CSV ↔ JSON Converter
Convert spreadsheet data to JSON and back, in your browser.
Drop a .csv, .tsv or .json file, or click to browse
Or paste text below
Ready
JSON will appear here
Paste, upload or load a sample to begin
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CSV to JSON Converter – Convert CSV & JSON Online
Convert CSV to JSON or JSON to CSV instantly. Handles quoted fields, custom delimiters and headers, all processed in your browser.
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What is CSV to JSON Converter?
Convert between CSV and JSON in either direction. Paste a spreadsheet export to get an array of JSON objects ready for an API or database seed, or paste a JSON array to get a CSV you can open in Excel or Google Sheets. Quoted fields, embedded commas and line breaks, and semicolon or tab delimiters are all supported. Nothing you paste is uploaded.
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- json
- converter
- spreadsheet
- data
- excel
Features
What you get with CSV to JSON Converter.
Both Directions
Turn CSV into a JSON array or JSON objects back into CSV.
Proper CSV Parsing
Handles quoted fields, escaped quotes, and commas or line breaks inside cells.
Custom Delimiters
Works with commas, semicolons, tabs and pipes.
Browser-Side Processing
Your data is converted in your browser and is never uploaded.
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Frequently asked questions
Common questions about CSV to JSON Converter.
Paste the CSV into the input, or drop a .csv file onto it. With the header option on, the first row becomes the JSON keys and each following row becomes an object in an array.
Switch to JSON → CSV and paste a JSON array of objects. Each object becomes a row, and the keys become the column headers.
CSV has no data types, so every value is read as a string, such as "41" instead of 41. Convert the values in your code after parsing if you need numbers.
Many European spreadsheets export with semicolons. Choose the semicolon delimiter so each value is split correctly.
When your data has no header row, the tool names the keys column_1, column_2 and so on, so every row is still converted.
No. Parsing and conversion run entirely in your browser, so the data you paste is not uploaded or stored.
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