csv-diff

Original：🇺🇸 English

Translated

Compare two CSV files and generate a unified diff file showing line-by-line differences.

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Sourcefityannugroho/csv-diff

Added on2026-02-21

NPX Install

npx skill4agent add fityannugroho/csv-diff csv-diff

SKILL.md Content

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CSV Diff

Compare two CSV files to identify changes, additions, or deletions between them and generate a unified diff output similar to

git diff

.

When to use

Use this when you need to:

Compare two CSV files and see what changed between them, especially for large datasets.
Generate a unified diff file for tracking changes in tabular data.

Quick start

Compare two CSV files:

bash

csvdiff old.csv new.csv

This will generate a

result.diff

file showing the differences.

Documentation

Run
```
csvdiff --help
```
to see available options and usage.
Read the documentation for more details.

Output

The tool generates a unified diff output similar to the following:

diff

--- old.csv
+++ new.csv
@@ -2,3 +2,3 @@
 0,Alice,70000
-1,John,50000
+1,John,55000
 2,Jane,60000

The output shows:

Lines prefixed with
```
-
```
were removed or changed
Lines prefixed with
```
+
```
were added or changed
Context lines (no prefix) show unchanged data for reference

Notes

CSV files must have a header row.
Output is saved to a
```
.diff
```
file (default:
```
result.diff
```
).

Requirements

The

csv-diff-py

package must be installed in your environment. You can install it globally via

uv

(or user-preferred python package manager):

bash

uv tool install csv-diff-py

Alternatively, run it directly with

uvx

(or user-preferred python package runner):

bash

uvx --from csv-diff-py csvdiff file1.csv file2.csv

csv-diff

NPX Install

Tags

SKILL.md Content

CSV Diff

When to use

Quick start

Documentation

Output

Notes

Requirements