Can I compare two Excel files online?

Yes. Drop two XLSX files into the left and right panels, and Zolkit extracts worksheet text locally before highlighting added, removed, and changed rows.

Does the Excel diff compare formulas?

Zolkit compares extracted worksheet values and text. If a workbook stores formula results, those visible values are compared; formula-level auditing may require a spreadsheet-specific review tool.

Can I compare CSV files too?

Yes. CSV and TSV files are text-based formats, so they can be loaded directly and compared side by side.

Is Excel file comparison private?

Excel file comparison runs in the browser with JSZip-based XLSX extraction. The spreadsheet content stays on your device during comparison.

Compare Excel Files

Compare two Excel files online. Drop XLSX spreadsheets and review changed cells, rows, labels, and values side by side.

For scanned PDFs or image-only files, copy the OCR text into the comparison panels before comparing.

Ignore whitespace

Original

Changed

Comparison results

Added: 0Removed: 0Changed: 0Unchanged: 0

Add content on both sides to compare.

Excel comparison is useful for finance, operations, analytics, inventory, and reporting workflows where a changed value can alter a decision. Drop the original XLSX file on the left and the revised XLSX file on the right, and Zolkit extracts worksheet text in the browser before showing the differences. The comparison is line based, so it is best for spotting changed labels, row values, exported tables, CSV-like sheets, and tabular reports. Because the spreadsheet is processed locally, it is a practical option for private budgets, sales reports, data exports, and internal reconciliations that should not be uploaded to a server.

Related Comparison Pages

Diff Checker Compare PDF Documents Compare Word Documents JSON Diff Checker

Online Diff Checker for Text, JSON, and Documents

Zolkit's Diff Checker compares two texts, code snippets, JSON payloads, Word files, Excel sheets, PowerPoint decks, and PDF documents in your browser. Use it to spot added, deleted, and changed lines without uploading sensitive contracts, drafts, API responses, or internal documents.

Browser-Only Privacy

Text comparison and supported document extraction run locally in your browser, so confidential drafts and legal files do not need to be uploaded.

Document Input

Drop DOCX, XLSX, PPTX, TXT, CSV, JSON, and PDF files, or paste text directly into the side-by-side panels.

JSON Diff Mode

Normalize JSON before comparing so formatting noise is removed and structural changes are easier to review.

Side-by-Side Results

Added lines are highlighted in green, removed lines in red, and changed rows are aligned for fast review.

Whitespace Control

Ignore whitespace when indentation or line wrapping should not count as a meaningful change.

Free to Use

Compare text and files without an account, installation, or per-document limit from Zolkit.

How to Compare Text or Documents

1
Paste text into both panels, or drop one supported file into each side.
2
Choose Text or JSON mode, then enable Normalize JSON or Ignore whitespace when useful.
3
Review the side-by-side diff where additions are green, removals are red, and changed rows are aligned.