CSV to Excel Converter
A simple, secure, and entirely client-side tool for converting CSV files or data into Excel (.xlsx) format.
Overview
This utility provides a fast and private way to convert comma-separated values (CSV) into a standard Excel spreadsheet. Because all processing happens locally in your browser, your data is never uploaded to a server, guaranteeing its privacy and security.
Features
- Multiple Input Methods:
- Drag and drop a
.csv file anywhere on the page.
- Click the “Load CSV File” button to select a file.
- Copy CSV data from another application and paste it directly onto the page.
- Instant Conversion: The tool processes the data immediately and triggers a download of the finished
.xlsx file.
- Privacy First: 100% client-side operation. Your data never leaves your computer.
- No Server Uploads: Eliminates the risk and delay associated with uploading files to a server.
Usage
- Open the CSV to Excel Converter.
- Use one of the following methods to provide your data:
- Drag & Drop: Drag a
.csv file from your computer and drop it onto the browser window.
- File Picker: Click the Load CSV File button and choose your file.
- Paste: Copy your CSV data (e.g., from a text editor or another spreadsheet) and paste it directly onto the page (
Ctrl+V or Cmd+V).
- The conversion will happen automatically, and your browser will prompt you to save the resulting
.xlsx file.
Technical Details
- Core Logic: Built with vanilla JavaScript.
- Library: Uses the powerful SheetJS (xlsx.js) library for handling the spreadsheet conversion.
- Environment: Runs entirely in the browser with no server-side dependencies.
Credits
Created by Oskar Austegard (@oaustegard)
For issues, feature requests, or contributions, please open an issue on GitHub.