# Micronaut

11 Hacker News commenters recommended Micronaut and 1 criticized it, November 2025 to November 2026. It was recommended in 4 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Java framework people pick over Spring for compile-time injection and low memory use. Critics say special cases can mean digging into source to see what is happening.

## Why people recommend it

- Compile-time dependency injection (2 comments): "which does none of that and uses an annotation processor at compile time instead" ([source](https://news.ycombinator.com/item?id=50140263)) "I want compile time DI, so Micronaut or Quarkus." ([source](https://news.ycombinator.com/item?id=47421981))
- Nicer developer experience than Spring (3 comments): "I found both Micronaut and Quarkus dev experience more palatable than spring." ([source](https://news.ycombinator.com/item?id=47422616)) "It's such a breath of fresh air compared to spring." ([source](https://news.ycombinator.com/item?id=47577478)) "I'd rather use Micronauts or Quarkus than Spring" ([source](https://news.ycombinator.com/item?id=47578574))
- Slim, low memory footprint (2 comments): "There is quarkus, helidon and micronaut for slimmer more modern backend frameworks." ([source](https://news.ycombinator.com/item?id=47418200)) "Memory footprint is 5–40 MB RSS." ([source](https://news.ycombinator.com/item?id=47424934))

## What people warn about

- Hard to debug special cases (2 comments): "It works great until it doesn't, and you have a special case, and then you have to dig into" ([source](https://news.ycombinator.com/item?id=47426370)) "It works great until it doesn't, and you have a special case, and then you have to dig into source to figure out what on earth is going on." ([source](https://news.ycombinator.com/item?id=47423167))

## Alternatives hackers recommend

- [Ruby on Rails](https://hackerapproved.com/p/ruby-on-rails.md): 337 recommend
- [Django](https://hackerapproved.com/p/django.md): 277 recommend
- [Next.js](https://hackerapproved.com/p/next-js.md): 127 recommend
- [Phoenix Framework](https://hackerapproved.com/p/phoenix.md): 85 recommend
- [Laravel](https://hackerapproved.com/p/laravel.md): 71 recommend

## Cite as

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