and plugins.

Yes. Jinjanator is a stable, actively maintained tool with low install friction and no security vulnerabilities. It fills a clear niche for command-line template rendering and is well-suited for infrastructure automation, config generation, and shell-based workflows. The permissive Apache-2.0 license and support for current Python versions make it a low-risk dependency. Install it if you need Jinja2 templating outside a Python application.

## Install

pip install jinjanator
uv add jinjanator
poetry add jinjanator

## Installing jinjanator

Before you install: Low friction installation as a pure Python wheel. Actively maintained with recent releases; last commit was 2026-08-02 and the package is marked as Production/Stable. Supports current Python versions (3.10 through 3.14).

License in practice: Licensed under Apache-2.0 (permissive), allowing use in most projects without significant restrictions. You may use, modify, and distribute the software freely provided you include the license and notice of changes.

Quickstart:

pip install jinjanator

# Render template with JSON data
jinjanate config.j2 data.json > output.conf

# Or use environment variables
export HOSTNAME=localhost
jinjanate config.j2

Requires Python 3.10 or later.

Verify before relying:

- Whether plugin ecosystem is actively maintained and whether available plugins cover your use cases.
- Performance characteristics when rendering large templates or processing large data files.
- Exact behavior of the --customize option and whether custom Python code execution poses security concerns in your environment.

## Package facts

- License: Apache-2.0 (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 1.1M/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

jinja2 template rendering cli, command line template engine, yaml json template processor, environment variable templating, configuration file generator, jinja2 cli tool, template rendering from shell, cli-tool, template-engine, infrastructure-automation

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