Why are all these on one page instead of separate tools?

Each one is a real, useful spreadsheet-editing feature, but not a distinct enough job to deserve its own page the way, say, a whole pivot-table reshape does — they're closer to the toolbar buttons of a single spreadsheet editor than nine unrelated tools. One page with mode tabs matches how people actually use them: often one right after another on the same file.

Does Remove Duplicates check the whole row or just some columns?

You choose — check every column you want considered part of the "is this a duplicate" comparison; a row is removed only if all of those columns match an earlier row exactly, and the first occurrence is always kept.

What does Clean Data actually change?

Only what you turn on: trimming leading/trailing whitespace from every cell, collapsing repeated internal spaces to one, and removing rows or columns that are completely empty. It never changes values that already look correct.

How does Merge Tables handle files with different columns?

It takes the union of both files' columns. Rows from a file missing a given column get an empty value there — no rows or columns are ever silently dropped.

Does Sort Rows sort numbers correctly, not just alphabetically?

Yes — if every value in the chosen column looks numeric, it sorts numerically (so 9 comes before 10); otherwise it falls back to plain text sorting.

Excel Toolkit Online

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Extract columns, merge tables, remove duplicates, clean data, transpose, split/merge columns, sort, and filter — nine spreadsheet tools in one page.

✓ Never uploaded — processed in your browser

1. Upload your data

Choose a file or drag and drop it here

.csv, .xlsx, or .xls

2. Preview

3. Choose columns to keep

Never uploaded

Every operation runs entirely in your browser — your spreadsheet never touches our servers.

9 tools, one page

Extract, merge, dedupe, clean, transpose, split, sort, and filter — switch modes without re-uploading.

Free, no limit

No account, and no limit on how many times you can use it.

What's in the Excel Toolkit?

Extract Columns — keep only the columns you choose.
Merge Tables — append a second file's rows onto this one.
Remove Duplicates — drop repeated rows, based on the columns you choose.
Clean Data — trim whitespace, collapse repeated spaces, drop empty rows or columns.
Transpose — swap rows and columns.
Split Column — break one column into several by a delimiter.
Merge Columns — combine several columns into one.
Sort Rows — by any column, ascending or descending.
Filter Rows — keep only rows matching a condition.

How to Use the Excel Toolkit

Choose an operation. Pick one of the nine mode tabs above.
Upload your file. A CSV or Excel file — the same upload works for every mode.
Set the options. Each mode shows only the controls it needs.
Apply, then download. Preview the result before saving it as CSV or Excel.

Frequently Asked Questions

What can the Excel Toolkit do?

Nine spreadsheet-editing operations on one page: Extract Columns, Merge Tables, Remove Duplicates, Clean Data, Transpose, Split Column, Merge Columns, Sort Rows, and Filter Rows.

Is my spreadsheet uploaded anywhere?

No. Every operation runs entirely in your browser.

Is the Excel Toolkit free?

Yes, with no account required and no limit on how many times you can use it.

Try the Excel Toolkit now