How can I get free LeetCode company tags?

DSAPatterns.io provides free LeetCode company tags for 120+ companies including Google, Amazon, Meta, Microsoft, Apple, Netflix, Uber, and Stripe. Filter 3,000+ problems by company frequency without LeetCode Premium.

Is DSA Patterns a LeetCode Premium alternative?

Yes. DSA Patterns is a free LeetCode Premium alternative for company-wise frequency lists, 19 DSA pattern cheat sheets, Blind 75 and NeetCode 150 paths, and a Chrome extension for pattern hints on LeetCode problem pages.

Where is the 18 or 19 DSA patterns cheat sheet?

DSA Patterns includes a free 19-pattern LeetCode cheat sheet covering the 18 core interview patterns (Sliding Window, Two Pointers, Binary Search, BFS, DFS, Dynamic Programming, and more) plus templates and hints for each pattern.

What is DS algorithm pattern recognition?

DS algorithm pattern recognition is identifying which of the core DSA patterns applies to a coding problem. DSA Patterns maps 3,000+ LeetCode problems to patterns so you practice recognition, not memorisation.

Is there a free DSA prep tool for India?

Yes. DSA Patterns is free worldwide, including India. Browse company tags for product and service companies hiring in India, switch to Hinglish UI, and use pattern cheat sheets without a premium subscription.

Does the LeetCode pattern detection Chrome extension work?

The DSA Patterns Chrome extension shows pattern-based hints and complexity notes on LeetCode problem pages — a free LeetCode pattern detection helper alongside the web cheat sheets.

Is DSA Patterns free to use?

Yes. All pattern cheat sheets, company frequency data, curated lists, and browsing are free.

Trie (Prefix Tree) Pattern — LeetCode DSA Guide