Clean, Trim & Deduplicate Excel Spreadsheet Data

Clean messy Excel spreadsheets: strip leading/trailing whitespace, remove empty rows and columns, deduplicate records, and normalize casing.

File & Configuration
Processed Document
Ready to Process
Select or drop your file above, then click the button to process directly in your browser.

How to Use the Excel Data Cleaner & Deduplicator

  1. Upload your Excel workbook.
  2. Choose cleaning rules: Trim Whitespace, Remove Empty Rows, Remove Duplicates.
  3. Download the cleaned, normalized spreadsheet.

Key Features & Capabilities

  • Trims hidden spaces, tabs, and non-breaking spaces (NBSP).
  • Strips 100% empty rows and columns automatically.
  • Dedupes duplicate rows based on all or primary key columns.

Technical Architecture & Privacy

Excel Data Cleaner & Deduplicator is engineered with a focus on performance, mathematical accuracy, and maximum user privacy. Operating entirely in-browser on the client side, all processing takes place locally within your browser's JavaScript engine. None of your financial numbers, text entries, or private inputs are ever transmitted to or stored on remote servers.

Frequently Asked Questions

Does this fix formatting inconsistencies? ▾

Yes, it normalizes spaces and formatting across all cells uniformly.

🔗 Embed this Tool on your Website

Embed this responsive tool into your website, blog, or documentation. It runs in a 100% isolated sandbox with automatic height resizing.