Add or remove leading spaces from every line. Useful for nesting content inside lists or blockquotes.
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Free Markdown Indent / Outdent adds or removes leading spaces from every line in a Markdown document. Indent prepends spaces (useful for nesting content inside list items or blockquotes). Outdent removes them (useful for un-nesting). Code blocks are never touched.
Privacy: This tool runs entirely in your browser. Your text is never uploaded, logged, or cached. Close the tab and it's gone. Verify in DevTools → Network: zero requests fire.
Nesting a paragraph under a list item means adding exactly 2 or 4 spaces to every line. Doing that manually for 50 lines is tedious. This tool handles it instantly, for free.
| Input | Output | Typical size | Speed | Login needed |
|---|---|---|---|---|
| Markdown (.md) | Indented/outdented Markdown | Up to 5 MB | < 50 ms | No |
Here's what this free tool does in detail — every feature is built to solve real problems, runs entirely in your browser, and is free forever.
Indent prepends 1-8 spaces to every non-blank line outside code blocks. Outdent removes up to that many leading spaces. Lines with fewer leading spaces than the setting are left-aligned (no negative indentation).
For wrapping long lines at a specific column instead, see the Free Markdown Line Wrapper.
Fenced code blocks (``` and ~~~) are tracked and skipped. Your code examples keep their original indentation, which matters for Python, YAML, and Makefiles.
For broader whitespace cleanup, pair with the Free Markdown Whitespace Normalizer.
Blank lines are left completely empty (no trailing spaces added). This keeps the document clean and avoids git diffs that only contain whitespace changes on empty lines.
To join hard-wrapped paragraphs after outdenting, use the Free Markdown Paragraph Unwrapper.
The stats line reports exactly how many lines were changed. For indent, that's every non-blank line outside code blocks. For outdent, it's every line that actually had leading spaces removed. Zero surprises.
For structural changes like shifting heading levels, use the Free Markdown Heading Shifter.
Drop a document into the input. Click Load example for a typical snippet.
Indent adds spaces, Outdent removes them. Set 1-8 spaces per level.
Every non-blank line is adjusted. Code blocks are untouched.
Indent a paragraph or code block to sit under a list item.
Add indentation before prefixing with > markers.
Outdent content that was over-nested in a previous revision.
Remove unwanted leading spaces from text pasted from HTML or PDF.
See how indentation affects Markdown rendering in real time.
Yes. Free forever, no account required.
It prepends N spaces to every non-blank line outside code blocks.
It removes up to N leading spaces from every non-blank line.
No. Fenced code blocks are skipped entirely.
This tool uses spaces. Most Markdown renderers treat 2 or 4 spaces as one level.
No. Runs 100% in your browser.