Pricing

Pay per event

CSV Diff Tool

Compare two CSV datasets and find added, removed, and modified rows. Supports key-column matching, configurable delimiters, case-insensitive comparison, and whitespace trimming. Exports a structured change report with before/after values.

Pricing

Pay per event

Rating

0.0

(0)

Developer

Stas Persiianenko

Actor stats

Bookmarked

Total users

Monthly active users

2 days ago

Last modified

Categories

Developer tools

You can access the CSV Diff Tool programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in Integrations settings in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1import { ApifyClient } from 'apify-client';
2
3// Initialize the ApifyClient with your Apify API token
4// Replace the '<YOUR_API_TOKEN>' with your token
5const client = new ApifyClient({
6    token: '<YOUR_API_TOKEN>',
7});
8
9// Prepare Actor input
10const input = {
11    "csvA": `id,name,price,stock
121,Widget Alpha,9.99,100
132,Widget Beta,14.99,50
143,Widget Gamma,4.99,200
154,Widget Delta,24.99,25`,
16    "csvB": `id,name,price,stock
171,Widget Alpha,9.99,100
182,Widget Beta,19.99,45
193,Widget Gamma,4.99,200
205,Widget Epsilon,34.99,10`,
21    "keyColumns": [
22        "id"
23    ],
24    "delimiter": ",",
25    "hasHeader": true,
26    "caseSensitive": true,
27    "trimWhitespace": true,
28    "outputFormat": "all-changes"
29};
30
31// Run the Actor and wait for it to finish
32const run = await client.actor("automation-lab/csv-diff-tool").call(input);
33
34// Fetch and print Actor results from the run's dataset (if any)
35console.log('Results from dataset');
36console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
37const { items } = await client.dataset(run.defaultDatasetId).listItems();
38items.forEach((item) => {
39    console.dir(item);
40});
41
42// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

CSV Diff Tool — Compare Two CSV Files & Find Changes API in JavaScript

The Apify API client for JavaScript is the official library that allows you to use CSV Diff Tool API in JavaScript or TypeScript, providing convenience functions and automatic retries on errors.

Install the apify-client

$npm install apify-client

Other API clients include:

CSV Diff Tool API in Python

CSV Diff Tool API through CLI

CSV Diff Tool OpenAPI definition

CSV Diff Tool API

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