Markdown Formatter
A markdown formatter that shows you the page, not just the pipes
Most Markdown tools either prettify text in isolation or show a preview in another app. We wanted one screen where you can clean up messy source, see the formatted result, and check the rendered page before you commit a file or paste into a CMS.
Format once, verify in the same session
Paste a draft from a ticket, an AI export, or a wiki download and run Format Markdown. The middle column shows normalized spacing—headings with a space after the hash, lists with consistent markers, and tables padded so columns line up in the editor. The preview column updates from that output so you can confirm headings, code fences, and Mermaid blocks without opening a second tab.
When you need stricter cleanup, turn on Tidy mode to normalize bullet style and ordered-list numbering while keeping the same preview path. If the result looks right, export a .md file or send the document to our Markdown Viewer for longer editing, PDF export, or folder import. Nothing runs on a server; the formatter stays in your browser.
Format Markdown nowThree columns, one workflow
Input, formatted Markdown, and rendered preview sit side by side so you catch layout breaks before share day.
Stronger than spacing-only tools
Table alignment, fence-aware fixes, and optional Tidy mode go beyond adding blank lines around headings.
Same renderer as our viewer
Preview uses the Markdown Viewer stack—themes, math, and diagrams match what readers will see.
Markdown formatter online: format, preview, and export without leaving the page
Built for drafts that look fine in a text box but fall apart in GitHub, Notion, or static site generators.
Live preview tied to formatted output
After you format, the preview reads the cleaned column—not the raw paste—so you see the same structure you are about to ship. That is the main difference from format-only sites: you do not copy text into another viewer to find out the table broke.
- Preview updates from formatted Markdown, not your first paste.
- Table columns can be padded for readable pipe tables.
- Import and export .md without leaving the browser.
- Open the same file in Markdown Viewer when you need more tools.
How to use this markdown table formatter in a real cleanup loop
Documentation maintainer
Format AI-generated release notes before opening a pull request. The preview column catches fences and tables that plain diff tools miss.
Support engineer
Clean repro steps pasted from a web app so numbered lists and code blocks render correctly in your knowledge base.
Content publisher
Normalize spacing on CMS exports, then spot-check callouts and tables in preview before republishing.
Why teams keep a markdown formatter in the browser
Short feedback from people who format before review—not after a broken publish.
The preview column sold it for me. I format, scroll once, and know whether the table and Mermaid block survived—no second tool.
Technical writer
Open-source docs
"Tidy mode is optional, which matters for our changelogs. Default format fixes spacing without rewriting every list marker."
Release manager
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"Aligned pipe tables in the source pane make review comments faster. Preview still catches what alignment cannot."
Engineer
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FAQ about this markdown formatter
Ready to format and preview in one place?
Paste messy Markdown, format it, check the preview, then export or open the viewer.
Markdown formatter
- Formatted source plus live preview
- Table alignment and syntax-aware cleanup
- Optional Tidy mode for lists
- Import, export, and viewer handoff
Tip: scan the preview column before you export—especially for tables and diagrams.
Keep docs readable before review
Use formatting as a quick gate between draft and publish.