Is my table data uploaded to a server?
No. The tool parses, transforms, previews, and exports data locally in your browser without uploading your input.
Data & Tables
Table Diff Checker
Compare two tables online. Find added, removed, and changed rows locally in your browser without uploading data.
Tool
Table Diff Checker
Compare two tables online. Find added, removed, and changed rows locally in your browser without uploading data.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this Table Diff Checker to compare two versions of a table side by side. The diff matches rows by position or by a selected key column, then highlight added rows, removed rows, changed values, and unchanged records. It is designed for careful review of small data changes before importing, publishing, or sharing a revised table.
Examples
- Table A id,name,status 1,Ada,active 2,Ben,pending 3,Cy,active Table B id,name,status 1,Ada,active 2,Ben,active 4,Dina,active
Frequently Asked Questions
How are rows matched?
Rows can be matched by their position or by a selected key column. Key-based comparison is usually better when row order changed.
Can the diff ignore whitespace or case?
Yes. The checker offers exact comparison plus optional normalized comparison for trimmed text and case-insensitive values.
Does it merge the tables?
No. This tool reports differences. Merging should remain a separate, explicit workflow.
What file sizes are practical in the browser?
Small and medium tables are the best fit. Very large files can use a lot of memory because parsing, previews, and exported results all live inside the browser tab.
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