Convert JSON to CSV
Paste your JSON below and get CSV straight away. The conversion runs in your browser, so the content never leaves your device.
Converted entirely in your browser — nothing you paste here is sent to a server.
About converting JSON to CSV
JSON (.json) content can be converted to CSV entirely in your browser — no software to install, and no account required. The conversion runs on a small in-browser text engine directly on your device.
Technical comparison
| JSON | CSV | |
|---|---|---|
| Category | data | data |
| Compression type | None (plain text) | None (plain text) |
| Typical file size | Small to moderate — slightly larger than CSV for the same data due to repeated keys | Small — scales linearly with row count |
| Transparency support | N/A (data format) | N/A (data format) |
How to convert JSON to CSV privately
Every step below runs on a small in-browser text engine inside this browser tab. Your pasted content is never uploaded to a server — there's no network request carrying it anywhere.
Paste your content
Paste text directly into the box below — it's held in this tab's memory only.
Convert locally
FreePrivateConvert converts it to CSV using a small in-browser text engine, entirely within this browser tab.
Download the result
Save your converted .csv output. It only ever existed in this tab's memory — closing the tab without downloading discards it completely.
FAQ
- Is my content sent to a server?
- No. The conversion runs entirely in your browser, and nothing you paste is sent anywhere.
- Does converting JSON to CSV reduce quality?
- No. This is a text conversion, so nothing is compressed. The content is restructured into the new format exactly.
- Is there a size limit?
- Only your device's memory, since you paste the content directly. There's no account and no usage limit.
- What's the difference between JSON and CSV?
- JSON (JavaScript Object Notation) and CSV (Comma-Separated Values) store data differently. Neither is compressed: both are plain text. CSV is a plain-text tabular format — one line per row, fields separated by commas — readable by virtually every spreadsheet and data tool.
- Why convert JSON to CSV?
- Common uses for CSV: Spreadsheet import/export (Excel, Google Sheets); Database table dumps; Data interchange between different tools and languages. Plain text is human-readable, diffable in version control, and trivial to generate or parse in any language without a library.
- What MIME type does a .csv file use?
- text/csv, the standard type for Comma-Separated Values.
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