Free File Converter Tools for CSV, Excel, JSON & XML

Convert files between CSV, Excel, JSON and XML, or split large files into smaller ones — all in your browser, nothing is uploaded.

CSV to Excel

File Converter Tools

Turn CSV files into XLSX workbooks in your browser. Nothing is uploaded.

Excel to CSV

File Converter Tools

Convert XLSX or XLS files into CSV without sending your data to a server.

CSV to JSON

File Converter Tools

Convert CSV into a JSON array of objects, or keep the header row as your key row.

JSON to CSV

File Converter Tools

Flatten nested JSON arrays into a CSV table in the browser.

CSV to XML

File Converter Tools

Convert CSV files into XML records locally with a configurable root and row element.

XML to CSV

File Converter Tools

Flatten repeating XML elements into CSV rows in your browser.

JSON to XML

File Converter Tools

Convert JSON into well-formed XML with customizable root and item names.

XML to JSON

File Converter Tools

Parse XML feeds and documents into JSON on your device.

JSON to Excel

File Converter Tools

Convert JSON arrays into XLSX workbooks locally with automatic sheet naming.

Excel to JSON

File Converter Tools

Read Excel sheets into JSON without a backend, with nested-row support.

XML to Excel

File Converter Tools

Flatten XML feeds and exports into XLSX workbooks in your browser.

Excel to XML

File Converter Tools

Export Excel sheet rows into a structured XML document locally.

Split CSV

File Converter Tools

Split a CSV into multiple smaller CSV files by row count and download them as a ZIP.

Split Excel

File Converter Tools

Split large Excel files by row count or into one file per sheet, downloaded as a ZIP.

How to Convert a File

1. Upload or paste

Drop your file into the converter or paste the text you want to convert.

2. Convert

Click the convert button. Your data is processed locally in the browser.

3. Download

Preview the result and download the converted file. Nothing is uploaded.

CSV to Excel

Turn CSV files into XLSX workbooks in your browser, keeping every column and row intact.

Excel to CSV

Convert XLSX or XLS files into CSV quickly and safely without sending your data to a server.

JSON to XML

Convert JSON documents into well-formed XML with customizable root and item element names.

Split Files

Split large CSV or Excel files by row count, or export one Excel file per sheet, downloaded as a ZIP.

Why Use RGBKit File Convertor Tools

Local processing

Conversion happens in your browser. Your files are not uploaded to our servers.

Cleaner exports

Generate CSV tables, XLSX workbooks and structured XML with predictable output that is easy to share.

Works across formats

Handle common workflows: CSV to Excel, Excel to CSV, JSON to CSV, JSON to XML, XML to JSON and more.

Split large files

Split CSV by rows or split Excel by rows or sheets, then download results as a ZIP.

No installs

Use the tools from any modern browser on desktop or mobile.

Free to use

Convert files without creating an account.

FAQ: Frequently Asked Questions

The conversion tools are designed to run locally in your browser so your data stays on your device.

No. Open the tool you need and convert files instantly without registration.

CSV, Excel (XLSX/XLS), JSON and XML are supported depending on the tool you choose.

Yes. Most tools show a preview so you can verify results before saving the file.

Limits depend on your browser and device. Large files may take longer to process, especially on mobile devices.

Yes. Use Split CSV or Split Excel to split by rows or sheets and download results as a ZIP.