2 open-source Tag Management vendors
Open-source software for Tag Management that you can self-host, with auditable source code — regardless of the developer's headquarters.
- vendors scored
- 2
- European
- 1
- last checked
- 11 October 2026
Vendors, scored
Score per vendor: 0 = high exposure, 100 = sovereign
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- Sovereignty score 94 out of 100walkerOSGermany · Self-hosted / open sourceOpen-source toolkit for first-party event tracking by elbwalker GmbH of Hamburg; collects, validates and routes events to analytics and ad tools. MIT licence.
- Sovereignty score 79 out of 100Matomo Tag ManagerNew Zealand · Non-EU vendorOpen-source tag manager by Matomo (InnoCraft Ltd), self-hostable or as part of Matomo Cloud.
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