# Exercism

6 Hacker News commenters recommended Exercism and 2 criticized it, November 2025 to November 2026. It was recommended in 4 of 13 months.

**Verdict:** Free site for practicing programming with test-driven exercises in many languages, suited to learners at all levels; critics cite too many features.

## Why people recommend it

- Test-driven practice exercises in many languages (2 comments): "a site I liked called exercism which also had a multi language track unit test passing style which I really value" ([source](https://news.ycombinator.com/item?id=48873889)) "If I had a suite of tests, I could just run code against them. Just like Exercism." ([source](https://news.ycombinator.com/item?id=48881377))
- Good for learners at all levels (2 comments): "Exercism.io is excellent for exactly the experience you're seeking." ([source](https://news.ycombinator.com/item?id=46839916)) "making it suitable for learners of all levels" ([source](https://news.ycombinator.com/item?id=46810639))
- Good for practicing programming (2 comments): "Exercism.io is excellent for exactly the experience you're seeking." ([source](https://news.ycombinator.com/item?id=46839916)) "Perhaps use Exercism to practice." ([source](https://news.ycombinator.com/item?id=50275157))

## Alternatives hackers recommend

- [LeetCode](https://hackerapproved.com/p/leetcode.md): 50 recommend
- [Project Euler](https://hackerapproved.com/p/project-euler.md): 45 recommend
- [Advent of Code](https://hackerapproved.com/p/advent-of-code.md): 31 recommend
- [Codecrafters](https://hackerapproved.com/p/codecrafters.md): 14 recommend
- [AlgoDrill](https://hackerapproved.com/p/algodrill.md): 13 recommend

## Where to get it

- [Visit the official site](https://exercism.org/)

## Cite as

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