Split Excel or CSV by Column – Free Online Tool
Need to split an Excel or CSV file into multiple sheets or files automatically? This free browser-based tool lets you upload your spreadsheet, choose a column, and instantly separate your data, all without installing anything. It’s 100% private and secure because everything runs directly in your browser, your data never leaves your computer.
Whether you’re managing client lists, sales data, or project reports, this Excel splitter saves you hours of manual copy-paste work. Choose to download each group as a separate .xlsx file or combine them into one workbook with multiple sheets. It’s the easiest way to split Excel by column online.
Split Excel / CSV by Column
100% browser-based — your file never leaves your computer.
Tip: Very large files may be slow in the browser. For best results, keep under ~50 MB.
Why use this Excel/CSV Splitter?
- Fast and Simple: Upload your file, pick a column, and download — no coding or macros required.
- Works with Excel and CSV: Compatible with .xlsx and .csv formats for maximum flexibility.
- 100% Private: All processing happens locally in your browser, so your data stays safe.
- Flexible Output: Choose between multiple files or one workbook with several sheets.
Who is this tool for?
This free Excel splitter is perfect for business owners, marketers, analysts, and teams who regularly work with large spreadsheets. If you manage data exports from CRMs, sales systems, or marketing reports, this tool helps you organize and share them faster.
About LaunchWebflow
This tool was built by LaunchWebflow — a web design and automation agency helping small businesses build modern, high-converting websites and smart digital workflows. If you’re ready to automate your processes or want a professional website that works as hard as you do, get in touch for a free consultation.
Related searches:
split Excel file by column online, split CSV into multiple sheets, Excel automation tool, CSV splitter, separate Excel sheets by category