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JSON Toolbox- Free online JSON tools

JSON to Markdown

Convert a JSON array of objects to a Markdown table online. Nested keys are flattened into columns.

  • 100% client-side, nothing uploaded
  • Instant results
  • Works offline once loaded
Input JSON

Empty

Markdown output

Empty

How it works

About this tool

This JSON to Markdown converter turns a JSON array of objects into a GitHub-flavoured Markdown table. The union of all keys becomes the header row and each object becomes a table row.

Nested objects are flattened with dot notation, and any pipe characters or line breaks inside values are escaped so the table renders correctly in READMEs, issues, and documentation.

Ideal for documenting sample API data, pasting comparison tables into pull requests, or publishing small datasets without a spreadsheet.

The conversion runs entirely in your browser, so your data stays private and results are instant.

JSON Toolbox processes all data locally in the browser. Nothing is uploaded to a server.

Common questions

Frequently asked questions

How do I convert JSON to a Markdown table?
Paste a JSON array of objects. A pipe table appears immediately — copy it into a README, issue, or docs page.
What input works best?
A JSON array of objects, where each object is a row. A single object is rendered as a one-row table and nested objects are flattened into columns.
Is the output GitHub-flavoured Markdown?
Yes. The table uses the standard pipe-and-dash syntax that GitHub, GitLab, and most Markdown renderers support.
Is my JSON uploaded?
No. Tables are built locally. Pipe characters and line breaks inside cells are escaped in your browser so the layout stays intact.

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