Split Markdown into RAG-Ready Chunks
Retrieval-augmented generation works best when source documents are broken into focused, self-contained chunks that fit an embedding model's context window. Long, unbroken Markdown files embed poorly and dilute retrieval quality. The Markdown Chunker turns a document into clean, meaningful segments in one click.
Chunk by Heading Level
Choose H1, H2 or H3 and the tool splits your document at every heading of that level or shallower. Each chunk keeps its heading text and all following content until the next boundary, preserving the natural structure of your notes, documentation and knowledge base.
Chunk by Character Count
When semantic structure is unavailable, split into fixed-size windows of N characters. The result is predictable, uniform chunks that map directly to token budgets.
Add Overlap to Preserve Context
Enable overlap so each new chunk begins a few characters before the previous one ends. This keeps sentences and ideas near the boundary intact, reducing information loss at retrieval time.
Copy or Download Every Chunk
Inspect each chunk individually with a one-click Copy button, or export the whole set as a single Markdown file where chunks are separated by HTML comments for easy tracking.
Private and Offline-Ready
Everything runs client-side. Your Markdown is processed using your browser's own JavaScript engine and never uploaded, making the tool safe for sensitive or confidential content.