dataslayer

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Debug and test tag management (Google Tag Manager, DTM, Tealium) and analytics implementations.

Latest reviews

• (2025-06-23) Artyom Barov: dataslayer is back! God Bless thank you for working on this guys
• (2025-06-09) Ariana French: So glad dataslayer is back! Best tool out there for debugging the data layer
• (2025-05-02) Desmars Entreprise: I love this extension, but suddenly it disapear from my dev tool bar, and i can't have it back anymore
• (2024-06-21) Roshan Patel: Data Slayer
• (2024-04-19) Nick Vincent: DONT USE THIS TOOL, it displays false results that didn't happen. Example: I'm on URL A and I click a button. -According to Google Tag Assistant (essentially the word of God), this click happened on URL A (duh, of course it did). -According to Dataslayer? Oh it happened on URL B, the place that the button click took me to. Thats literally impossible, but Dataslayer doesnt care. I didnt realize that the name meant that the data itself would be slayed until it's no longer usable. I've tried to capture my thoughts about how insane and ridiculous that is, but I keep failing to accurately capture it. It's nuts. This tool has major issues parsing events properly and the results is that it outright falsifies what happened and makes you question your sanity, until Google tag assistant confirms its not you, it's Dataslayer.
• (2023-11-30) Joe Marshall: Lets you see events from previous sessions, which is what I needed it for.
• (2023-11-30) Joe Marshall: Lets you see events from previous sessions, which is what I needed it for.
• (2022-05-02) sammy boy: if its got a Slayer background image, it worth it
• (2022-05-02) sammy boy: if its got a Slayer background image, it worth it
• (2022-03-28) Bogdan Nazaruk: The interface is really awkward. It would be nice to rework how the data is presented. Becomes hard to work with. But the backend is amazing. Just looked through the source to see how it gets all DEs. _satellite._container.dataElements Pretty cool. Didn't realize _satellite gave access to all DEs.
• (2022-03-28) Bogdan Nazaruk: The interface is really awkward. It would be nice to rework how the data is presented. Becomes hard to work with. But the backend is amazing. Just looked through the source to see how it gets all DEs. _satellite._container.dataElements Pretty cool. Didn't realize _satellite gave access to all DEs.
• (2021-11-26) Steven Carr: Works great! Easy to use and allows you to see quickly what's happening with your tagging and data.
• (2021-11-26) Steven Carr: Works great! Easy to use and allows you to see quickly what's happening with your tagging and data.
• (2021-10-28) René Arias: Me Encantaba el logo de Slayer como identificador de la extensión. Es una Herramienta Genial y simple!!!
• (2021-09-23) Alex Moore: i spent all day to find this extension. It works!
• (2021-09-23) Alex Moore: i spent all day to find this extension. It works!
• (2021-08-11) Fanny Péraudeau: This is a must have ! I recommend it to my colleagues and clients :)
• (2021-08-11) Fanny Péraudeau: This is a must have ! I recommend it to my colleagues and clients :)
• (2021-06-08) Dan Anderson: This dataLayers analyzer is unreadable and columns are too mashed
• (2021-06-08) Dan Anderson: This dataLayers analyzer is unreadable and columns are too mashed
• (2021-04-07) Margaret Shelman: Really easy to use. Helpful tool for quickly confirming which events are sent with GTM.
• (2021-04-07) Margaret Shelman: Really easy to use. Helpful tool for quickly confirming which events are sent with GTM.
• (2021-03-02) Besir Redzepi: Love it!
• (2021-02-24) Tim Bolle: We just identified an issue where this extension sometimes stops analytics tags from firing for Adobe Launched.
• (2021-02-24) Tim Bolle: We just identified an issue where this extension sometimes stops analytics tags from firing for Adobe Launched.
• (2020-11-29) Brian Katz: Simply Great Wow! I originally rated dataSlayer in 2015 I've found it indispensable all this time
• (2020-11-29) Brian Katz: Simply Great Wow! I originally rated dataSlayer in 2015 I've found it indispensable all this time
• (2020-08-26) Matthias Borchert: Hi this is so useful, thank you! Will it also cover App+Web Analytics soon? A+W is already very important in our daily work. Thanks!
• (2020-08-26) Matthias Borchert: Hi this is so useful, thank you! Will it also cover App+Web Analytics soon? A+W is already very important in our daily work. Thanks!
• (2020-06-25) Ondřej Šubrt: I cannot imagine my work without this great tool... I am using it every day and it really simplify my work. Thank you for that I will promote It everywhere I can.
• (2019-09-13) Worked great for my purpopses
• (2019-08-22) Thomas Culetto: Works well with Tealium
• (2019-08-22) Thomas Culetto: Works well with Tealium
• (2019-08-15) James Buckley: Sometimes using the GTM Preview mode feels a bit overkill for checking if some data layer push events or Google Analytics tags are present, which is where this extension comes in. It's an incredibly useful, no-nonsense tool which I always recommend to others when working with GTM.
• (2019-08-15) James Buckley: Sometimes using the GTM Preview mode feels a bit overkill for checking if some data layer push events or Google Analytics tags are present, which is where this extension comes in. It's an incredibly useful, no-nonsense tool which I always recommend to others when working with GTM.
• (2019-05-15) Daniel Valide: nice and very helpful
• (2019-05-15) Daniel Valide: nice and very helpful
• (2018-10-15) Eu Gen: Please add "- adds advertisement to google search results" to the feature list! Otherwise it stays a secret feature and no one will ever know this nice feature exists.
• (2018-10-15) Eu Gen: Please add "- adds advertisement to google search results" to the feature list! Otherwise it stays a secret feature and no one will ever know this nice feature exists.
• (2018-05-01) Alistair Johnstone: Use this all the time for debugging GA and GTM
• (2018-05-01) Alistair Johnstone: Use this all the time for debugging GA and GTM
• (2017-12-28) Timothy Smith: Perfect for testing any on site Google Analytics events or Google Tag Manager configurations. Easy to work with interface and very accurate.
• (2017-12-28) Timothy Smith: Perfect for testing any on site Google Analytics events or Google Tag Manager configurations. Easy to work with interface and very accurate.
• (2017-11-14) Nick Guebhard: Much more accurate than GTM Preview and Debug mode. Thank you!
• (2017-11-14) Nick Guebhard: Much more accurate than GTM Preview and Debug mode. Thank you!
• (2017-10-20) Aitor Alejandro: Sencilla y práctica. Para poder observar el objeto dataLayer de forma visual sin necesidad de inspeccionarlo a través de la consola.
• (2017-03-17) Paul Cikatricis: It's wonderful but recently it has stopped working on my local dev site. It's showing the GTM instance but not the GA. The same code works and shows just fine on production site. Not sure what this might be as it worked perfectly before and I don't recall changing anything. Other GA debugging tool called 'GA Debugger' still works fine. Otherwise a really helpful tool.
• (2017-03-17) Paul Cikatricis: It's wonderful but recently it has stopped working on my local dev site. It's showing the GTM instance but not the GA. The same code works and shows just fine on production site. Not sure what this might be as it worked perfectly before and I don't recall changing anything. Other GA debugging tool called 'GA Debugger' still works fine. Otherwise a really helpful tool.
• (2016-12-08) Ajinkya Mhatre: simply superb!
• (2016-12-08) Ajinkya Mhatre: simply superb!