LeetCode
The most recommended of 8 coding practice platforms
People recommend it for practicing the algorithm problems used in technical interviews, and say the free version is enough for standard interviews. The most common caveat is that critics say it rewards interview tricks more than real engineering.
People recommend it for practicing the algorithm problems used in technical interviews, and say the free version is enough for standard interviews. The most common caveat is that critics say it rewards interview tricks more than real engineering.
113 people gave an opinion
- recommend it
- 50
- criticize it
- 63
- approval share
- 44%
Recommended in 11 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: not recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 50 people recommend itNeeds 10 or more, met.
- 0.7 recommenders for every criticNeeds 2 to 1 or better, not met.
- Recommended in 11 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Practice for technical interviews
“Practice leetcode + hello interview, as almost every place will have some sort of leetcode round and system design round.”
Comment from 12 Jan 2026 in “Ask HN: Job seekers, what's working / not working?” “Solving the leetcode and clearing system design interviews can help you land a paying job.”
Comment from 26 Dec 2025 in “Ask HN: Pivot from SWE to What?” “The free version of LeetCode is more than enough to prepare for standard interviews.”
Comment from 10 Sep 2026 in “Show HN: I couldn't afford interview prep, so I built a free alternative” - Comment from 12 Nov 2025 in “Ask HN: How does one stay motivated to grind through LeetCode?”
- Comment from 2 May 2026 in “Good developers learn to program. Most courses teach a language”
Sharpens problem-solving and algorithm skills
“I still do it to brush up my problem-solving skills and fundamental understanding of systems and data structures”
Comment from 14 Apr 2026 in “Ask HN: LeetCode, anyone still doing it?” “Doing leetcode absolutely makes your system design better and you don't deploy algorithms you don't know.”
Comment from 16 Jun 2026 on Hacker News “I enjoyed the challenge and learning how to get better at understanding, solving them myself”
Comment from 12 Nov 2025 in “Ask HN: How does one stay motivated to grind through LeetCode?” - Comment from 10 Sep 2026 in “What algorithm did Windows XP use to choose your initial user picture?”
- Comment from 9 Sep 2026 in “Ask HN: Anyone still coding like 2021? Where do you work?”
Problems are fun and engaging
“I did spend a few months studying it and it turned out to be pretty fun”
Comment from 25 Dec 2025 in “Ask HN: Pivot from SWE to What?” “Some of the problems are genuinely fun, like dynamic programming.”
Comment from 19 Sep 2026 in “Jobs Without LeetCode” “I actually have been enjoying it a lot more than in the past”
Comment from 19 Oct 2026 in “It's still ok to enjoy programming” - Comment from 12 Nov 2025 in “Ask HN: How does one stay motivated to grind through LeetCode?”
- Comment from 14 Nov 2025 in “Ask HN: How does one stay motivated to grind through LeetCode?”
Worth the cost for jobs
“that $30 subscription has probably paid for itself 20,000x over at this point”
Comment from 10 Sep 2026 in “Show HN: I couldn't afford interview prep, so I built a free alternative” “I told him those three weeks would be the best ROI he'd ever make.”
Comment from 12 Aug 2026 in “AI is removing the middle class of software engineering” “one of the highest ROI things you can buy”
Comment from 10 Sep 2026 in “Show HN: I couldn't afford interview prep, so I built a free alternative”
What people warn about
Each mark is one comment
Tests interview tricks, not engineering
“Grinding leetcode was never optimizing for solving problems algorithmically but for performing well in live coding interviews.”
Comment from 15 Apr 2026 in “Ask HN: LeetCode, anyone still doing it?” “Leetcode does not test your ability to code in the sense of anything related to real world engineering applications.”
Comment from 19 Sep 2026 in “Jobs Without LeetCode” “LeetCode can impossibly teach you how to create useful programs, it only teaches you syntax and specific problems.”
Comment from 9 Dec 2025 in “Show HN: AlgoDrill – Interactive drills to stop forgetting LeetCode patterns” Takes time away from other work
“I became a worse developer because I spent time on Leetcode instead of my open source projects, but it taught me marathon long grind.”
Comment from 12 Oct 2026 in “Sorry we made you grind LeetCode” “leetcode grinding makes me feel like all my 10+ years of commitment to my previous employer”
Comment from 12 Nov 2025 in “Ask HN: How does one stay motivated to grind through LeetCode?” Interviewers often poorly prepared
“Any company still using LeetCode at all during interviews is signaling that either they are run like a frat house”
Comment from 9 Dec 2025 in “Show HN: AlgoDrill – Interactive drills to stop forgetting LeetCode patterns” “I've almost always seen the LeetCode grilling be administered by someone who doesn't know what they're doing”
Comment from 2 Nov 2025 in “AI Broke Interviews” “It is a waste of everyone's time because they will either do it and think 'ok, that was weird'”
Comment from 5 Mar 2026 in “Stop the Interviews” Favors younger, recent graduates
“I think Leetcode does weed out older folks, not necessarily because of skill, but because of the time needed for practice.”
Comment from 5 Feb 2026 in “Why More Companies Are Recognizing the Benefits of Keeping Older Employees” “this type of interview is biased toward younger out of college hires and codecamp hires”
Comment from 30 May 2026 in “The Last Technical Interview”
Other coding practice platforms people recommend
The four most recommended other coding practice platforms, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| LeetCodeThis page | 50 | 63 | 44% | 11 | — | — |
| Project Euler | 45 | 6 | 88% | 5 | 12 yrs9 owners | Approved |
| Advent of Code | 31 | 5 | 86% | 6 | 4 yrs3 owners | Approved |
| Codecrafters | 14 | 3 | 82% | 4 | — | Approved |
| AlgoDrill | 13 | 12 | 52% | 1 | — | — |
What people said
40 of the 122 comments that mention it, newest first. Each links to the original comment.
“I've found it crucial to solve some LeetCode problems from time to time.”
“honestly just hones how patient you are in debugging and memorising various code patterns”
“Solving algorithm problems is different in interviews than on Leetcode”
“I actually have been enjoying it a lot more than in the past”
“What helped me was LeetCode, which I ignored for a long time because programming at work was enough.”
“I became a worse developer because I spent time on Leetcode instead of my open source projects, but it taught me marathon long grind.”
“Some of the problems are genuinely fun, like dynamic programming.”
“Leetcode does not test your ability to code in the sense of anything related to real world engineering applications.”
“the algorithms and pathological edge cases you learn really do change your thinking”
“The free version of LeetCode is more than enough to prepare for standard interviews.”
“that $30 subscription has probably paid for itself 20,000x over at this point”
“one of the highest ROI things you can buy”
“I've found aoc/leetcode pretty much reversed the accidental atrophy for me”
“There is no practical use, but it make me feel good and sharp for the rest of the day.”
“if they are also on Leetcode treadmill and about grokking interviews”
“I told him those three weeks would be the best ROI he'd ever make.”
“Doing leetcode absolutely makes your system design better and you don't deploy algorithms you don't know.”
“this type of interview is biased toward younger out of college hires and codecamp hires”
“If you want to be a well-paid developer, learn leetcode.”
“Grinding leetcode was never optimizing for solving problems algorithmically but for performing well in live coding interviews.”
“I still do it to brush up my problem-solving skills and fundamental understanding of systems and data structures”
“comes down to knowing a trick rather for leetcode than actual coding”
“It is a waste of everyone's time because they will either do it and think 'ok, that was weird'”
“I think Leetcode does weed out older folks, not necessarily because of skill, but because of the time needed for practice.”
“Practice leetcode + hello interview, as almost every place will have some sort of leetcode round and system design round.”
“Leetcode is repetitive by design, because after a while you realize the core problems are focusing on a half dozen different concepts.”
“Solving the leetcode and clearing system design interviews can help you land a paying job.”
“I did spend a few months studying it and it turned out to be pretty fun”
“Any company still using LeetCode at all during interviews is signaling that either they are run like a frat house”
“LeetCode can impossibly teach you how to create useful programs, it only teaches you syntax and specific problems.”
“I don't feel like I'm working when playing leetcode.”
“Leetcode stinks but you are really filtering out a lot of high paying jobs if you refuse to do it”
“I am indeed learning a lot more about Python through my leetcode exercises”
“You can also see the solutions for the fastest run times which can teach you some lower level ideas”
“I enjoyed the challenge and learning how to get better at understanding, solving them myself”
“The problems are actually pretty fun for the most part.”
“leetcode grinding makes me feel like all my 10+ years of commitment to my previous employer”
“If you want to work at a tech company, then solve leetcode questions.”
“You get Leetcode subscription and start going through paths for a company that can match or exceed your salary.”
“I've almost always seen the LeetCode grilling be administered by someone who doesn't know what they're doing”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.