app projects

15 European open-source projects in the app category.

CryptPad

JavaScript AGPL-3.0

CryptPad is an open-source, end-to-end encrypted collaborative office suite built in JavaScript. It offers real-time editing of documents, spreadsheets, presentations, and more with zero-knowledge encryption ensuring that neither the server nor any third party can access the content.

collaboration encryption privacy

Demo Time

TypeScript Apache-2.0

A Visual Studio Code extension to help you script your demos. Demo Time empowers you to script flawless coding demonstrations and present slides seamlessly within Visual Studio Code. Eliminate typos and missteps, ensuring engaging and stress-free presentations.

Freelens

TypeScript MIT

Freelens is a free and open-source graphical IDE for Kubernetes cluster management, forked from OpenLens to preserve a fully community-driven development. It delivers an intuitive cross-platform interface (macOS, Windows, Linux) with a rich extension ecosystem. Actively maintained by a European core team with a vendor-neutral, transparency-first philosophy aligned with cloud-native standards.

kubernetes cloud-native ide

KeePassXC

C++ GPL-3.0

KeePassXC is a free, open-source, cross-platform password manager built as a community fork of KeePassX. It stores credentials in an AES-256 encrypted local database and supports hardware security keys (YubiKey, OnlyKey), browser integration, TOTP, and SSH agent. A privacy-first alternative to cloud-based password managers.

La Suite docs

Python MIT

Docs is an open-source collaborative documentation and wiki platform developed by France's DINUM as part of La Suite numérique, the French government's digital sovereignty workspace. It supports real-time co-editing, version history, comments, export to PDF/ODT/Word, and an AI assistant. Used by 500,000+ public agents.

LemonLDAP-NG

Perl GPL-2.0

LemonLDAP::NG is a mature, open-source Web SSO and access management platform trusted by French government ministries since 2004. It supports CAS, SAML, and OpenID Connect federation, multi-factor authentication via TOTP, WebAuthn, and email MFA, and integrates with LDAP, databases, and NoSQL backends.

LibreOffice

C++ MPL-2.0

LibreOffice is a free, open source and private office suite, used by millions of people around the world and the successor to OpenOffice. It is made by a worldwide community and backed by a non-profit organisation (The Document Foundation).

Mastodon

Ruby AGPL-3.0

Mastodon is a free, open-source, decentralized social network built on the ActivityPub protocol. Self-hostable and federated, it allows anyone to run their own server while communicating across the Fediverse. Developed by Mastodon gGmbH in Berlin, it prioritizes user privacy, data portability, and freedom from algorithmic manipulation.

MidPoint

Java EUPL-1.2

MidPoint is the leading open-source identity governance and administration platform, engineered in Slovakia and recognized by Gartner and KuppingerCole. It automates the full identity lifecycle — provisioning, governance, compliance, and access management — with no license fees, flexible deployment, and EUPL-1.2 licensing.

Odoo CE

Python LGPL-3.0

Odoo Community Edition is the open-source core of Odoo, a comprehensive Belgian-built ERP and business application suite. Licensed under LGPL-3.0, it covers CRM, sales, inventory, accounting, project management, e-commerce, and manufacturing. Self-hostable and extensible via a large ecosystem of community modules.

OpenProject

Ruby GPL-3.0

OpenProject is an open-source project management and team collaboration platform made in Berlin, Germany. It supports classical and agile workflows, Gantt charts, time tracking, Scrum/Kanban boards, wikis, and budgeting. GPL-3.0 licensed and self-hostable, used by public administrations and enterprises across Europe.

Sossoldi

Dart MIT

Sossoldi is a free and open source wealth management / personal finance / Net Worth tracking app, made with Flutter.

SquashTM

Java LGPL-3.0

SquashTM is an open-core test management solution that centralises all testing activities, from requirements to execution results. It lets teams build a structured, reusable test repository, manage campaigns across manual, automated, and exploratory testing, and maintain full traceability between requirements and test coverage. Agnostic by design, it integrates with GitLab, OpenProject (Q1 2027), Jira, Jenkins and other CI/CD tools, supporting Agile, V-model, and hybrid methodologies. On-premise or cloud.

test management software testing test automation

Synapse

Python AGPL-3.0

Synapse is the reference Matrix homeserver maintained by Element, powering federated, end-to-end encrypted real-time communications including messaging, VoIP, and file sharing. It underpins deployments across European governments and healthcare, including Germany's TI-Messenger and France's Tchap national messaging platform.

XWiki

Java LGPL-2.1

XWiki is a second-generation open-source wiki platform built in Java, enabling organizations to build intranets, knowledge bases, digital workplaces, and custom collaborative solutions. It offers structured data, extensions, scripting, and full data sovereignty with self-hosted or cloud deployment.

wiki knowledge-management collaboration