EU Sovereignty Score
Self-hosted / open sourceGIS & GeospatialHeadquarters: FR

iTowns: sovereignty score and 8 European alternatives

iTowns is an open-source JavaScript library for displaying 3D geospatial data in web applications. Developers use it to add mapping and 3D visualisation features to web applications, with live browser examples and a starter project that show how this is done. iTowns is a library that the developer includes in their own web application; it is not a hosted service.

It is developed by IGN, the French national institute for geographic and forest information based in Saint-Mandé, together with CIRIL Group. The library is dual-licensed under CeCILL-B and MIT. Because the code is open and runs in the browser of the end user, an organisation controls the application it builds, but the map services it connects to determine where map data is processed. For organisations looking to replace proprietary 3D mapping SDKs, iTowns is an open alternative of European origin.

See the 8 European alternatives ↓Assess your stack with iTowns pre-selected
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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
FR (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
GIS & Geospatial
Type
Product
Website
itowns-project.org ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to iTowns

The European alternatives to iTowns 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

57 European GIS & Geospatial 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 iTowns

iTowns is headquartered in FR 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 iTowns scores best on data residency.

iTowns 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 iTowns 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 iTowns?

It depends on your use case. Strong EU alternatives to iTowns include 52°North, Airbus Defence & Space and Camptocamp. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to iTowns?

Yes. Open-source EU alternatives to iTowns include 52°North and Camptocamp. These keep your data fully under your own control and let you self-host if you want to.

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

iTowns is headquartered in FR (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes iTowns 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 GIS & Geospatial

GIS & Geospatial: Geographic information systems, map visualisation and spatial data analysis. 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 iTowns — GDPR-compliant & EU-hosted · EU Sovereignty Score