JSON formatter
JSON, CSV, Base64, and Markdown stay in this tab.
Input
Output
How to use this tool
Pretty-print JSON, convert CSV, Base64, URL encoding, and Markdown in this tab.
Open Text & data
JSON pretty-print is the default mode. Paste on the left.
Paste the text
The right pane formats as you type. Switch mode for CSV, Base64, or Markdown.
Copy or download
Copy the result, or download a file. You can also open a .json / .csv / .md from disk.
FAQ
Is this a JSON formatter?
Yes. Pretty-print or minify JSON in this tab. Conversion runs as you type.
Can I convert CSV to JSON?
Both directions: CSV → JSON and JSON → CSV.
Does it encode Base64 and URLs?
Yes. Encode or decode Base64 and URL components, including Unicode text.
Can I turn Markdown into HTML?
Yes, and HTML back into Markdown. Copy or download the result.
Is my text uploaded?
No. You can also open a local file; it never leaves this tab.