Free Excel & CSV Data Cleaner (Deduplicate & Format)
Struggling with a messy spreadsheet? Whether you have a marketing email list full of duplicates, or a database export with broken formatting, cleaning it manually in Excel can take hours.
Pixedra’s Data Cleaner automates this process instantly. Upload your CSV or Excel (XLSX) file to remove duplicate rows, trim extra spaces, and fix capitalization errors in seconds. Best of all, this tool runs 100% Client-Side—your sensitive customer data is processed right in your browser and is never uploaded to our servers.
How to Remove Duplicates & Clean Excel Files
- Upload File: Drag and drop your .CSV or .XLSX file. You can also paste text directly from your clipboard.
- Review Data: Our tool displays your data in a clean, readable table.
- Choose Actions:
- Remove Duplicates: Delete exact matching rows instantly.
- Trim Whitespace: Remove accidental spaces at the start/end of text.
- Remove Empty Rows: Clear out blank lines to tidy up the sheet.
- Download: Click "Export CSV" or "Export Excel" to get your sanitized file.
Why Use Pixedra vs. Excel Formulas?
Faster than Formulas
Doing Data > Remove Duplicates in Excel is fine for simple lists. But if you need to Trim Spaces, Fix Capitalization (e.g., changing "john DOE" to "John Doe"), and Filter Empty Rows all at once, Pixedra does the work of 5 complex Excel formulas in one click.
Enterprise-Grade Security
Most online data tools require you to upload your file to a cloud server. This is a security risk for business data. Pixedra is an Offline-First tool. We literally cannot see your data because it never leaves your computer.
Frequently Asked Questions
Developer Tip
Need to convert this data for an app? Use our JSON to CSV Converter.
Need to check what changed between two versions of a file? Use our Diff Checker.