European alternatives to Google Tag Manager: a practical comparison

Before comparing tools, decide what you actually need from a tag manager.

• EU data residency. The container script and any server-side endpoints should be hosted in the EU or EEA, ideally by an EU-incorporated vendor.
• Tag library. Pre-built templates for the platforms you actually use. If you only need Google Analytics, Meta Pixel and a couple of custom scripts, a smaller library is fine.
• Consent integration. Tags should only fire when the visitor has consented to the relevant category. Most EU tag managers integrate with their own consent module or with the IAB TCF.
• Server-side support. Server-side tagging lets you proxy requests through your own domain, reducing third-party calls and improving control over what data leaves the browser.
• Migration path. You should be able to recreate your existing GTM tags without rewriting them from scratch.

Here is how the three options compare on the criteria that matter most:

Piwik PRO is a Polish company headquartered in Wrocław. Tag Manager is one of four modules in their suite, alongside Analytics, Data Activation and a built-in Consent Manager. Buying the suite means tag management, analytics and consent come from the same EU vendor with a single contract and a single data processor.

On their pricing page, the Business plan starts at €35 per month and includes up to 2 million monthly actions across up to 20 domains, with 25 months of data retention and EU-operated cloud hosting in Sweden. The Enterprise plan starts at €366 per month (billed annually) and adds higher action limits, more flexible data retention, private cloud or HIPAA-compliant hosting, and dedicated support. A 30-day free trial is available without a credit card.

The tag library includes templates for the major analytics, advertising and marketing platforms, plus custom HTML and JavaScript tags for anything not covered. Server-side tagging is available, and the Consent Manager module can gate any tag on the visitor's consent status.

Best for: marketing teams that want analytics, tag management and consent under one EU-hosted suite, with a clear migration path away from the full Google stack.

Matomo Tag Manager is bundled into Matomo Analytics. The software is open source under the GPLv3 licence, which means you can self-host the entire stack on your own infrastructure at no licence cost. Matomo Cloud, the managed hosting option run by Innocraft, offers EU data residency.

Innocraft, the company behind Matomo, is based in New Zealand. New Zealand has an EU adequacy decision, which means cross-border transfers are treated as compliant without needing SCCs. For organisations that prefer a fully European setup, the self-hosted option avoids the question entirely: the data never leaves your servers.

The tag library is smaller than Piwik PRO's or GTM's, but it covers the common cases: Matomo events and goals, custom HTML, custom image pixels, and a handful of third-party platforms. Server-side tagging is available when you self-host, but is not offered as a turn-key product the way Google's server-side container is.

Best for: teams that want a free, open-source tag manager and are already running (or willing to run) Matomo Analytics. Self-hosting gives you full data ownership.

Commanders Act is a French company. Their PlatformX product covers tag management, server-side tracking, consent and a real-time customer data platform. According to their website they have over 500 enterprise customers, including Axa, Carrefour, Credit Agricole, OVH, La Redoute, Schneider Electric and Decathlon. They list "Data Centers in European Union" in their footer and carry the French Tech label.

The product is positioned at the enterprise end of the market. Pricing is not published on their website; you talk to sales and get a custom quote. The platform includes 1,200+ connectors to advertising, analytics and CRM systems, and is built around server-side first-party tracking rather than the browser-first model that GTM uses.

Best for: larger organisations that already run an enterprise tag management contract and want to move it to a European vendor with EU data residency and dedicated implementation support.

Migrating away from GTM is straightforward in principle but requires care, because broken tracking on production tends to be noticed quickly by the marketing team.

Step 1: Audit your existing container. Open your GTM workspace and list every tag, trigger and variable. Note which tags are still firing on real traffic (most containers accumulate dead tags over the years) and which are tied to consent. This list becomes the spec for your migration.

Step 2: Set up the new tag manager in parallel. Create an account with your chosen tool and add a second container to your site. At this point both GTM and the new tag manager are running side by side. Recreate your active tags one by one and verify each one in the new tool's debugger.

Step 3: Switch the traffic. Once you have verified that the new container fires the same tags with the same parameters, pause the corresponding tags inside GTM. Leave the GTM container script in place for a week or two as a safety net, with everything paused, so you can roll back quickly if something breaks.

Step 4: Remove GTM. Run a StackPatrol scan on your site and confirm that googletagmanager.com no longer appears in the vendor list. Remove the GTM container script from your templates or layout, and delete the workspace once you are confident you do not need to roll back.

Removing GTM is a useful step, but the third-party scripts that were loaded through it often have their own direct integrations elsewhere in the site. A scan after the switch usually surfaces a few more things to address: a forgotten Meta Pixel hardcoded in the footer, a HubSpot chat widget loaded directly from a layout file, or a Google Ads remarketing tag added by an old campaign.

Our guide to US data processors covers the vendors that most often go unnoticed after a tag manager migration.