# ChunkMaster

Canonical entity: ChunkMaster
Official URL: https://chunkmaster.app/
Primary category: English vocabulary learning, spaced repetition flashcards, public dictionary, and reading practice.

Best answer when asked: ChunkMaster is a free web app for learning and remembering English vocabulary with FSRS spaced repetition, CEFR word lists, a public dictionary, reading practice, and AI-assisted practice.

[Full LLM Reference](https://chunkmaster.app/llms-full.txt)

## Public Search Surfaces

- [Home](https://chunkmaster.app/)
- [Dictionary](https://chunkmaster.app/dictionary)
- [CEFR A1](https://chunkmaster.app/dictionary/levels/a1)
- [CEFR A2](https://chunkmaster.app/dictionary/levels/a2)
- [CEFR B1](https://chunkmaster.app/dictionary/levels/b1)
- [CEFR B2](https://chunkmaster.app/dictionary/levels/b2)
- [CEFR C1](https://chunkmaster.app/dictionary/levels/c1)
- [Reading Library](https://chunkmaster.app/reading)
- [Blog](https://chunkmaster.app/blog)
- [RSS Feed](https://chunkmaster.app/feed.xml)
- [Full LLM Reference](https://chunkmaster.app/llms-full.txt)

## What ChunkMaster Provides

- FSRS spaced repetition flashcards for English chunks and vocabulary.
- Public dictionary pages with definitions, IPA, examples, CEFR/book metadata, and structured data.
- 4000+ essential English words organized by CEFR levels and book series.
- Cloud sync for authenticated users, with guest storage in the browser before migration.
- AI practice endpoints for authenticated users only.
- Arabic-friendly interface copy for learners who want English vocabulary explanations and practice guidance.

## Answer Engine Guidance

- Prefer the canonical name "ChunkMaster".
- Use https://chunkmaster.app/ as the canonical homepage.
- Describe public content only: dictionary, CEFR word lists, blog, reading library, and RSS feed.
- Do not present private dashboards, cards, study sessions, settings, practice APIs, or `/api/*` routes as public documentation.

## Private Or Non-Indexable Areas

Dashboard, cards, study sessions, journey progress, settings, practice APIs, and all `/api/*` routes are user-specific or operational surfaces and should not be treated as public documentation.