JSON to CSV Converter
Convert JSON objects or arrays into CSV with header control, flattening options, delimiters, and download support for spreadsheet-friendly exports.
Loading tool...
About JSON to CSV Converter
Convert JSON to CSV free online — directly in your browser. No upload, no signup, no waiting. Paste your JSON, get CSV instantly.
JSON to CSV Converter is a free browser-based tool for turning structured JSON into spreadsheet-friendly CSV. It supports arrays, objects, primitive values, configurable headers, custom delimiters, and optional object flattening for nested data. This makes it useful for developers, analysts, QA teams, operations staff, and anyone who needs to move application data into reporting, spreadsheet, or import workflows. JSON is ideal for machines and application logic, but CSV is still the easier format for many human-facing tasks such as spreadsheet review, manual exports, business analysis, and simple file imports. Converting from JSON to CSV lets teams take API responses, fixture datasets, config-like structures, or application exports and move them into a more tabular view. The flattening option matters because real-world JSON is often nested. Arrays of objects may contain sub-objects that are not naturally tabular until they are flattened into dot-notated fields. That makes the output more usable in spreadsheet tools without requiring manual restructuring first. This tool is especially practical for one-off export work. If you want to inspect API data in a spreadsheet, send a report to a non-technical stakeholder, or prepare a CSV import for another system, using a browser converter is faster than writing a custom transformation script. For development and data workflows, JSON to CSV is one of the most useful format shifts because it makes structured application data easier to inspect manually. This converter helps make that shift faster and more predictable.
Key features
- JSON-to-CSV conversion. Transforms arrays, objects, and simple values into a delimited tabular output.
- Nested object flattening. Helps convert deeper structures into spreadsheet-friendly columns using dot-style field paths.
- Delimiter and header options. Lets you configure output formatting to match the target spreadsheet or import system.
- Download and copy workflow. Move the resulting CSV into analysis, reporting, or import tasks quickly.
- Good for API and reporting data. Useful when app-native JSON needs to become easier for humans to review in rows and columns.
Common use cases
- Exporting API results to a spreadsheet. Developers and analysts can turn JSON responses into CSV for easier manual review.
- Preparing a report for non-technical stakeholders. Teams can convert application data into a format that works well in Excel and spreadsheet tools.
- Flattening nested records for inspection. JSON with nested fields becomes easier to read and sort in a table-like format.
- Creating a CSV import file from app data. Users can reshape structured data into a format another system is more likely to accept.
How to use it
- Paste or upload the JSON — Add the JSON object or array you want to convert into CSV.
- Choose export options — Set headers, delimiter choice, and flattening behavior based on the shape of the data.
- Run the conversion — Generate the CSV output from the parsed JSON structure.
- Review the CSV result — Check columns, delimiters, and flattened field names before exporting the file.
- Copy or download the CSV — Export the output for spreadsheet analysis, reporting, or import into another tool.
Examples
Array of objects
Input [{"name":"Jane","age":30},{"name":"John","age":28}]
Output name,age Jane,30 John,28
Flattened nested object
Input An array of user objects with nested profile fields
Output CSV columns such as `profile.city` and `profile.role` after flattening is enabled.
Single object export
Input {"status":"ok","count":2}
Output A one-row CSV representation with headers for each key.
Troubleshooting
The CSV columns look inconsistent
Cause Rows may not share the same object keys, or nested fields may vary between records.
Fix Normalize the JSON structure first or enable flattening and review the resulting column set carefully.
The converter rejects the JSON
Cause The input may not be valid JSON syntax even if it resembles JavaScript object notation.
Fix Validate the JSON first, then rerun the conversion with strict valid input.
Spreadsheet imports break the columns
Cause The target spreadsheet or system may expect a different delimiter or quoting behavior.
Fix Choose the delimiter that matches the target environment and verify the output in a spreadsheet before final import.
FAQ · 05
Why convert JSON to CSV?
JSON is great for applications, but CSV is easier to open in spreadsheets and tabular tools. Converting JSON to CSV is useful when you want to analyze data manually, share records with non-technical users, or import data into systems that prefer a row-and-column format.
Can this convert nested JSON?
Yes. The tool includes a flattening option for nested objects so complex structures can become more spreadsheet-friendly. This is especially useful for API responses or configuration-style objects that would otherwise be difficult to represent cleanly in CSV.
What JSON shapes work best?
Arrays of objects are usually the best fit for CSV conversion because each object naturally becomes a row and each key becomes a column. Single objects and primitive values can still be converted, but arrays of consistent records are the most practical structure for tabular export.
Can I change the delimiter?
Yes. Different systems expect different delimiters, such as commas or semicolons. Being able to control the delimiter helps when the CSV is intended for spreadsheets, regional settings, or import tools with specific formatting requirements.
Should I review the CSV before importing it elsewhere?
Absolutely. Conversion can produce technically valid CSV while still creating unexpected columns, flattened field names, or blank values depending on the JSON structure. It is always worth checking the output before sharing or importing it into another system.
Scenario examples
Practical input/output workflows for this tool live on a dedicated examples page.
Working in development tools? You may also need JavaScript Minifier, HTML to JSX Converter or HTML Viewer — part of our development tools toolkit.
Blog Posts About This Tool
Learn when to use JSON to CSV Converter, common workflows, and related best practices from our blog.
CSV to JSON: Convert Spreadsheet Data for APIs
Why CSV to JSON conversion matters for APIs, the structural choices that cause bugs, free browser-based conversion, and when to use a library instead.
Top Free Tools for Web Developers: Boost Your Productivity with Discover Web Tools
Top free web development tools in 2025: JSON formatters, regex testers, API clients, code minifiers, and more. All browser-based — no install, no signup.
Simplify React Development: The Ultimate HTML to JSX Converter Guide
Convert HTML to JSX for React in seconds. Key differences, common pitfalls, and how to use a free HTML to JSX converter online. No install required.