EU Sovereignty Score
Self-hosted / open sourceMarketingHeadquarters: IT

Mosaico: sovereignty score and 8 European alternatives

Mosaico is an open-source editor for responsive HTML email templates. Designers and marketers use it to assemble templates that work across email clients and devices. The complete code base is published on GitHub under the GPL-3.0 licence, so organisations can download the editor and run it themselves. The project asks users to host their images themselves.

Mosaico is published by VOXmail, an Italian email marketing service operated by Void Labs Snc, a general partnership with its legal seat in Italy. No foreign parent company is named on the project's pages. Because the GPL licence allows the editor to be run on a European organisation's own infrastructure, template content and images can stay under its control. The project pages do not state a GDPR or data processing commitment, so organisations that use the hosted builder should check its data terms first.

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Sovereignty score
94 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-6100
    Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 12, 2026
Headquarters
IT (EU)Verified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
EUVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
NoVendor-stated
Category
Marketing
Type
Product
Website
mosaico.io ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Mosaico

The European alternatives to Mosaico come from our knowledge base of over 8,000 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

99 European Marketing vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Mosaico

Mosaico is headquartered in IT and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Mosaico scores best on data residency.

Mosaico is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Mosaico together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Mosaico?

It depends on your use case. Strong EU alternatives to Mosaico include AccuRanker, Actito and Acumbamail. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Mosaico?

Our list of EU alternatives to Mosaico is mostly commercial options. Browse the category on the map for open-source choices.

Is Mosaico GDPR-compliant and where is the data hosted?

Mosaico is headquartered in IT (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Mosaico an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 12, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in Marketing

Marketing: Marketing automation, email campaigns, newsletters. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

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8 European alternatives to Mosaico — GDPR-compliant & EU-hosted · EU Sovereignty Score