JSON to CSV Converter

Convert JSON files to CSV online for free. No upload required — runs entirely in your browser. Turn API responses or database exports into spreadsheet-ready CSV files instantly.

Drop a JSON file here, or click to select

Drop file here or click to browse

Choose File

Checks that make conversion safer

Before converting

Confirm the format required by the app, upload form, or person receiving the file.
Check details that may change during conversion, such as transparency, animation, or image quality.
Decide whether your main goal is compatibility, editing, or a smaller file size.

After converting

Open the converted image and check colors, text edges, and visible artifacts.
If the result is too large, continue with compression or resizing.
Use PNG for editing stages, and JPG or WebP when the final goal is sharing or publishing.

Need help choosing the right workflow?

The guide section covers format differences, compression tips, and common PDF workflows so you can choose the right tool with more context.

Browse guides

Common next steps

Image Compress

Useful when the converted file still needs to be lighter before upload or sharing.

Resize Image

A practical next step when the destination also has width or height requirements.

Image to PDF

Helpful when the converted images eventually need to be packaged into a PDF.

Why convert JSON to CSV?

API responses, database exports, and log files are often delivered as JSON. Converting them to CSV makes the data easy to open in Excel, Google Sheets, or any data analysis tool. Nested objects are flattened using dot notation (e.g. address.city), so even complex JSON structures become readable as a flat table.

What JSON structures are supported

The main supported format is an array of objects ([{...}, {...}]). Each object becomes one row in the CSV, and all keys across the array become the column headers. Nested objects are flattened using dot notation.

Array values inside objects are serialized as JSON strings in a single cell. If the root is a single object instead of an array, it is treated as a one-row CSV.

Common use cases

Use it when you want to inspect API data in a spreadsheet, when converting a database export from JSON to CSV for analysis, or when you need to share structured data with non-technical teammates.

All processing runs in your browser, so JSON files with sensitive or proprietary data are safe to convert.

Things to know before converting

An array of objects ([{...}]) at the root level is the recommended format.
Nested objects are flattened with dot notation (e.g. user.name).
Array values inside objects are serialized as JSON strings.
Output is UTF-8 encoded with BOM for Excel compatibility.

JSON vs CSV

Why convert

A conversion usually makes sense when the target format matches the next app, site, or workflow more naturally.

Tradeoff

Most format choices come down to tradeoffs between compatibility, compression, transparency, and editing behavior.

Best mindset

Start with the destination. Once you know where the file needs to end up, the right format is usually easier to pick.

Next step

After converting, people often continue with CSV to JSON or CSV to Parquet.

How to use

Upload your JSON file
Check the data preview and row/column counts
Click "Convert to CSV"
Download the resulting CSV file

FAQ

What JSON formats are supported?

An array of objects ([{...}, {...}]) is the primary format. A single root object is treated as a one-row CSV. Deeply nested objects are flattened with dot notation.

Is my data safe?

Yes. All processing runs locally in your browser. Your files are never uploaded to a server.

Will the CSV open correctly in Excel?

Yes. The output CSV includes a UTF-8 BOM so Excel on Windows opens it correctly without encoding issues.

Is there a file size limit?

The limit depends on your browser's available memory. Most JSON files up to a few dozen megabytes should convert without issues.