Markdown Cleaner and Formatter

Fix messy Markdown in one click: bullets, numbering, headings, tables and extra blank lines.

1Paste your Markdown
2Check the result
3Copy or download

Automated Cleanup Rules

Normalize bullet lists (Convert *, + to -)Renumber broken ordered lists (1, 2, 3...)Auto-align table pipes & cell widthsPrevent heading skips (e.g. H1 to H3)Collapse consecutive empty linesTrim accidental trailing whitespaces

Cleaned & Beautified Markdown151 words

Formatted and standardized Markdown document

Raw Markdown27 lines

# Messy Markdown Document

## 1. Irregular Heading Step (Skipped H2)
This document has   lots of trailing spaces and unnecessary multi-line breaks.

- Inconsistent bullet point with asterisk
- Another inconsistent bullet with plus
- Standard bullet item
- Indented irregular item

1. First ordered item
2. Broken numbered item (jumped from 1 to 4)
3. Another broken number 9

| Name                                 | Category    | Price   | Rating |
| ------------------------------------ | ----------- | ------- | ------ |
| Wireless Mouse                       | Hardware    | $29.99  | 4.8    |
| Mechanical Keyboard                  | Hardware    | $119.00 | 4.9    |
| 4K Monitor Ultra Wide IPS Panel      | Hardware    | $499.00 | 4.7    |
| USB-C Cable Braided 2m Fast Charging | Accessories | $14.50  | 4.6    |

<div class="note">This is an accidental HTML div container that should be sanitized.</div>

## Next Section After Whitespace Gap
Everything is now formatted, normalized, and linted.

Formatted PreviewRendered GFM

Messy Markdown Document

1. Irregular Heading Step (Skipped H2)

This document has lots of trailing spaces and unnecessary multi-line breaks.

Inconsistent bullet point with asterisk

Another inconsistent bullet with plus

Standard bullet item

Indented irregular item

1. First ordered item
2. Broken numbered item (jumped from 1 to 4)
3. Another broken number 9

Name	Category	Price	Rating
Wireless Mouse	Hardware	$29.99	4.8
Mechanical Keyboard	Hardware	$119.00	4.9
4K Monitor Ultra Wide IPS Panel	Hardware	$499.00	4.7
USB-C Cable Braided 2m Fast Charging	Accessories	$14.50	4.6

<div class="note">This is an accidental HTML div container that should be sanitized.</div>

Next Section After Whitespace Gap

Everything is now formatted, normalized, and linted.

Characters:1,008

Words:151

Est. Tokens:~258

Reading time:1 min

Step-by-step guides

How to turn an Excel or Google Sheets table into a Markdown table

How to clean up a Markdown file

Paste your Markdown into the input box.
Choose the cleanup rules you want. All of them are on by default.
Copy the cleaned result or download it.

What each rule fixes

Bullet normalizing turns mixed *, + and - bullets into one style. Renumbering fixes ordered lists that go 1, 1, 1 or skip numbers. Heading repair stops jumps like H1 straight to H3, which confuse screen readers and table-of-contents generators.

Table alignment pads cells so the pipes line up in plain text. Blank line collapsing and trailing space trimming remove the small mess that editors and AI tools leave behind, which keeps Git diffs clean.

Frequently asked questions

Will it change my content?

No. It only changes formatting such as spacing, bullet symbols, numbering and heading levels. Your words stay the same.

Does it work on Markdown from ChatGPT or Claude?

Yes. To remove the Markdown symbols completely rather than tidy them, use the AI Text Cleaner with the plain text option.

Is it the same as a Markdown linter like markdownlint?

It covers the most common rules and fixes them for you, but it is not a full linter with every rule. For CI pipelines, use a command-line linter.

Did a file convert badly or something not work? Report a problem. Your files are never uploaded, so a sample file helps us fix it.