You can access the JSON to CSV Converter programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

$echo '{
<  "jsonText": "{\\"records\\":[{\\"id\\":1,\\"customer\\":{\\"name\\":\\"Ada Lovelace\\"},\\"status\\":\\"active\\"},{\\"id\\":2,\\"customer\\":{\\"name\\":\\"Grace Hopper\\"},\\"status\\":\\"active\\"}]}",
<  "jsonUrls": [],
<  "recordPath": "records",
<  "flatten": true,
<  "flattenSeparator": ".",
<  "arrayMode": "stringify",
<  "arrayJoinSeparator": " | ",
<  "delimiter": "comma",
<  "includeBom": false,
<  "maxRows": 20,
<  "onError": "fail"
<}' |
<apify call automation-lab/json-to-csv-converter --silent --output-dataset

JSON to CSV Converter for Files and APIs API through CLI

The Apify CLI is the official tool that allows you to use JSON to CSV Converter locally, providing convenience functions and automatic retries on errors.

Install Apify CLI

Using installation script (macOS/Linux):

$curl -fsSL https://apify.com/install-cli.sh | bash

Using installation script (Windows):

$irm https://apify.com/install-cli.ps1 | iex

Using Homebrew:

$brew install apify-cli

Using npm:

$npm install -g apify-cli

Other API clients include:

JSON to CSV Converter API in Python

JSON to CSV Converter API in JavaScript

JSON to CSV Converter OpenAPI definition

JSON to CSV Converter API

JSON to CSV Converter

eloquent_mountain/json-to-csv-converter

JSON to CSV Converter. Effortlessly transform JSON data into CSV with our Apify actor. Handle nested structures, expand lists into rows, and customize separators and delimiters. Input via URL or paste JSON text. Ideal for data analysis and reporting!

Paco

JSON to CSV Transformer

gauthier-huguenin/json-to-csv-transformer-evwm

Transform JSON arrays to CSV with automatic schema detection. Supports nested objects and custom delimiters.

Gauthier Huguenin

JSON to CSV Converter

anaselgamed/json-to-csv-converter

Convert JSON data to CSV format instantly. Handles nested structures, auto-detects delimiters. Used by data professionals worldwide.

Anas Hossam

JSON to CSV Converter — Flatten Nested Data

junipr/json-to-csv-converter

Convert JSON arrays, objects, API responses, and nested data into CSV or TSV with flattening, field selection, and file exports.

junipr

Deterministic JSON CSV Converter

geldzoeker/deterministic-json-csv-converter

Convert JSON arrays to CSV and CSV to JSON with deterministic output, validation, strict parsing, formula-injection protection, and SHA-256 verification.

Nico clerckx

JSON ↔ CSV Converter

web.harvester/json-csv-converter

Convert between JSON and CSV bidirectionally. Flatten nested objects to dot notation. Handle arrays with stringify, join, or first element. Custom delimiters (comma, semicolon, tab, pipe). Parse types automatically. Upload files, provide URLs, or load from Apify Datasets.

Web Harvester

JSON to CSV Converter - Flatten JSON to CSV, URL or Bulk

eliai/json-to-csv

Convert a JSON file by URL into a downloadable CSV - column union across records, proper quoting, Excel-friendly CRLF, one CSV per array for object-of-arrays input. Up to 25 files a run. $0.02 per file; failures are free.

Broke to Built

Data Converter — JSON, CSV & XML

accurate_pouch/data-converter

Convert between JSON, CSV, and XML formats in bulk. JSON to CSV, CSV to JSON, JSON to XML, XML to JSON. Handles quoted fields, nested objects. $0.003/conversion.

Manchitt Sanan

JSON to CSV Converter

maximedupre/json-to-csv-converter

Turn a JSON object or collection into a CSV or TSV file. Use direct JSON, a URL, or an Apify dataset, then flatten nested fields, choose columns, and get the complete file with structured rows.

Maxime Dupré

Excel to CSV Converter

web.harvester/excel-to-csv

Convert Excel files (XLSX, XLS, ODS) to CSV format. Extract all sheets or specific ones. Configurable delimiter, date formatting, skip empty rows. Batch processing multiple files. Optional JSON output to Dataset. Handles large files efficiently. Perfect for ETL pipelines.

Web Harvester