Open Source Apps with 'Cloud Sync' feature

Open-source browser with Gecko engine, supporting HTML add-ons and providing privacy features like Enhanced Tracking Protection and third-party cookie blocking.

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

Experience a privacy-focused, open-source browser rich with features like vertical tabs, Split View, Zen Glance, and extensive security protocols. Built on Firefox, it's currently in beta, emphasizing privacy and adaptability, with future plans for horizontal tabs.

Fast, secure browser with built-in ad block, privacy controls, and global tracking protections. Optimizes data, speed, and battery life.

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

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.

This project is a custom and independent version of Mozilla Firefox, with the primary goals of privacy, security and user freedom.

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

This repository contains a build file to generate FLOSS release binaries of Microsoft's Visual Studio Code - Open Source ("Code - OSS") project, the open source core of the proprietary Visual Studio Code.

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.

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.

Local-first, privacy-focused notebook supporting Markdown and Org mode, offline use, encrypted backup, extensible with plugins, and more.

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

FreeFileSync is a folder comparison and synchronization software that creates and manages backup copies of all your important files. Instead of copying every file every time, FreeFileSync determines the differences between a source and a target folder and transfers only the...

Anki is a program that makes remembering things easy. Because it is a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying or greatly increase the amount you learn.

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...

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

Waterfox is a free, open source web browser focused on privacy out of the box and customisation to your taste. It has built-in ad blocking, private and anonymised DNS, no telemetry and no data collection. Plus, a variety of quality of life features.

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