LeetCode's default interface is functional, but it's missing features that can dramatically speed up your prep: timers, AI hints, company tags, GitHub sync, and more.
The good news? Chrome extensions fill these gaps. The bad news? There are dozens of them, and most are mediocre.
This guide covers the 12 best LeetCode Chrome extensions in 2025, organized by category, with honest pros and cons for each.
| Category | Top Pick | Why |
|---|---|---|
| AI Hints & Learning | LeetCopilot | Context-aware hints, study notes, mock interviews |
| GitHub Sync | LeetHub v2 | Auto-upload solutions to GitHub |
| Timer & Tracking | LeetCode Timer | Difficulty-based time limits |
| Company Tags | CrackTech Company Tag | Free alternative to Premium company data |
| UI Enhancement | LeetCode Enhancer | Hide distractions, focus on code |
These extensions use AI to help you learn patterns, debug code, and avoid getting stuck.
What it does: An AI-powered Chrome extension that provides context-aware hints, debugging, mock interviews, and auto-generated study notes—directly on LeetCode.
Key Features:
Pricing: Free (currently in early beta).
Best for: Engineers who want to learn patterns, not just get answers.
Why It's #1: Unlike generic AI chatbots, LeetCopilot is embedded in LeetCode. It understands your context—your code, the constraints, your history—and gives tailored hints instead of generic solutions.
What it does: Provides smart hints, code quality analysis, and an interactive chat assistant.
Key Features:
Best for: Engineers who want feedback on their code quality, not just correctness.
What it does: A chatbot that generates detailed solutions, explanations, and hints for LeetCode problems.
Key Features:
Best for: Quick help when stuck, but be careful not to over-rely on instant solutions.
What it does: Adds explanations, company tags, and video solutions to each problem page.
Key Features:
Best for: Engineers who prefer video learning alongside text.
Track your progress and showcase your work by syncing solutions to GitHub.
What it does: Automatically uploads your accepted LeetCode solutions to a GitHub repository.
Key Features:
Best for: Building a public portfolio of your coding progress.
Why It Matters: Recruiters can see your consistency and problem-solving history at a glance.
What it does: A personal LeetCode coach that also syncs solutions to GitHub.
Key Features:
Best for: Engineers who want coaching and progress tracking in one tool.
Interview problems are time-boxed. These extensions help you practice under realistic constraints.
What it does: Tracks time spent on each problem with customizable limits.
Key Features:
Best for: Building speed and simulating real interview time pressure.
What it does: Tracks your LeetCode progress automatically—no manual spreadsheets.
Key Features:
Best for: Engineers who want effortless progress tracking.
What it does: Helps you manage spaced repetition for LeetCode problems.
Key Features:
Best for: Long-term retention through spaced repetition.
Access Premium-like features without paying—or supplement your Premium subscription.
What it does: Shows which companies ask each LeetCode problem—without Premium.
Key Features:
Limitation: Data is crowd-sourced, not official. May not be as accurate as LeetCode Premium.
Best for: Engineers targeting specific companies who don't have Premium.
What it does: Provides some Premium features for free, including company tags.
Key Features:
Best for: Supplementing free-tier LeetCode with basic company data.
Reduce distractions and customize the LeetCode interface.
What it does: Declutters the LeetCode interface so you can focus on coding.
Key Features:
Best for: Engineers who get distracted by difficulty labels or locked problems.
What it does: Enables dark mode for LeetCode.
Key Features:
Note: LeetCode now has an official dark mode, but this extension offers additional polish.
What it does: Replaces LeetCode's Easy/Medium/Hard labels with more precise contest ratings.
Key Features:
Best for: Competitive programmers who prefer Codeforces-style ratings.
When you're truly stuck, these extensions help you find solutions quickly.
What it does: Automatically opens verified solutions when you're viewing a problem.
Key Features:
Warning: Use sparingly! Over-relying on solution finders hinders learning.
What it does: Embeds video tutorials directly on the problem page.
Key Features:
Best for: Visual learners who prefer watching solutions.
You don't need all 12 extensions. Here's the recommended combo:
| Goal | Extensions |
|---|---|
| Learn patterns | LeetCopilot |
| Track progress | LeetHub v2 + LeetCode Timer |
| Target companies | CrackTech Company Tag |
| Reduce distractions | LeetCode Enhancer |
| Spaced repetition | DSA Memoizer |
Will these extensions get my LeetCode account banned?
No. Extensions that read problem data or add UI features don't violate LeetCode's terms. Extensions that "auto-solve" problems during assessments could be flagged—avoid using AI solvers in timed tests.
Do I need LeetCode Premium if I use these extensions?
Not necessarily. Extensions like CrackTech provide basic company tags for free. However, Premium offers official data, frequency metrics, and exclusive problems that extensions can't replicate.
Which extension is best for learning?
LeetCopilot is designed for learning. It gives progressive hints instead of full answers and generates study notes for retention.
Can I use multiple extensions at once?
Yes, but be mindful of overlap. Too many extensions can slow down your browser and clutter the interface.
The right Chrome extensions can transform LeetCode from a frustrating grind into a structured learning experience.
Start with these:
Install a few, experiment, and keep the ones that fit your workflow. Happy grinding!
LeetCopilot is a free browser extension that enhances your LeetCode practice with AI-powered hints, personalized study notes, and realistic mock interviews — all designed to accelerate your coding interview preparation.
Also compatible with Edge, Brave, and Opera
Add to Chrome for free