# Jinja

14 Hacker News commenters recommended Jinja and 7 criticized it, November 2025 to November 2026. It was recommended in 7 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Python template engine that separates HTML from code, paired with Django or Flask. Critics note sandboxing is hard to add later and dislike the syntax.

## Why people recommend it

- Better developer experience and debuggability (2 comments): "jinja2 is basically identical except performant and debuggable" ([source](https://news.ycombinator.com/item?id=46804052)) "developer experience (in templates) is considerably better" ([source](https://news.ycombinator.com/item?id=49080878))
- Separates HTML from application code (2 comments): "separating html out in jinja2 or whatever is far superior" ([source](https://news.ycombinator.com/item?id=48231320)) "switch from Python strings to Jinja templates" ([source](https://news.ycombinator.com/item?id=46428236))
- Easy migration as a drop-in backend (2 comments): "jinja2 is drop in by changing the template backend." ([source](https://news.ycombinator.com/item?id=49058234)) "The migration is fairly simple and well documented." ([source](https://news.ycombinator.com/item?id=49058814))

## What people warn about

- Not sandboxed or sanitized by default (2 comments): "it simply predates the "sanitize by default" mindset/convention" ([source](https://news.ycombinator.com/item?id=49102691)) "Jinja probably was not initially made with sandboxing in mind, and stuffing it after is complicated, so I would not rely on it." ([source](https://news.ycombinator.com/item?id=49105264))

## Alternatives hackers recommend

- [Templ](https://hackerapproved.com/p/templ.md): 9 recommend
- [ASP.NET Razor](https://hackerapproved.com/p/razor.md): 8 recommend
- [Pug template engine](https://hackerapproved.com/p/pug.md): 5 recommend
- [Gsxui](https://hackerapproved.com/p/gsxui.md): 5 recommend
- [Liquid templating language](https://hackerapproved.com/p/liquid-templating-language.md): 5 recommend

## Cite as

Hacker Approved, "Jinja", https://hackerapproved.com/p/jinja/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).