European alternatives

European alternatives to Firebase

Compare Nhost, Kuzzle, and Appwrite for databases, authentication, APIs, storage, functions, self-hosting, managed services, and migration from Firebase.

By the Federal Europa editorial team Reviewed 2026-08-22

On this page

European options and the jobs they do
What to compare before switching
Ownership, scope and the shortlist
Sources and review

European options and the jobs they do

Nhost AB from Sweden provides a managed and extensible Postgres backend with GraphQL, authentication, storage, and functions. Kuzzle is a French open-source backend and IoT platform. Appwrite is a Swiss open-source backend platform available as cloud software or for self-hosting. They overlap with Firebase, but none mirrors every Google product, SDK, analytics feature, or scaling assumption.

Firebase can include Authentication, Firestore, Realtime Database, Storage, Functions, Hosting, Analytics, Crashlytics, messaging, remote config, and mobile SDKs. Replacing it is an architecture project. Data models, offline behaviour, security rules, indexes, triggers, identity flows, notification delivery, observability, and developer tooling all need separate decisions.

What to compare before switching

Infrastructure choices carry unusually high switching costs. Jurisdiction is only one layer: buyers should also test data location, remote-access exposure, operational control, supply-chain dependencies, model licensing, portability, and what happens if a supplier changes ownership.

Choose Nhost when a Postgres and GraphQL model fits and a Swedish managed operator is attractive. Consider Kuzzle for open-source backends, real-time applications, or connected-device projects with European support. Evaluate Appwrite for a broad open-source developer platform and deployment choice. Prototype the hardest workload and a full export before moving production traffic.

Ownership, scope and the shortlist

This guide uses European in a precise, disclosed way. Some options are based in the EU, some elsewhere in Europe, and some are open-source projects whose jurisdiction depends on the host you choose. None of those labels automatically guarantees privacy, security, good labour practices, or a perfect fit.

Treat this page as a shortlist, not a verdict. Federal Europa does not rank countries or sell placement in this guide. The useful outcome is a more contestable European market in which people and organisations can switch, export their data, and keep more than one credible door open.

European options worth comparing

Sweden

Nhost

A backend platform operated by Nhost AB with Postgres, GraphQL, authentication, storage, and functions. Managed infrastructure still requires checking current regions and subprocessors.

France

Kuzzle

A French open-source backend platform used for web, mobile, real-time, and IoT applications, with software and professional support rather than a Firebase-identical service menu.

Switzerland

Appwrite

An open-source backend platform with databases, authentication, storage, functions, messaging, and cloud or self-hosted deployment choices.

How to choose without buying the flag

Inventory every Firebase product, SDK, trigger, security rule, index, and third-party integration.
Test the most complex data query, offline flow, authentication edge case, and background function.
Confirm managed-service regions, backups, logs, encryption, subprocessors, and support boundaries.
Benchmark migration, egress, observability, scaling, and operational staffing costs.
Design a rollback and dual-write period before changing production data paths.

Check before you rely on it

Federal Europa keeps this friendly, but official details can depend on your country, route, status, timing, airline, seller, or document situation.

The provider's current legal notice, privacy policy, security documentation, and subprocessors.
Whether the exact plan you need is available in your country and where its data is processed.
Whether you can export your data in a useful format and leave without rebuilding everything.

Plain-language FAQ

Questions people usually ask next

What is a European alternative to Firebase?

Nhost is Swedish, Kuzzle is French, and Appwrite is Swiss. Each covers a different subset of backend-as-a-service needs and should be tested against the exact Firebase products in use.

Is an open-source Firebase alternative automatically sovereign?

No. Open source improves inspection and deployment choice, but sovereignty also depends on the operator, hosting, keys, support access, dependencies, and your ability to run or move the service.

Can I migrate Firestore directly to Postgres?

Not without modelling work. A document database and a relational database organise data differently, so schemas, queries, permissions, transactions, and application code usually need redesign.

Related countries

France A whole continent of food, cities, mountains, islands, culture, arguments, and public beauty in one country. Sweden Archipelagos, forests, equality debates, music, design, industry, northern light, and everyday modernity.

Sources and review

Federal Europa keeps the friendly voice, but practical facts still need official or reliable sources.