# ICU library

5 Hacker News commenters recommended ICU library and 1 criticized it, November 2025 to November 2026. It was recommended in 3 of 13 months.

**Verdict:** Widely recommended as the standard Unicode and globalization library, seen as well engineered. Common caveat: easy to misuse, especially around normalization.

## Why people recommend it

- Seen as the best standard (1 comments): "it’s the best standard we have" ([source](https://news.ycombinator.com/item?id=46288699))
- Excellent, well-engineered library (2 comments): "I think what you are asking for already exists in the excellent ICU library." ([source](https://news.ycombinator.com/item?id=46047307)) "Not to say ICU isn't a nice bit of engineering." ([source](https://news.ycombinator.com/item?id=45945844))

## What people warn about

- Easy to misuse, normalization pitfalls (1 comments): "Yes, though it's easy to not use the ICU library properly or run into issues wrt normalization etc" ([source](https://news.ycombinator.com/item?id=45947451))

## Alternatives hackers recommend

- [chardet](https://hackerapproved.com/p/chardet.md): 7 recommend
- [Mojibake Unicode library](https://hackerapproved.com/p/mojibake.md): 5 recommend

## Cite as

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