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CodinGame alternatives: 4 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rankAll coding practice platforms

Top picks

Common reasons people leave CodinGame: game puzzles map poorly to typical interview questions, and runs only in the browser, with no offline mode. We ranked 4 alternatives by how directly each one replaces CodinGame, then by reviews, real visits and how recently each app's facts were checked against its own website. LeetCode currently ranks first.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1LeetCode logoLeetCodeFree plan + paid—NoWeb, iOS, Android4 of 466.5
2Advent of Code logoAdvent of CodeFree—NoWeb5 of 564.8
3freeCodeCamp logofreeCodeCampFree—NoWeb, iOS, Android5 of 559.4
4Kaggle logoKaggleFree—NoWeb3 of 352.6
  1. LeetCode logo

    1. LeetCodeTop pick

    Best for: Developers preparing for algorithm-heavy technical interviews at tech companies

    Free plan + paidWeb, iOS, Android

    66.5

    score / 100

    Why switch from CodinGame

    Better for interview prep, with a huge bank of algorithm problems and company tags.

    Pros

    • Huge problem library with an in-browser judge for many languages
    • Free weekly and biweekly contests with a public rating
    • Premium lets you filter questions by the companies that asked them

    Cons

    • Teaches interview puzzles, not how to build real software
    • Official solutions and many popular questions sit behind Premium
    • Little guided structure for beginners compared with course-style sites
    Visit LeetCode Compare with CodinGameDetails and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is LeetCode a good CodinGame alternative?

    Verified facts

    4 of 4 verified
    Languages
    C++, Java, Python, JavaScript, Go, Rust and more
    Checked Nov 8, 2026support.leetcode.com(opens source in a new tab)
    Contests
    Weekly and biweekly
    Checked Nov 8, 2026support.leetcode.com(opens source in a new tab)
    Premium extras
    Company-tagged questions and mock interviews
    Checked Nov 8, 2026support.leetcode.com(opens source in a new tab)
    Premium billing
    Monthly or annual
    Checked Nov 8, 2026support.leetcode.com(opens source in a new tab)
  2. Advent of Code logo

    2. Advent of Code

    Best for: Programmers who like puzzles and want seasonal practice in any language

    FreeWeb

    64.8

    score / 100

    Why switch from CodinGame

    Free yearly puzzle calendar you can solve in any language on your own machine.

    Pros

    • Completely free, with every past year's puzzles still available
    • Use any language and your own tools
    • Private leaderboards make it easy to compete with friends or colleagues

    Cons

    • New puzzles only appear in December
    • No global leaderboard any more
    • No in-site editor, hints or test runner
    Visit Advent of Code Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Advent of Code a good CodinGame alternative?

    Verified facts

    5 of 5 verified
    Price
    Free
    Checked Nov 8, 2026adventofcode.com(opens source in a new tab)
    Languages
    Any
    Checked Nov 8, 2026adventofcode.com(opens source in a new tab)
    Hardware needs
    Under 15 s on ten-year-old hardware
    Checked Nov 8, 2026adventofcode.com(opens source in a new tab)
    Creator
    Eric Wastl
    Checked Nov 8, 2026adventofcode.com(opens source in a new tab)
    Global leaderboard
    Removed
    Checked Nov 8, 2026adventofcode.com(opens source in a new tab)
  3. freeCodeCamp logo

    3. freeCodeCamp

    Best for: Self-motivated beginners who want a complete, free path into web development and coding

    FreeWeb, iOS, Android

    59.4

    score / 100

    Why switch from CodinGame

    Structured free curriculum for learning to code rather than competing.

    Pros

    • Every course and certification is completely free
    • Project-based certifications that build a portfolio
    • Large community forum, tutorial library and YouTube courses

    Cons

    • No live instruction or personal mentoring
    • Certifications take around 300 hours each
    • Certificates carry less weight than university or vendor credentials
    Visit freeCodeCamp Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is freeCodeCamp a good CodinGame alternative?

    Verified facts

    5 of 5 verified
    Price
    100% free
    Checked Nov 8, 2026freecodecamp.org(opens source in a new tab)
    Organisation
    501(c)(3) public charity
    Checked Nov 8, 2026freecodecamp.org(opens source in a new tab)
    License
    BSD-3-Clause
    Checked Nov 8, 2026freecodecamp.org(opens source in a new tab)
    Mobile apps
    iOS and Android
    Checked Nov 8, 2026freecodecamp.org(opens source in a new tab)
    Certification length
    About 300 hours
    Checked Nov 8, 2026freecodecamp.org(opens source in a new tab)
  4. Kaggle logo

    4. Kaggle

    Best for: Students and data scientists who want free notebooks, public datasets and ML competitions in one place

    FreeWeb

    52.6

    score / 100

    Why switch from CodinGame

    Competitions centred on data science and machine learning rather than game bots.

    Pros

    • Free hosted notebooks with a weekly GPU and TPU allowance
    • Huge library of public datasets and models to start from
    • Competitions give real problems with public leaderboards
    • Official open-source CLI for downloading data and submitting

    Cons

    • Notebook sessions have time limits and capped accelerator hours
    • Not built for private team work on company data
    • Web only; the notebook environment can't be self-hosted
    Visit Kaggle Details and reviews
    How this score is calculated
    Editorial fit ×0.346
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Kaggle a good CodinGame alternative?

    Verified facts

    3 of 3 verified
    Official CLI
    Yes, open source (Apache-2.0)
    Checked Nov 2, 2026github.com(opens source in a new tab)
    Notebook environment
    Public Python Docker image
    Checked Nov 2, 2026github.com(opens source in a new tab)
    Python client library
    kagglehub (Apache-2.0)
    Checked Nov 2, 2026github.com(opens source in a new tab)

The best CodinGame alternative for…

The highest-ranked app in this list for each need.

LeetCode logo

Best CodinGame alternative for most people

LeetCode

Better for interview prep, with a huge bank of algorithm problems and company tags.

Advent of Code logo

Best CodinGame alternative for a free option

Advent of Code

Free yearly puzzle calendar you can solve in any language on your own machine.

LeetCode logo

Best CodinGame alternative for a free plan you can upgrade

LeetCode

Better for interview prep, with a huge bank of algorithm problems and company tags.

freeCodeCamp logo

Best CodinGame alternative for iPhone and Android

freeCodeCamp

Structured free curriculum for learning to code rather than competing.

Kaggle logo

Best CodinGame alternative for working in the browser

Kaggle

Competitions centred on data science and machine learning rather than game bots.

CodinGame alternatives: common questions

What is the best alternative to CodinGame?

LeetCode ranks first right now. Better for interview prep, with a huge bank of algorithm problems and company tags. Advent of Code and freeCodeCamp follow it in our ranking.

CodinGame vs LeetCode: what's the difference?

CodinGame is free to use; LeetCode is free with paid plans. Only LeetCode runs on iOS and Android.

Is CodinGame free?

CodinGame is free to use.

Is there a free alternative to CodinGame?

Yes. LeetCode (free plan + paid), Advent of Code (free), freeCodeCamp (free) and Kaggle (free) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to CodinGame?

None of the 4 alternatives in this list is open source.

Why do people switch from CodinGame?

The complaints we hear most: game puzzles map poorly to typical interview questions; runs only in the browser, with no offline mode; contest schedule is limited to a few events a year.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces CodinGame, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.