Dev tools · alternatives · 2026

24 alternatives to Adversary

Fun and effective security training for developers

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Adversary launched in 2019; newer entries below may have overtaken it.

1. 1
   Practice.dev▲196

   Learn programming for free.

   2020 · its alternatives →

2. 2
   Security Training for Developers▲128

   Hacksplaining teaches secure coding through interactive lessons where you exploit attacks, then learn fixes. Free. 45+ lessons covering OWASP Top 10 and AI-era threats.

   2016 · hacksplaining.com · its alternatives →

3. 3
   Programmer Unknown's BattleGround▲97

   An automatic environment to train programming skills

   2018 · appcraft.pro · its alternatives →

4. 4ET
   Easy to Understand Software Security Training▲36

   Kontra is an Application Security Training platform built for modern development teams.

   2020 · application.security · its alternatives →

5. 5
   dev.to▲367

   Where programmers share ideas and help each other grow

   2017 · dev.to · its alternatives →

6. 6
   Real Dev▲214

   Real-life coding skill challenge

   2019 · real.dev · its alternatives →

7. 7
   Practice.dev 2.0▲119

   Learn programming for free. Backed by Crypto.

   2021 · its alternatives →

8. 8
   The Secure Developer - Ep. #1 Prioritizing Secure Development▲66

   Security for developers, covering tools and best practices.

   2016 · heavybit.com · its alternatives →

9. 9
   bestcodingpractices.dev▲92

   A place to learn, inspire and share best coding practices

   2023 · its alternatives →

10. 10
    Codewars▲74

    Improve your skills by training w/ others on code challenges

    2014 · codewars.com · its alternatives →

11. 11
    Pwned Labs▲86

    The ultimate cybersecurity training ground for all levels

    2023 · pwnedlabs.io · its alternatives →

12. 12
    CodeFights▲96

    Practice Programming

    2014 · its alternatives →

13. 13
    Intro to Hacking Web Applications▲3

    Learn to hack. Protect your app!

    2022 · securewebsolutions.teachable.com · its alternatives →

14. 14
    The Secure Developer - Ep. #7, Understanding Container Security▲60

    Security for developers, including tools and best practices.

    2017 · heavybit.com · its alternatives →

15. 15
    DevMatch▲83

    Recruit developers, practice realistic coding assessments

    2022 · app.devmatch.io · its alternatives →

16. 16
    Automated code security assistant for developers▲64

    Automated security assistant for developers

    2020 · shieldfy.io · its alternatives →

17. 17FL
    Flaws: learn about common mistakes and gotchas when using AWS▲35

    Learn AWS security with the flAWS challenge

    2018 · flaws.cloud · its alternatives →

18. 18
    The Secure Developer - Ep. #4, Getting Down To The Metal▲73

    Security for developers, covering tools and best practices.

    2016 · heavybit.com · its alternatives →

19. 19
    The Secure Developer - Ep. #6, Developer War Games: Capture The Flag!▲70

    Security for developers, covering tools and best practices.

    2017 · heavybit.com · its alternatives →

20. 20
    Cybersecured.team▲10

    Cybersecurity education platform

    2024 · cybersecured.team · its alternatives →

21. 21
    The Secure Developer - Ep. #5, Continuous Security at Chef▲56

    Security for developers, covering tools and best practices.

    2016 · heavybit.com · its alternatives →

22. 22
    Linkversity▲44

    Onboard people to the codebase quickly

    2025 · linkversity.xyz · its alternatives →

23. 23IS
    IT-Security for Developers▲26

    2022 · dck-one.medium.com · its alternatives →

24. 24
    Code Wars▲31

    Improve your skills by training w/ others on code challenges

    2014 · codewars.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →