Code Editor for GTM
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-15.
Extension Actions
- Minor Policy Violation
- Removed Long Ago
- No Privacy Policy
Editing HTML tags within Google Tag Manager has never been easier. Get a full code editor within the GTM interface.
- Install the extension
- Access your GTM account
- Create a new HTML custom tag
- Start coding!
Features:
- Based on Code Mirror to comply with GTM's latest version (Since 2.0)
- Activate/Deactivate the extension without going through the Chrome Extensions menu (since 1.4)
- Pretty print the javascript embedded in the older container versions (since 1.4)
- Light theme toggle (since 1.3)
- Support for GTM new interface (since 1.3)
- Search and replace (since 1.2)
- Support for Custom javascript macros (since 1.1)
The GTM Code editor uses Code Mirror's embedding functionality, which features are listed on Ace's website (https://codemirror.net/#features).
Please send us any feedback or feature request.
Google Tag Manager is a trademark of Google Inc. Use of this trademark is subject to Google Permissions.
Latest reviews
- Wendy C
- no directions. a how to video with directions on how to access it and view it and use it would be nice
- Yoann Berthome
- Must reload the page in order to works... else it s good
- Tamás Geiger
- Must have!
- Melissa Silva
- No funciona ni siquiera me aparece en el menú del ordenador, tampoco me aparece la opción de eliminar el programa...malisimooo, para que colocan algo que no funciona perdida de tiempo ._.
- Moshe Saraf
- Makes working with GTM easier. Like it a lot.
- Fanny Le Béguec
- Un indispensable pour une utilisation un minimum avancée de l'outil GTM avec en bonus le plein écran. Merci !
- Antonin Delfino
- L'éditeur de code intégré au TMS est un gros oubli de GTM - du coup add-on très pratique pour tout faire depuis l'interface avec en prime une vue plein écran. Un must have en attendant que Google corrige ça !
- Anonymous
- This is such a great tool, no more copy paste issues!