GA4 Event Code Generator

The GA4 Event Code Generator is a browser-based tool that automatically generates JavaScript code for Google Analytics 4 (GA4) event tracking. In GA4, event-based measurement is the core mechanism for tracking user actions beyond page views — including purchases, cart additions, sign-ups, logins, and searches. Proper event implementation is fundamental to meaningful data analysis.

This tool fully supports 20+ Google-recommended events across two categories: General Events (page_view, login, sign_up, search, share, join_group, virtual currency operations, etc.) and E-commerce Events (purchase, view_cart, add_to_cart, remove_from_cart, add_to_wishlist, begin_checkout, add_shipping_info, add_payment_info, refund, select_promotion, generate_lead, etc.). Simply select an event from the organized dropdown menu to automatically generate the complete gtag() code with all required parameters.

Choose your output format: gtag() function calls or dataLayer.push() syntax. Built-in validation ensures event names and parameter names follow GA4's snake_case format, preventing tracking errors. Custom event mode allows full flexibility in defining your own events. Each parameter includes detailed descriptions, so you can create accurate code even without deep GA4 knowledge. Specify parameter types (string or number) and currency codes (JPY, USD, etc.). The generated code is production-ready and requires no additional formatting. One-click copying streamlines your development workflow. All processing happens entirely in the browser with no data sent to any server.