Free Online JSON to CSV Converter
Free Online JSON to CSV Converter
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Convert JSON to CSV or CSV to JSON with support for nested data, custom delimiters, and column selection. Prepare structured data for spreadsheets, databases, or APIs in seconds.
JSON to CSV
CSV to JSON
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Transform JSON and CSV Data FastConvert between JSON and CSV formats with Thunderbit’s Chrome extension—no manual formatting required.
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Transform JSON and CSV Data Fast
Thunderbit’s converter handles nested JSON, custom delimiters, and column selection, making it easy to prepare data for spreadsheets, databases, or APIs. Switch between JSON and CSV formats in just a few clicks, with consistent handling of missing values and export-ready results.
Use Thunderbit to automate data extraction from websites, then format and export your results directly to Google Sheets, Airtable, or Notion. Streamline your data pipeline and save time on repetitive transformation tasks.
How to Convert JSON to CSV Using Thunderbit
STEP 1Download and InstallDownload and install the Thunderbit Chrome Extension from the Thunderbit Chrome Extension Download Page. Once installed, log in or create a free account to get started.
STEP 2Open ExtensionNavigate to the Thunderbit Chrome Extension and select the "JSON to CSV Converter" tool. Choose the "JSON to CSV" tab. Paste your JSON data into the input field and adjust settings such as delimiter, flattening, columns to include, and missing value handling as needed.
STEP 3Click the Convert ButtonClick the "Convert" button. Thunderbit will process your JSON data and generate a CSV output based on your settings. You can then copy the CSV text or download it as a .csv file for use in spreadsheets, databases, or other applications.
Learn how to convert JSON to CSV and CSV to JSON for structured data workflows
Transform JSON to CSV with Custom Options
Convert complex JSON data into CSV format for use in spreadsheets, databases, or data pipelines. The tool supports flattening nested JSON, customizable delimiters, and selective column export. This is ideal for data analysts, developers, and business users who need to prepare structured data for reporting or integration. By automating the conversion, you can quickly generate clean CSV files from raw JSON, saving time on manual formatting.
Convert CSV to JSON for API and App Integration
Easily turn CSV files into JSON arrays, making them ready for use in web applications, APIs, or data processing scripts. The tool allows you to specify which columns to include and how to handle missing values, ensuring the output matches your requirements. This feature is especially useful for developers and teams who need to migrate data between spreadsheet tools and modern software platforms.
Prepare Data for Spreadsheets, Databases, and Pipelines
Export your converted data as plain text or downloadable files, ready for immediate use in Excel, Google Sheets, Airtable, or database imports. The tool’s flexible settings let you match the output to your workflow, whether you’re building reports, loading data into a CRM, or feeding information into automated pipelines. Consistent handling of missing values and column selection reduces the risk of errors during import.
Handle Nested Structures and Missing Values with Precision
Flatten nested JSON objects into columns or manage missing data with custom values, nulls, or blanks. This ensures your data remains consistent and usable, even when dealing with complex or incomplete datasets. The tool is well-suited for anyone working with real-world data, where structure and completeness can vary. By providing granular control, it helps maintain data quality across different formats and systems.
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What users say about Thunderbit
Taryn W.Growth Strategist@Thunderbit changed how I run competitor research. I click 'AI Suggest Fields,' and it builds a clean table across paginated results—no coding, no CSS. Huge time-saver when analyzing product data from long-tail marketplaces.
Miles T.Sales Development ConsultantI use Thunderbit to grab emails and phone numbers from directories. It extracts clean contact info in one click, and exporting to Sheets or Notion takes seconds. No extra setup, no coding—just usable data ready to work with.
Rhea C.E-commerce AnalystThunderbit helps me monitor SKU data across multiple pages. I scrape the listings, then use Subpage Scraping to pull full product specs, pricing, reviews, and stock. The AI organizes everything into columns I define.
Cassian B.Real Estate AdvisorThunderbit's Scheduled Scraper makes real estate tracking easier. I describe the interval in plain English, and it automatically pulls updated listings, prices, and links without touching the setup again. Simple and very practical.
Dorian B.Content & SEO SpecialistI use Thunderbit's Field AI Prompts to clean and tag scraped blog content. It extracts titles, authors, and even suggests categories. Works great across dynamic sites and subpages—perfect for building structured SEO datasets.
Lina K.Marketplace Operations LeadWe track SKUs from niche stores using Thunderbit. Cloud Scraping handles 50 pages at a time, and for login-required sites, we switch to browser mode. It’s fast, flexible, and doesn’t need ongoing maintenance or manual edits.
Jorge F.Inbound Sales ManagerThunderbit’s AI Autofill is a lifesaver. After scraping contact info, I use it to fill lead forms directly in my browser. I just select the tab, and it fills everything using the scraped row. No manual input needed.
Alina D.Freelance ResearcherI rely on Thunderbit for extracting data from PDFs, image-based sites, and infinite scroll pages. It handles messy formats with AI and delivers ready-to-export tables I can send to Google Sheets or Airtable in seconds.
Taryn W.Growth Strategist@Thunderbit changed how I run competitor research. I click 'AI Suggest Fields,' and it builds a clean table across paginated results—no coding, no CSS. Huge time-saver when analyzing product data from long-tail marketplaces.
Miles T.Sales Development ConsultantI use Thunderbit to grab emails and phone numbers from directories. It extracts clean contact info in one click, and exporting to Sheets or Notion takes seconds. No extra setup, no coding—just usable data ready to work with.
Rhea C.E-commerce AnalystThunderbit helps me monitor SKU data across multiple pages. I scrape the listings, then use Subpage Scraping to pull full product specs, pricing, reviews, and stock. The AI organizes everything into columns I define.
Cassian B.Real Estate AdvisorThunderbit's Scheduled Scraper makes real estate tracking easier. I describe the interval in plain English, and it automatically pulls updated listings, prices, and links without touching the setup again. Simple and very practical.
Dorian B.Content & SEO SpecialistI use Thunderbit's Field AI Prompts to clean and tag scraped blog content. It extracts titles, authors, and even suggests categories. Works great across dynamic sites and subpages—perfect for building structured SEO datasets.
Lina K.Marketplace Operations LeadWe track SKUs from niche stores using Thunderbit. Cloud Scraping handles 50 pages at a time, and for login-required sites, we switch to browser mode. It’s fast, flexible, and doesn’t need ongoing maintenance or manual edits.
Jorge F.Inbound Sales ManagerThunderbit’s AI Autofill is a lifesaver. After scraping contact info, I use it to fill lead forms directly in my browser. I just select the tab, and it fills everything using the scraped row. No manual input needed.
Alina D.Freelance ResearcherI rely on Thunderbit for extracting data from PDFs, image-based sites, and infinite scroll pages. It handles messy formats with AI and delivers ready-to-export tables I can send to Google Sheets or Airtable in seconds.
Frequently Asked Questions
Extract Data using AI
Easily transfer data to Google Sheets, Airtable, or Notion
Chrome Store Rating
PRODUCT HUNT#1 Product of the Week