Open Source Web Apps

Open-source password manager with AES-256 encryption and device sync. Store and access encrypted logins across platforms like iOS and Android.

Secure Swiss-based email with end-to-end encryption and zero third-party access. Available across devices, offering a free version to promote privacy.

Discover and install FOSS Android apps with ease. Privacy-focused, ad-free, and no registration required, F-Droid offers a lightweight alternative.

On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.

Open source note-taking app with Markdown support, to-do integration, and synchronization with cloud services like Dropbox and OneDrive.

Open-source suite for editing documents, spreadsheets, presentations, forms, and PDF files with co-editing modes, plugin support, AI assistant, and integration across 40+ platforms.

A secure collaboration app with end-to-end encryption and interoperability across web, desktop, and mobile. Includes chat, voice, and video calls.

Federated and open-source social network with no ads, 500-character limit, custom emojis, and content warnings, emphasizing privacy and personal interaction.

Free content, multilingual online encyclopedia written and maintained by a community of volunteers through a model of open collaboration, using a wiki-based editing system.

Privacy-first AI assistant with zero-access encryption, no logging or profiling, open-source code, and user-controlled conversations, subject to GDPR regulations.

Privacy-focused diagramming software supporting real-time collaboration, offline mode, and cloud storage without ads or registration.

Media center supporting movies, series, YouTube, and smartTV casting via DLNA/Chromecast. Offers HD, subtitles, add-ons, with no registration needed. Notice of new episodes.

Free, open-source, local-first task manager and time tracker for desktop, web, Android and iOS, with Pomodoro focus and optional self-hosted sync.

Open-source software for creating websites and blogs with an emphasis on accessibility, ease of use, performance, and security.

Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline. Created by Proton, the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass.

DeepSeek is a state-of-the-art AI assistant designed to provide intelligent, conversational support across diverse tasks. It leverages advanced natural language processing and machine learning to answer questions, generate creative content, solve complex problems, and offer...

Browse, search and edit worldwide map data for roads, paths, places, buildings and natural features, then reuse it under an open data licence.

Godot Engine is a feature-packed, cross-platform game engine to create 2D and 3D games from a unified interface. It provides a comprehensive set of common tools, so that users can focus on making games without having to reinvent the wheel.

Generates, stores, and encrypts two-factor authentication tokens, enables secure backup, offers offline access, multi-device sync, and flexible import/export options.

PeerTube is a free, decentralized and federated video platform developed as an alternative to other platforms that centralize our data and attention, such as YouTube, Dailymotion or Vimeo. But one organization hosting PeerTube alone may not have enough money to pay for bandwidth...

Open-source, end-to-end encrypted backup and sharing for photos and videos, with multi-platform sync, original quality, privacy controls, and collaborative albums.

Tuta is an all-in-one email, calendar and contacts app which protects your data with full end-to-end encryption and it requires zero personal information. Tuta is built with open source software so you can inspect every piece of code running on your devices so you can be sure...

Offers on-premise or hosted Git repository management, including issue tracking, wikis, code reviews, and continuous integration and deployment.

Penpot is the open-source design platform for teams that design, build, and scale digital products.

Fully open-source, end-to-end encrypted notes with device-based security, secure sync, offline access, powerful editor, vault, backups, and exports.