Open Source Software as a Service (SaaS) Apps

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

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.

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

NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids — on all devices and on all networks.

Open-source service offering unlimited anonymous email aliases, encrypted forwarding, spam protection, and anonymous replies to keep your identity private.

Self-hosted platform for secure file sync, sharing, calendar, and contact management with desktop, mobile, web access, and multi-device syncing.

CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.

Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption.

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

Open source kanban platform with workspace members, board visibility controls, Trello import, card labelling, activity logs, and collaboration tools.

Cryptee is a safety and privacy focused, encrypted and cross-platform personal data storage service. You can write personal documents, notes, journals, store photos (including raw photos from DSLR cameras) and all sorts of other files.

Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10 GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts.

Taiga is the easy and intuitive yet powerful agile project management tool for multi-functional teams. Taiga has a best in class Sprint task board, and you can seamlessly migrate to Kanban if needed.

Rybbit is the modern open source and privacy-friendly alternative to Google Analytics. It takes only a couple of minutes to set up and is super intuitive to use.

Proton Wallet is a self-custody wallet, meaning we use end-to-end encryption to ensure that you are the only one with access to your wallet's encryption keys.

Teable is a super fast, real-time, professional, developer friendly, no-code database built on Postgres. It uses a simple, spreadsheet-like interface to create complex enterprise-level database applications.

Enterprise-ready on-premise suite with advanced word processing, spreadsheet, and presentation tools, maximizing interoperability and file compatibility.

A free, open-source music composition tool for beat-making, loops, and arrangements — built with Web Audio, WASM, and modern web tech.

VERT.sh is an online file converter that processes files on your device instead of the cloud. It's blazingly fast, ad-free, and open source.

Self-hosted GPL-licensed analytics with advanced privacy, customizable reports, insights on visitor languages, search keywords, and real-time traffic sources.

Seafile is an open-source file management and collaboration platform that goes beyond sync and share, offering extensible metadata, multi-level tagging, flexible file views, and AI-powered organization for smarter teamwork.

DeepNotes is an open source, end-to-end encrypted visual note-taking app with deep page navigation and live collaboration. Create mind maps, diagrams, kanban boards, among others. Infinite nesting of infinite canvases.

Baserow is the secure, open-source platform for building databases, applications, automations, and AI agents — all without code. Trusted by over 150,000 users, Baserow delivers enterprise-grade security with GDPR, HIPAA, and SOC 2 Type II compliance, plus cloud and self-hosted...

Open source web-based reader with AJAX, offering privacy control through self-hosting. Features include aggregation, keyboard shortcuts, and podcast support.

Weblate is a web based translation tool with tight VCS integration. It features simple and clean user interface, propagation of translations across components, consistency checks and automatic linking to source files.