Obsidian LeetTrack

[!NOTE] Disclaimer: This plugin is vibe coded — built rapidly with AI assistance and creative energy rather than traditional software engineering rigor. It works well for my personal workflow, but expect rough edges. Use at your own risk, and feel free to open issues or contribute fixes!

Create organized LeetCode problem notes with auto-fetched metadata, smart topic categorization, and spaced repetition review tracking — all inside your Obsidian vault.

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Features

One-Click Problem Note Creation

Enter a LeetCode URL, Problem ID, or title slug — the plugin fetches all metadata (title, difficulty, topic tags) from the LeetCode GraphQL API and creates a fully structured note.

Accepts any input format:

• Full URL: https://leetcode.com/problems/trapping-rain-water/
• Problem ID: 42
• Title slug: two-sum, 3Sum

Smart Topic Categorization

Notes are automatically filed into topic folders matching the LeetCode Top Interview 150 roadmap:

Problems not in the Top 150 are categorized by their LeetCode tags. You can also define custom topic mappings in settings.

Mastery & Spaced Repetition System

Track your learning progress with a three-level mastery system:

The plugin manages the full learning lifecycle:

Import Problem → Study / Solve → Set Mastery
       ↑                              ↓
  Reschedule  ←  Update Mastery  ←  Review

Review scheduling is automatic — when you update mastery, the next review date is calculated and stored in the note's frontmatter. The "Show Problems Due for Review" command lists all overdue problems.

You can also mark a problem as reviewed without changing its mastery level — this bumps the review date forward based on the current mastery and increments the review count. Available as a command or via the ✅ button in the Due Reviews modal.

Batch Import

Import multiple problems at once. Paste a list of IDs, URLs, or slugs — one per line — and the plugin creates all notes with progress tracking and a summary showing imported/skipped/failed counts.

Auto-Updating Hub Dashboard

A living 00 - LeetCode Hub.md dashboard with:

• Due for Review — problems requiring immediate attention
• Progress Overview — mastery distribution (Red/Yellow/Green)
• Statistics — study streak, solve counts, difficulty distribution
• Review Queue — all Red and Yellow problems
• Mastered Problems — your Green list
• Topic Breakdown — categorized problem lists

LeetCode CN Support

Toggle between leetcode.com and leetcode.cn in settings for users in China.

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Installation

Community Plugins (Recommended)

1. Open Settings → Community plugins → Browse
2. Search for "LeetTrack"
3. Click Install, then Enable

Manual Installation

1. Download main.js, manifest.json, and styles.css from the latest release
2. Create a folder <your-vault>/.obsidian/plugins/obsidian-leet-track/
3. Copy the three files into that folder
4. Restart Obsidian and enable the plugin in Settings → Community plugins

BRAT (Beta Testing)

1. Install the BRAT plugin
2. Add beta plugin: Chillaxhson/obsidian-leet-track

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Usage

Commands

All commands are accessible via the Command Palette (Cmd/Ctrl + P):

The ribbon icon (code icon in the left sidebar) opens the Create new problem note modal.

Frontmatter

Each problem note includes structured YAML frontmatter:

---
difficulty: Medium
mastery: red
tags:
  - leetcode-interview-150
  - array
  - two-pointers
created-date: 2026-08-28
review-date: 2026-08-29
review-count: 0
---

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Settings

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FAQ

The LeetCode API request failed

The plugin uses the public LeetCode GraphQL API. If you get rate-limited (HTTP 429), the plugin will automatically retry with exponential backoff (up to 3 retries). If it still fails, wait a few minutes and try again.

Can I customize the note template?

Yes — the template is stored in the plugin settings (accessible via data.json in your vault's plugin folder). Available template variables:

{{id}}, {{title}}, {{difficulty}}, {{mastery}}, {{tags}},
{{url}}, {{topicFolder}}, {{created-date}}, {{review-date}},
{{description}}, {{#description}}...{{/description}}

Does it work on mobile?

Yes. The plugin uses only Obsidian's built-in requestUrl API (no Node.js/Electron dependencies) and is marked isDesktopOnly: false.

I already have notes from the old LeetCode Helper plugin

The plugin automatically migrates legacy settings and reads both the old status field and the new mastery field from frontmatter.

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Contributing

Development Setup

git clone https://github.com/Chillaxhson/obsidian-leet-track.git
cd obsidian-leet-track
npm install
npm run dev    # Watch mode — rebuilds on every save

Building for Production

npm run build  # Type-check + minified production build

Project Structure

src/
├── main.ts              # Plugin entry point
├── types.ts             # All TypeScript interfaces
├── constants.ts         # Top 150 map, topic logic
├── api/
│   └── leetcode.ts      # GraphQL client with retry
├── services/
│   ├── problem-service.ts    # Note creation
│   ├── review-service.ts     # Mastery lifecycle
│   └── dashboard-service.ts  # Hub dashboard
├── modals/
│   ├── input-modal.ts        # Single problem input
│   ├── batch-import-modal.ts # Batch import
│   └── review-modal.ts       # Mastery update
├── settings.ts          # Settings tab + migration
└── utils/
    ├── parser.ts        # HTML → Markdown
    └── date.ts          # Review date calculations

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License

MIT © Chillaxhson