CSV File Comparison
Show new, removed, and changed records using a key you choose.
Comma, semicolon or tab separated, or upload a CSV or XLSX file. The first row holds the column names.
The newer version. Rows are matched through the key column below.
A column whose value is unique for each row in both files, such as an id or SKU.
Your result
Paste or upload the old and new versions to see what was added, removed or changed.
How to use it
- Paste or upload the old and new versions.
- Pick the key column.
- Review the differences and download them as CSV.
Examples
- A price changedA-1 priced 5, then 6 Changed: 6 ← 5
- A new rowA-5 only in the new version Added
- A removed rowA-3 only in the old version Removed
Tool details and privacy
Compare two versions of a table through a key column and see added, removed and changed rows highlighted, with the old value beside the new one.
You learn what changed between two exports without checking rows one by one.
Options
- Columns are matched by name, so a different column order is not a change.
- Spaces around values are not counted as changes.
Limits
- If a key repeats, only its first row is compared, and a note says so.
- The files are not merged.
Privacy
What you type or open stays in your browser. Nothing is uploaded or saved on the server.
Questions
What is the key column?
A column whose value never repeats, such as a product code.
Does it show which cell changed?
Yes, the cell is highlighted with the old value beside it.
Can I download the differences?
Yes, as a CSV with a status column.
Are the tables uploaded?
No.