# Popular sources

Coupler.io is a data integration platform & AI analytics solution that connects your business apps to AI tools, spreadsheets, BI tools, and databases — no code required. Pull data from 400+ sources, transform it on the fly, and keep your reports up to date on autopilot.

In-depth guides for the most popular data sources — including available metrics, common issues, best practices, and FAQs.

* [**Facebook Ads**](https://docs.coupler.io/sources/category/ppc/facebook-ads) — Automate campaign performance reporting across Facebook, Instagram, Messenger, and Audience Network.
* [**Google Sheets**](https://docs.coupler.io/sources/category/files-and-tables/google-sheets) — Pull data from spreadsheets and export to any supported destination on a schedule.
* [**Google Analytics (GA4)**](https://docs.coupler.io/sources/category/ppc/google-analytics) — Export events, conversions, and user behavior data to Google Sheets, BigQuery, or databases.
* [**QuickBooks**](https://docs.coupler.io/sources/category/finance-and-accounting/quickbooks) — Export accounting data (invoices, expenses, financial reports) to spreadsheets, BI tools, or databases.
* [**Google Ads**](https://docs.coupler.io/sources/category/ppc/google-ads) — Automate spend, clicks, impressions, and conversion reporting from campaigns.
* [**Facebook Page Insights**](https://docs.coupler.io/sources/category/social-media/facebook-page-insights) — Export post performance, reach, and engagement metrics to Google Sheets, BigQuery, or Looker Studio.
* [**JSON**](https://docs.coupler.io/sources/category/files-and-tables/json) — Pull data from any REST API with JSON responses into Google Sheets or BigQuery.
* [**Xero**](https://docs.coupler.io/sources/category/finance-and-accounting/xero) — Export invoices, contacts, journals, and financial reports automatically.
* [**Google Calendar**](https://docs.coupler.io/sources/category/project-management/google-calendar) — Export calendar events and availability to Google Sheets, Excel, or BigQuery.
* [**Shopify**](https://docs.coupler.io/sources/category/ecommerce/shopify) — Connect orders, products, customers, and inventory via GraphQL API.
* [**Airtable**](https://docs.coupler.io/sources/category/files-and-tables/airtable-addon) — Sync Airtable bases to Google Sheets and combine tables for reporting.

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