10+ Best European software tagged "Open Source" in 2026

Nextcloud

Achieve data sovereignty with a self-hosted content collaboration platform. Features file sync, chat, video calls, groupware, and an online office suite.

European Alternative to:

Google Photos

Matomo

France

Web analytics platform that tracks complete visitor data while respecting privacy, giving you full control over your analytics data.

European Alternative to:

Google Analytics

Keila

Germany

Manage email newsletters with an easy, reliable open-source tool. Offers flexible design, powerful analytics, self-hosting options, and EU privacy.

European Alternative to:

Mailchimp

SolidTime

Austria

Manage projects, tasks, clients, and billing with this open-source time tracker. Offers team collaboration, PWA mobile access, and easy data migration.

European Alternative to:

Clockify

Internxt

Spain

Open-source cloud storage with zero-knowledge encryption, post-quantum security, and complete privacy. Access Drive, Mail, VPN, and more with GDPR compliance.

European Alternative to:

Google Drive

Jitsi

France

Conduct secure, free, open-source video conferences on web and mobile. No account required. Integrate into your apps or host on your own servers.

European Alternative to:

Google Meet

OpenPanel

Sweden

Gain powerful web and product analytics with an open-source platform. Understand user behavior, track events, and own your data. GDPR compliant and cookie-less.

European Alternative to:

Google Analytics

Element

United Kingdom

Experience secure, end-to-end encrypted messaging and collaboration. A decentralised platform for sovereign communication, offering self-hosting or managed services.

European Alternative to:

Google Voice

Elastx

Sweden

Explore a Swedish public cloud built on open source, automation, and environmental care. Get a flexible, efficient, and greener hosting solution.

European Alternative to:

Cloudflare

OpenProject

Germany

Achieve project success with versatile open source software for classic, agile, or hybrid management. Features task tracking, Gantt charts, boards, and secure collaboration.

European Alternative to:

Linear

Zitadel

Switzerland

Manage user identities securely with customizable authentication, SSO, MFA, and RBAC. Offers easy APIs, programmable workflows, and multi-tenancy for developers.

European Alternative to:

WorkOS

Swetrix

Ukraine

Gain website insights without cookie banners using this privacy-first, GDPR-compliant analytics. Understand user behavior and improve your site effectively.

European Alternative to:

Google Analytics

Proton Pass

Switzerland

Securely manage passwords, passkeys, and email aliases. Enjoy autofill, 2FA, secure sharing, and dark web monitoring. Open-source and free forever.

European Alternative to:

Bitwarden

LimeSurvey

Germany

Quickly create free, open-source online surveys and polls. Offers advanced features, 80+ languages, and easy design for insightful data collection.

European Alternative to:

Google Forms

Kolab Now

Switzerland

Manage email, calendars, contacts, tasks, and files securely with this Swiss-hosted, open-source groupware. Prioritizes privacy and collaboration.

European Alternative to:

Gmail

Passbolt

Luxembourg

Manage passwords and secrets securely with an open-source platform for teams. Offers end-to-end encryption, granular sharing, and flexible hosting options.

European Alternative to:

Bitwarden