Life & fun · alternatives · 2026

24 alternatives to 21-Day Coding Challenge

Create a daily habit with new JavaScript coding challenges

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 21-Day Coding Challenge launched in 2019; newer entries below may have overtaken it.

1. 1
   1Code1Day▲16

   A daily code challenge

   2025 · 1code1day.app · its alternatives →

2. 2
   100 Days of Code▲306

   Make coding a habit. Join the growing community.

   2018 · 100daysofcode.com · its alternatives →

3. 3
   24 days of #JavaScriptmas 🎄▲24

   📅 Coding advent calendar with daily challenges and prizes

   2020 · scrimba.com · its alternatives →

4. 4
   100DaysOfNoCode Challenge▲566

   Learn to no-code in 100 days

   2021 · 100school.com · its alternatives →

5. 5
   A Repo of JavaScript Coding Challenges▲127

   Some basic javascript coding challenges and interview questions - kolodny/exercises

   2015 · github.com · its alternatives →

6. 6
   No Code Challenges▲201

   A weekly challenge to test your #nocode skills

   2020 · its alternatives →

7. 7
   JavaScript Learning Roadmap▲13

   Master JavaScript in 30 Days—One Project at a Time!

   2025 · java-script-learning-roadmap.vercel.app · its alternatives →

8. 8
   Frontyssey▲117

   Build your coding confidence with engaging challenges

   2023 · its alternatives →

9. 9JB
   JavaScript Battle – A daily artificial intelligence battle▲137

   2014 · javascriptbattle.com · its alternatives →

10. 10
    DEV Challenges▲145

    Mini-hackathons to build your portfolio and win cash prizes

    2024 · dev.to · its alternatives →

11. 11
    Enlight Cohorts▲126

    Learn web development in two weeks by building projects

    2020 · enlight.nyc · its alternatives →

12. 12
    50 coding challenges for JS code newbies▲4

    50 coding challenges (with solutions) for JS code newbies

    2019 · codeguppy.com · its alternatives →

13. 13
    Daily Dose of Coding▲2

    A daily coding challenge — like Wordle, but you write code

    Jun 2026 · dailydoseofcoding-production.up.railway.app · its alternatives →

14. 14
    Advent of No-Code 2024▲178

    Create daily with 24 no-code challenges

    2024 · adventofnocode.io · its alternatives →

15. 151Q
    15-question programming quiz with answers▲227

    2017 · quiz.triplebyte.com · its alternatives →

16. 16
    Coding Buddy▲84

    Never miss a coding contest again

    2021 · chromewebstore.google.com · its alternatives →

17. 17
    List of +100 Frontend Coding Challenges▲122

    Never run out of coding ideas, ever again.

    2021 · trevorlasn.gumroad.com · its alternatives →

18. 18
    AvocadoGrowth Frontend Coding Challenge▲97

    Elevate your coding skills through daily design recreations

    2024 · its alternatives →

19. 19
    Run Code Snippets in Any Language Inside Your Blog▲75

    CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. Solve games, code AI bots, learn from your peers, have fun.

    2017 · tech.io · its alternatives →

20. 20
    CodeCombat▲143

    Learn to Code JavaScript by Playing a Game

    2014 · codecombat.com · its alternatives →

21. 21
    21 Days Challenge▲96

    A set of challenges to be accomplished every day for 21 days

    2019 · play.google.com · its alternatives →

22. 22
    JavaScript for Starters: The Guide▲80

    Learning JavaScript is the best investment you can do today.

    2022 · codemarch.gumroad.com · its alternatives →

23. 231M
    10-minute programming challenge. Let's do more of these.▲45

    2012 · missstep.com · its alternatives →

24. 24
    Talentbuddy▲123

    Practice your coding skills in 14 programming languages

    2014 · udemy.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 →