Google Tag Manager is a tag management system that includes the same functionality as global site tags, and lets you configure and instantly deploy tags on your website or mobile app from an easy to use web-based user interface. In addition, Tag Manager features support for third-party tags, organization features, version control, and enterprise collaboration and security features. Tag Manager helps to reduce errors and allows you to to deploy tags on your site quickly.
Deploy for web pages
Deploy for mobile apps
Use Google Tag Manager to manage analytics and advertising tools in your apps without having to rebuild and resubmit the applications' binaries to app marketplaces.
Server-Side Tagging allows you to move tag code off of your website or app and into the Cloud. Server-Side Tagging can help you improve the performance and security of your website or mobile app.
Create custom templates
Build your own tag and variable templates in Tag Manager. Submit templates to the Community Template Gallery and make them available worldwide.
Automate configuration with the REST API
The Google Tag Manager API provides access to Tag Manager configuration data for an authorized user. Use the API to manage accounts, containers and container versions, tags, rules, triggers, variables, and user permissions.
For more information about Tag Manager features and benefits, visit the following resources: