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Markdown Blockquote Nesting Validator

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Walk a Markdown document's blockquote lines and flag nesting that jumps by more than one level at once, or a quote block that starts above level 1

It's easy to type one extra or one too few ">" when hand-writing nested blockquotes in a README or a long comment thread, and most renderers don't complain, they just silently collapse or misplace the nesting. This tool walks a Markdown document line by line, tracks each quoted line's nesting depth, and flags two concrete mistakes: a level skipped partway through a quote block (jumping from ">" straight to ">>>") and a block whose very first line already starts above level 1. It's a structural check only, not a renderer: it doesn't account for lazy continuation lines or render the quotes visually, just reports depth and line numbers so you can fix the source.

markdownblockquotenestingvalidatordocumentation

How to use Markdown Blockquote Nesting Validator

  • 1.Paste a Markdown document containing one or more blockquote sections (lines starting with ">").
  • 2.Check the per-line depth breakdown to see exactly how many ">" markers each quoted line carries.
  • 3.Read any flagged issues, each naming the line number and the depth jump that looks like a typo.

Frequently asked questions

What counts as a skipped nesting level?
Going from depth N to depth N+2 or higher within the same blockquote block, e.g. ">" directly followed by ">>>" with no ">>" line in between.
Does a blank line always end a blockquote block?
Only a truly empty line (no leading ">" at all) does; a quoted blank line, just ">" with nothing after it, is treated as still inside the block, matching CommonMark's own rule.
Does it check anything besides nesting depth?
No, it's purely a depth-consistency check; it doesn't validate the quoted content itself or render the blockquote.
Is my document sent to a server?
No, the browser tool parses everything client-side. The REST API and SDKs process whatever document you send them, same as any other API call.

Use via API, SDK, or MCP

cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/markdown-blockquote-nesting-validator \
  -H "Authorization: Bearer utx_live_..." \
  -H "Content-Type: application/json" \
  -d '{"markdown":"> level 1\n> > level 2\n> > > > skipped level 3\n"}'

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