JSON to CSV converter
Flatten JSON from an API or export into a spreadsheet you can sort, filter and import.
Free · UnlimitedWhat it does
Choose a .json file: an array of objects, or an object that contains one (as most APIs return). Each object becomes a row. Nested objects are flattened into columns such as 'variants.price', simple lists are joined with commas, and complex lists are kept as JSON text in their cell, so no data is lost. Download the result as CSV, Excel, TSV or another format.
Typical uses
Turning an API response or webhook log into something a person can read, preparing data from an app for a store import, checking a product feed, or handing developer data to a colleague who works in Excel. Columns are created in the order keys first appear, and objects without a key simply get an empty cell.
How to use it
Choose your file or drop it on the page. The format, number of rows and columns, text encoding and delimiter are detected and shown, so you can check the file was read correctly. Pick the format to convert to (it's already selected on this page), adjust the options if you need to, look over the preview of the first rows, and download. Your original file stays exactly as it was.
Private and built for big files
Product catalogues, order exports and supplier price lists often contain hundreds of thousands of rows and information you'd rather not upload anywhere. The toolkit reads the file on your device, in a background worker so the page stays responsive, and shows a preview of the result before you download it. Nothing is sent to Findora's server, and the tool keeps working without an internet connection once the page has loaded.
Good habits for spreadsheet files
Keep the original export untouched and work on copies, name new files with the date (for example products-2026-10-17.csv), and glance at a few rows in the preview after every step. Before importing products, check the file with Findora's CSV import validator, so a wrong column or price is caught before it reaches your store.
Part of the CSV Toolkit
This page opens Findora's CSV Toolkit with this mode selected. Switch modes at the top to convert between CSV, Excel, JSON, XML, TSV and PDF, merge or split files, remove duplicates, rename and reorder columns, view and search large files, fix the text encoding or change the delimiter, all with the same file.
Frequently asked questions
Is my file uploaded?
No. The file is read and converted in your browser and never leaves your device. Your activity history only records the file name, the mode and the number of rows.
What if objects have different keys?
Every key found becomes a column; objects that don't have it get an empty cell.
How are nested lists handled?
Lists of plain values are joined with commas. Lists of objects are kept as JSON text in one cell.
How big can the file be?
Up to 100 MB. Large files are read in the background, so the page stays responsive; the preview shows the first rows and the download contains everything.
Does it use credits?
No. You need to be signed in to see and download the result, but the CSV toolkit is free and unlimited.
Need the full product list? Export the whole store with Findora
Discover every public product of a Shopify or WooCommerce store and export it to CSV. 10 free credits when you sign up.