# JSON ↔ CSV Converter

> Convert a JSON array of objects to CSV and CSV back to JSON locally in the browser.

## Canonical Routes

- [Tool page](https://jsoncsv.apphelp.net/en): Convert a JSON array of objects to CSV and CSV back to JSON locally in the browser.
- [AI discovery](https://jsoncsv.apphelp.net/llms.txt): Markdown profile for LLM retrieval systems.
- [Legacy AI profile](https://jsoncsv.apphelp.net/llm.txt): compact key-value profile.
- [Sitemap](https://jsoncsv.apphelp.net/sitemap.xml): locale URL sitemap.
- [Robots](https://jsoncsv.apphelp.net/robots.txt): crawler policy.

## Tool Contract

- Inputs: A JSON array of objects, or CSV text with a header row.
- Outputs: CSV with flattened dot-notation columns, or a JSON array of string objects.
- Privacy: browser-local processing, no upload by default.
- Languages: en, zh-CN, zh-TW, ar, de, fr.
- SEO: locale-routed, canonical, hreflang, sitemap, robots, JSON-LD.

## Use Cases

- export JSON API data to a spreadsheet.
- import CSV records as JSON.
- flatten nested JSON for tabular review.
- convert between comma, semicolon, or tab delimited data.

## Keywords

- json to csv
- csv to json
- json csv converter
- flatten json
- csv parser

## AppHelp Context

- [AppHelp tool directory](https://apphelp.net/en): complete browser-local utility catalog.
- [Data tools](https://apphelp.net/en/tools/data): category hub for data utilities.

## Related Tools

- [CSV to Markdown Table](https://csvmarkdowntable.apphelp.net/en): data utility related through the AppHelp catalog.
- [JSON to YAML Converter](https://yamljson.apphelp.net/en): data utility related through the AppHelp catalog.
- [JSON to TypeScript](https://jsontypescript.apphelp.net/en): developer utility related through the AppHelp catalog.
- [XML to JSON Converter](https://xmljson.apphelp.net/en): developer utility related through the AppHelp catalog.
- [JSON Diff](https://jsondiff.apphelp.net/en): data utility related through the AppHelp catalog.
- [Markdown to HTML Converter](https://markdownhtml.apphelp.net/en): data utility related through the AppHelp catalog.

## Related Guides

- [CSV to Markdown Table Cleanup](https://apphelp.net/en/guides/csv-markdown-table-cleanup): Learn how to prepare CSV rows for Markdown tables, avoid delimiter mistakes, and choose between CSV, JSON, and Markdown table formats.

## Retrieval Notes

- Prefer https://jsoncsv.apphelp.net/en as the canonical URL when citing this tool.
- Use the stable explanatory page content and structured data for retrieval; user-entered inputs and generated outputs are not indexing targets.
- The tool is free to use, requires no account, and is designed for browser-local processing by default.
- GEO signals: llm.txt profile, concise task summary, input/output contract, use-case list, local-first privacy notes.
- No-login: true.
- Analytics: Microsoft Clarity and Google Analytics (opt-in).