JSON to CSV Converter
Flatten JSON arrays into CSV so analysts can filter and chart in spreadsheets.
Comma-separated values with a header row — opens in Excel, Sheets and Numbers.
Choose a file or drag and drop
Drop your JSON file here or
Choose file · Drag & drop · Public file link
- Processed on your device
- No conversion file stored on our servers
- Maximum file size: 100 MB
Conversion runs in your browser. Files are not uploaded to Format Convertly servers.
Processed on your device
No conversion file stored on our servers
Conversion Settings
Customize the output to match your needs.
Convert Quality
92%Quality slider applies when the target is JPG, WebP, or AVIF.
Output
Output options for this format are applied automatically during browser conversion. Drop your file above to begin.
Advanced settings
Additional Options
How to Convert JSON to CSV
Open the JSON → CSV converter
Open the JSON to CSV converter on Format Convertly.
Add your JSON file
Paste or drop a JSON array of similar objects in the browser.
Download CSV
Convert and download CSV for Excel, Sheets, or database import.
Why Convert JSON to CSV?
Private by design
JSON → CSV runs in your browser. Files are not uploaded to a remote conversion queue.
Ready for the next step
Convert when a site, editor, or teammate expects CSV instead of JSON.
Preserve detail
CSV: none or container. Typically lossless or lightly transformed for editing and archival use.
Wide compatibility
JSON is commonly used for REST API bodies and App configuration (package.json and friends).
CSV vs JSON
A quick side-by-side before you convert — deeper comparison lives on the full guide.
| Feature | JSON | CSV |
|---|---|---|
| Shape | Nested trees OK | Flat table |
| Best for | APIs / apps | Spreadsheets / ETL |
| Types | Native JSON types | All text (inferred) |
| Multiple tables | Yes via structure | No |
| Human sheet UX | Poor without conversion | Excellent |
Choose JSON when…
- API responses
- Nested configs
- App state interchange
Choose CSV when…
- Excel/Sheets workflows
- Database import
- Open data tables
What happens to quality?
JSON: JSON compression: none or container. Lossless (or non-destructive packaging) keeps reconstructable data — size savings come from packing efficiency, not throwing detail away. Typical size profile: Compact; pretty-print increases size for readability. Quality note: Exact for supported literal types; no native date type CSV: CSV compression: none or container. Lossless (or non-destructive packaging) keeps reconstructable data — size savings come from packing efficiency, not throwing detail away. Typical size profile: Very compact versus XLSX for the same rows. Quality note: Lossless for text values; types are inferred by the importer Comma-separated values with a header row — opens in Excel, Sheets and Numbers.
Tip
Deeply nested JSON needs flattening rules; inconsistent keys create sparse columns.
When should I use CSV?
CSV: CSV is the lingua franca for moving tabular data between spreadsheets, databases, and scripts. It carries values—not formatting or formulas—so pair it with XLSX when people need filters, charts, and styled sheets. Best for Exporting SaaS and billing reports and Database import/export.
CSV format guide →When should I keep JSON?
Keep JSON when you still need to edit or when it already matches your audience. JSON is the default payload for web APIs and many app configs. It maps cleanly to programming types. Convert JSON to CSV when analysts need a flat table, or to YAML when humans must edit the same data as config.
JSON format guide →JSON · CSV
Related converters JSON
Related converters CSV
Frequently Asked Questions
More on quality loss: conversion quality guides · problem-solution guides
Does converting JSON to CSV reduce quality?
Often no for lossless or remux-style paths. Quality drops when you re-encode with lossy settings, downscale, or flatten features like transparency.
Can you recover quality after converting?
Not from a lossy output alone. Return to the original master (or a better source). Converting to a lossless format does not resurrect discarded detail.
Where can I learn more about conversion quality?
Browse Format Convertly’s Quality guides for topics like whether conversion reduces quality, JPG↔PNG myths, WebP/MP3/MP4 tradeoffs, recovery limits, and generational loss — each links to the right converter.
Will object order be preserved?
Column order generally follows keys encountered in the data; verify headers after export.
What is a JSON file?
JSON is a lightweight text format for structured data (objects, arrays, strings, numbers, booleans, null). JSON is the default payload for web APIs and many app configs. It maps cleanly to programming types. Convert JSON to CSV when analysts need a flat table, or to YAML when humans must edit the same data as config.
What is a CSV file?
CSV is a plain-text table where each line is a row and fields are separated by commas (or related delimiters). CSV is the lingua franca for moving tabular data between spreadsheets, databases, and scripts. It carries values—not formatting or formulas—so pair it with XLSX when people need filters, charts, and styled sheets.
Is JSON to CSV free?
Yes. Format Convertly conversions are free to use in your browser with no signup required.
Do you store my files?
No. Processing stays on your device. There is no conversion upload and no server-side copy of your content.
Ready to Convert Your Files?
JSON to CSV privately in your browser.