EU Sovereignty Score
Self-hosted / open sourceDatabase & Data ManagementHeadquarters: DE

HeidiSQL: sovereignty score and 8 European alternatives

HeidiSQL is a graphical database administration tool. It connects to MariaDB, MySQL, Microsoft SQL Server, PostgreSQL, SQLite, Interbase and Firebird, lets you edit data and table structures, and runs SQL queries. It is installed as a desktop application; according to the project site it is available for Windows, Linux and macOS. The first version dates from 2002, and version 12.21 was released in August 2026.

HeidiSQL is developed by an individual developer in Germany, with no company or foundation behind it; the project site's imprint gives a German address. The source code is open under the GNU General Public License (GPL). Because it is a local program, it runs on your own workstation and connects directly to your database servers; there is no cloud service run by the maintainer that processes your data. The project site asks for donations. For organisations that administer databases, it is an open option alongside commercial management suites.

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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 14, 2026
Headquarters
DE (EU)Verified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
EUVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Category
Database & Data Management
Type
Product
Website
heidisql.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to HeidiSQL

The European alternatives to HeidiSQL come from our knowledge base of over 8,400 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

14 European Database & Data Management 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 HeidiSQL

HeidiSQL is headquartered in DE 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 HeidiSQL scores best on data residency.

HeidiSQL 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 HeidiSQL 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 HeidiSQL?

It depends on your use case. Strong EU alternatives to HeidiSQL include Aiven, DuckDB and Elastic. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to HeidiSQL?

Yes. Open-source EU alternatives to HeidiSQL include DuckDB, Elastic, Firebird SQL, Heurist and Meilisearch. These keep your data fully under your own control and let you self-host if you want to.

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

HeidiSQL is headquartered in DE (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes HeidiSQL 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 14, 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

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in Database & Data Management

Database & Data Management: Database systems, data warehousing, managed database services and data platforms. 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.

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