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Jinja icon

Jinja

Jinja is a fast, expressive, extensible templating engine. Special placeholders in the template allow writing code similar to Python syntax. Then the template is passed data to render the final document.

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  • Python
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Jinja was added to AlternativeTo by Danilo Aghemo on and this page was last updated .

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AI Slopfree Software Catalog

A more optimistic homage to the slopware catalog https://alternativeto.net/lists/44427/slopware/, this list is designed to showcase projects, both FOSS and proprietary, which reject contributions from Generative AI LLM slop machines. The most pessimistic thing about this list is how short it is and how so many commonly used software solutions and websites are not included. I have to give it up to the following sites for providing references: https://codeberg.org/brib/slopfree-software-index https://github.com/melissawm/open-source-ai-contribution-policies There are a lot more projects on this list which I didn't include because they aren't on AlternativeTo (yet). I'll be adding more entries to this site (and removing those who fold to the AI overlords) on a regular basis. I'm including references, which are all first-hand declarations from the development teams for each entry to ensure items aren't included based on hearsay or conjecture. Updated 10-2-2026
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What is Jinja?

Jinja is a fast, expressive, extensible templating engine. Special placeholders in the template allow writing code similar to Python syntax. Then the template is passed data to render the final document.

It includes:

  • Template inheritance and inclusion.
  • Define and import macros within templates.
  • HTML templates can use autoescaping to prevent XSS from untrusted user input.
  • A sandboxed environment can safely render untrusted templates.
  • AsyncIO support for generating templates and calling async functions.
  • I18N support with Babel.
  • Templates are compiled to optimized Python code just-in-time and cached, or can be compiled ahead-of-time.
  • Exceptions point to the correct line in templates to make debugging easier.
  • Extensible filters, tests, functions, and even syntax.