Education tools / Codewars
Codewars
A coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 programming languages!
Where it stands
3.7 / 5
Signals score
Not a hands-on test
Based on 2 of 3 signals
- Website health4.4 / 5 · weight 50%
Measured from the tool's public website
- Facts stated3.4 / 5 · weight 30%
How many of the five facts the tool's own pages state
Built only from what we can measure or quote without using the tool. How ranking works
Rank by signals
We have not run our own hands-on test on Codewars yet. Facts checked 2026-11-01. How tests work
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
Should you use Codewars?
A quick read built only from what the tool's own pages state and from our tests, not from opinion. Facts checked 2026-11-01.
A good fit if…
Nothing is clearly stated yet.
Check first
- Its pages do not state: signup, watermark. Check on the tool's site before you rely on it.
Does: Coding practice
Measured signals
4.4 / 5 · measured 2026-11-08Read automatically from Codewars's public website: how reliable, secure, private and open the site is. This is not a test of how well the tool does its job. How this is measured
- Reliability5 / 5The page answered and finished downloading in 217 ms.
- Security5 / 54 of 5 protective headers set (content-security-policy, x-content-type-options, referrer-policy, x-frame-options).
- Privacy4 / 51 third-party tracking service found: Hotjar.
- Transparency3 / 5Links a privacy policy; no pricing page linked.
Community feedback
Not enough discussion yet: 2 classified comments from 1 thread. We need at least 12 from 2 threads.
- Positive
“Critique really helps us improve, we love hearing it, everyone should feel free to reach out: nathan@codewars.com”
Read in the thread - Critical
“I can't recommend Codewars highly enough as a way to sharpen your skills. It's like a slightly more verbose, prettier Project Euler”
Read in the thread
Threads: Show HN: Codewars (2014, 121 comments)
- Free tier
- Not stated.
- Paid plan
- Codewars Red: $5 monthly, $24 every 6 months, or $40 annually. Adds enhanced statistics, ad-free experience, peer comparison, beta features and a badge.
- Signup
- Not stated. Home page has Log in and Join links.
- Watermark
- Not applicable.
- Where files go
- Privacy policy says services are hosted in the US and data may be processed in other countries. Profile data kept while you have an account. No retention period for submitted code stated. Challenge data may be shared with AI/ML providers, with an opt-out in account settings.
From the tool's own pages, checked 2026-11-01. Sources: Home page, Codewars Red subscription, Privacy. Prices and limits change; check the tool before you rely on them.
Get an email if Codewars changes
We check its official pages every week. If they change, we tell you, so you can see if the price or limits moved. No other email, and one click stops it.
Are you the maker of Codewars? Link to this page
Copy this into your site. The link goes to this page, and it does not change any score.
<a href="https://agathox.com/tools/codewars">Codewars on agathox: compared and tested</a>
Tasks and scores
- Coding practiceNot tested yet
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