LeetCode
The default interview practice set
Free plan
SQLZoo
SQL by doing, in the browser.
The details
- Cost
- Free
- Type
- Coding practice
More like this
NeetCode 150
A curated ordered list instead of 3000 random problems
Free
Striver's A2Z DSA sheet
India's most-followed DSA sheet
Free
GeeksforGeeks
Company-wise questions and theory
Free plan
Codeforces
Competitive programming contests
Free
CodeChef
Contests and practice, big Indian community
Free plan