Free CodeChef alternatives: 6 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

6 of the 8 CodeChef alternatives we track can be used for free (free, open source, or with a free plan). LeetCode, GeeksforGeeks and NeetCode rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#	App	Pricing	Verified price	Open source	Platforms	Verified facts	Score
1	LeetCode	Free plan + paid	—	No	Web, iOS, Android	4 of 4	66.5
2	GeeksforGeeks	Free plan + paid	—	No	Web, Android, iOS	4 of 4	61.8
3	NeetCode	Free plan + paid	$297 one-time	No	Web	4 of 4	61.8
4	CodinGame	Free	—	No	Web	4 of 4	59.4
5	Codecademy	Free plan + paid	—	No	Web, iOS, Android	4 of 4	57.5
6	Advent of Code	Free	—	No	Web	5 of 5	57.5

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 CodeChef
The main place to practise interview-style problems, with weekly contests and company-tagged questions.
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 CodeChef Details 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 CodeChef 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. GeeksforGeeks
Best for: CS students and job seekers who want free explanations and practice problems for DSA and interviews
Free plan + paidWeb, Android, iOS
61.8
score / 100
Why switch from CodeChef
Huge library of data structures and algorithms tutorials, with practice problems and contests tied to them.
Pros
Free articles on almost every CS and DSA topic you'd be asked in interviews
Company-wise interview experiences and practice problems in one place
Paid courses cover DSA, system design and placements in depth
Cons
Free pages carry a lot of ads unless you pay for Premium
Article quality and accuracy vary between authors
Practice judge is less polished than LeetCode for contest-style problems
Visit GeeksforGeeks Compare with CodeChef Details and reviews
How this score is calculated
Editorial fit ×0.377
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 GeeksforGeeks a good CodeChef alternative?
Verified facts
4 of 4 verified
Founded
2008
Checked Nov 8, 2026geeksforgeeks.org(opens source in a new tab)
Registered users
50 million+
Checked Nov 8, 2026geeksforgeeks.org(opens source in a new tab)
Owner
Sanchhaya Education Pvt Ltd
Checked Nov 8, 2026geeksforgeeks.org(opens source in a new tab)
Premium course coverage
50+ technologies
Checked Nov 8, 2026geeksforgeeks.org(opens source in a new tab)
3. NeetCode
Best for: Interview candidates who want a curated problem order with a video explanation for each
Free plan + paidWeb
61.8
score / 100
Why switch from CodeChef
A tighter, curated problem roadmap with video walkthroughs if contests aren't the goal.
Pros
Roadmap puts interview topics in a sensible learning order
Clear video explanation for each listed problem
Lifetime purchase option instead of an ongoing subscription
Cons
Smaller problem set than LeetCode
Courses, system design and AI hints need Pro
Web only, with no mobile app
Visit NeetCode Details and reviews
How this score is calculated
Editorial fit ×0.377
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 NeetCode a good CodeChef alternative?
Verified facts
4 of 4 verified
Lifetime price
$297 one-time
Checked Nov 8, 2026neetcode.io(opens source in a new tab)
One-year price
$119
Checked Nov 8, 2026neetcode.io(opens source in a new tab)
Practice problems
300+
Checked Nov 8, 2026neetcode.io(opens source in a new tab)
Solution languages
8
Checked Nov 8, 2026neetcode.io(opens source in a new tab)
4. CodinGame
Best for: Developers who want game-style coding challenges and bot-programming contests
FreeWeb
59.4
score / 100
Why switch from CodeChef
Turns coding practice into games and bot battles, with puzzles in dozens of languages.
Pros
Bot programming leagues with real opponents' code
Many formats: optimisation, code golf, puzzles, five-minute clashes
Public API lets AI coding agents play contests and puzzles
Cons
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
Visit CodinGame 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 CodinGame a good CodeChef alternative?
Verified facts
4 of 4 verified
Game modes
Bot programming, optimisation, code golf
Checked Nov 8, 2026codingame.com(opens source in a new tab)
API for AI agents
Yes
Checked Nov 8, 2026codingame.com(opens source in a new tab)
Clash of Code
5-minute coding battles
Checked Nov 8, 2026codingame.com(opens source in a new tab)
Code golf
Shortest passing code wins
Checked Nov 8, 2026codingame.com(opens source in a new tab)
5. Codecademy
Best for: Beginners who want a structured, hands-on path into programming without setting up tools
Free plan + paidWeb, iOS, Android
57.5
score / 100
Why switch from CodeChef
Gentler interactive lessons for absolute beginners learning a first language.
Pros
Write and run code in the browser with no local setup
Clear skill and career paths that sequence courses for you
Wide catalogue covering web, data, AI, security and cloud
Cons
Free plan only gives limited course access
Career paths and interview prep need the more expensive Pro plan
Guided exercises can feel too hand-held for experienced developers
Visit Codecademy Details and reviews
How this score is calculated
Editorial fit ×0.363
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 Codecademy a good CodeChef alternative?
Verified facts
4 of 4 verified
Free plan
Yes (Basic)
Checked Nov 8, 2026codecademy.com(opens source in a new tab)
Mobile apps
iOS and Android
Checked Nov 8, 2026codecademy.com(opens source in a new tab)
In-browser coding
Yes
Checked Nov 8, 2026codecademy.com(opens source in a new tab)
Owner
Skillsoft
Checked Nov 8, 2026codecademy.com(opens source in a new tab)
6. Advent of Code
Best for: Programmers who like puzzles and want seasonal practice in any language
FreeWeb
57.5
score / 100
Why switch from CodeChef
Free yearly puzzle calendar every December, a fun way to sharpen problem-solving in any language.
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 ×0.363
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 CodeChef 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)

Quick comparison

1. LeetCodeTop pick

Pros

Cons

Verified facts

2. GeeksforGeeks

Pros

Cons

Verified facts

3. NeetCode

Pros

Cons

Verified facts

4. CodinGame

Pros

Cons

Verified facts

5. Codecademy

Pros

Cons

Verified facts

6. Advent of Code

Pros

Cons

Verified facts