Instantly convert your spreadsheets and CSV data into clean, formatted JSON. Features an IDE-like interface with syntax highlighting, live analytics, and 100% secure client-side processing. No data leaves your browser.
Loading CSV Parser...
Drag and drop a `.csv` file, copy/paste data straight from Excel, or click "Sample Data" to test it out.
Use the Advanced Settings to change your delimiter (comma, tab, pipe), enable dynamic typing, or minify the output.
Instantly copy the highlighted JSON to your clipboard or download it directly as a `.json` file for your project.
"age": "25"? Enable our number parsing to output proper JSON integers and booleans like "age": 25 and "isActive": true.Use the "Has Header Row" toggle to change your data structure. If enabled, you get standard JSON objects. If disabled, you get a matrix.
[ { "id": 1, "name": "John" } ][ [ 1, "John" ] ]
No. This tool is built with 100% client-side technology (powered by PapaParse). Your spreadsheet data is parsed entirely inside your local web browser's memory, meaning it is never transmitted over the internet or saved to any database. It is completely safe for GDPR-sensitive or company data.
Directly uploading `.xlsx` files won't work because they are binary files, not text. However, the fix is easy: Open your file in Microsoft Excel or Google Sheets, click File > Download > Comma Separated Values (.csv). You can then drop that CSV file directly into our tool.
Yes! We have an "Auto-Detect" feature that usually handles this perfectly. If it struggles, you can use the "Delimiter" dropdown in the advanced settings to manually force the tool to parse by Tabs (\t), Semicolons (;), or Pipes (|).
Convert your datasets into clean, typed JSON payloads instantly without touching the command line. Enjoy IDE-level features right in your browser.
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