Text Chunker
Free online text chunker for RAG. Split long text into semantic chunks with customizable size and overlap. No signup, local browser processing - your data never leaves your device.
Best Practices: For RAG applications, use chunk sizes between 250-500 tokens with 10-20% overlap. This balances context preservation with retrieval efficiency. Adjust based on your specific model's context window.
How to Use Text Chunker
- 1Paste your long text into the input area
- 2Set the desired chunk size (typically 500-1000 tokens for RAG)
- 3Configure the overlap percentage (10-20% recommended)
- 4Click split to generate text chunks
- 5Copy individual chunks or download all chunks for your RAG pipeline
Frequently Asked Questions
What is the best chunk size for RAG applications?
Typically 500-1000 tokens with 10-20% overlap works well for most RAG systems. The optimal size depends on your content type and the embedding model you use - longer chunks capture more context, shorter chunks improve retrieval precision.
Does chunking affect meaning or lose context?
Strategic overlap between chunks helps preserve context and meaning. Our tool lets you customize overlap percentage so important information at chunk boundaries is not lost, ensuring better retrieval quality for your RAG pipeline.
Can I chunk text in Chinese or other languages?
Yes, the text chunker handles multilingual content including Chinese, Japanese, and Korean. CJK text is split by character count with configurable chunk sizes optimized for each language.
Is Text Chunker free, and do I need to sign up or upload my files?
Text Chunker is 100% free to use with no signup, no registration, and no usage limits. All processing happens locally in your browser - your files and data never leave your device, so no upload is required and your privacy is fully protected.