๐Ÿ› ๏ธToolo

Online File Converter (CSV, JSON, Excel Converter Free)

Convert files between CSV, JSON, and Excel (XLSX/XLS) in your browser. Six conversion types, no server upload. Maximum 20MB per file.

Select Conversion Type

Choose your desired conversion type.

Convert CSV file to JSON format

Click or drag file here

CSV file ยท Max 20MB

How to Use

Supported Conversions

CSV Conversion

  • โ€ข CSV โ†’ JSON
  • โ€ข CSV โ†’ Excel
  • โ€ข JSON โ†’ CSV

Excel Conversion

  • โ€ข Excel โ†’ JSON
  • โ€ข Excel โ†’ CSV
  • โ€ข JSON โ†’ Excel

๐Ÿ’ก Note: All processing is done directly in your browser, and files are never sent to a server, ensuring complete security.

Why Convert CSV, JSON, and Excel Files Online?

Spreadsheets, APIs, and reports often use different formats. CSV is easy to share, JSON is common in web apps, and Excel is useful for review. This converter turns a table-shaped file from one of those formats into another without installing extra software.

Conversion runs in your browser with JavaScript (Papa Parse and SheetJS). Files are not uploaded to a remote server.

Key Features & Benefits

Built for CSV, JSON, and Excel table conversion in the browser:

  • Browser-Based Processing

    Parsing and export run locally in your browser. Files are not sent to a server for conversion.

  • Six Conversion Types

    CSV โ†’ JSON, JSON โ†’ CSV, Excel โ†’ JSON, Excel โ†’ CSV, JSON โ†’ Excel, and CSV โ†’ Excel. Excel input can be .xlsx or .xls. Excel output is .xlsx. JSON โ†’ CSV/Excel also accepts pasted JSON.

  • Table-Shaped Data

    CSV uses the first row as headers. Excel uses the first sheet only. JSON should be an array of objects. Nested objects and extra Excel sheets are not fully preserved.

  • Free, With a File Size Limit

    Convert one file at a time for free, with no account. Maximum file size is 20MB. Very large files can still run out of browser memory.

Frequently Asked Questions (FAQ)

Is my dataset private during conversion?

Yes. Conversion runs in your browser. Files are not uploaded to or stored on a processing server.

Can I convert large JSON or CSV files into Excel?

Up to 20MB per file. Success still depends on your browser's memory. There is no server queue, and there is no guaranteed size beyond that limit.

Do I need to install Python scripts or Excel plugins?

No. The converter runs in Chrome, Safari, Firefox, and Edge without extra software. JSON for CSV/Excel should be an array of objects, for example [{"name":"Ada"}].