nordlocker.com
File vault and cloud storage with end-to-end encryption and a zero-knowledge design for syncing private files across supported devices.
Directory
Search results
Published directory entries matching your search.
dino.im
Dino is an open-source chat client for the desktop built on the XMPP protocol. It offers a clean interface with encryption; end-to-end encryption via OMEMO or OpenPGP can be enabled, and read and typing notifications can be disabled. Dino is developed on GitHub by an open community and is available from repositories of many Linux distributions.
proton.me
Proton Docs is a secure online document collaboration tool offered by Proton. It supports real-time co-authoring, safe document sharing, cross-device access, and end-to-end encryption. The tool also includes features for tracking changes and suggestions, gathering feedback and comments, and user-controlled sharing.
proton.me
Proton Mail is a secure email service operated by Proton, based in Switzerland and protected by Swiss privacy law. It is the world's largest secure email service, with over 100 million users, and offers end-to-end and zero-access encryption for all messages. The service is ad-free, available on web, iOS, Android, and desktop platforms, supports importing existing messages and contacts, and offers both personal and business plan options.
signal.org
Signal is a messaging application focused on privacy. Its source page describes end-to-end encryption via the open source Signal Protocol, and support for text, voice messages, photos, videos, GIFs, files, voice and video calls and group chats. It is described as free, with no ads or trackers, and as an independent nonprofit.
actualbudget.org
Actual Budget is a local-first personal finance app built around envelope budgeting. It supports syncing across devices with optional end-to-end encryption, and offers bank sync through goCardless in the EU/UK and SimpleFIN in the US/Canada.
mail.aionda.com
Aionda Mail is a German groupware service offering email, calendar and contacts, end-to-end encrypted with post-quantum cryptography. Accounts can create unlimited addresses, and an AI assistant is enabled by default on the provider's own servers and can be turned off. Zero-knowledge encryption is described. A Plus plan lists an encrypted mailbox, unlimited addresses and custom domains.
atuin.sh
A shell history tool that syncs, searches and backs up shell history with end-to-end encryption, available for macOS, Linux and Windows and for shells including bash, zsh and fish. It includes Atuin AI, which is free during testing and can suggest and run commands.
berty.tech
Berty is a nonprofit project building a privacy-first peer-to-peer messenger on the Wesh network. Conversations use end-to-end encryption in a distributed network, with messaging over Bluetooth Low Energy that needs no network connection. Data is stored only on the device, and the software is described as forthcoming and open source.
contextvm.org
ContextVM is a transport layer for MCP servers over the Nostr network. It uses public keys and relays instead of domains, OAuth or port forwarding, with end-to-end encryption and optional Lightning payments, and works with any MCP server through an official SDK or a gateway/proxy.
codeberg.org
Conversations is an open source XMPP/Jabber client for Android. It offers end-to-end encryption with OMEMO or OpenPGP, file and image sharing, encrypted audio and video calls, private group chats and public conferences, multiple accounts and location sharing, with a Material Design 3 interface. Some features require server support.
github.com
croc is a command-line tool for transferring files and folders between two computers. It uses peer-to-peer transfer with relay fallback and end-to-end encryption using PAKE. It supports cross-platform transfers on Windows, Linux, Mac and browser, multiple file transfers, and resuming interrupted transfers, without a local server or port-forwarding.
github.com
Crosspaste Desktop is an open source cross-device clipboard synchronization tool hosted on GitHub by the CrossPaste team. It supports macOS, Windows and Linux, operates exclusively over local area networks with end-to-end encryption and no cloud dependency, and includes built-in optical character recognition, command line interface and MCP server functionality.
file.kiwi
file.kiwi is a web-based file transfer and sharing service. It allows uploading files without a size limit and creating a shareable link without signup, using end-to-end 128-bit AES-GCM encryption, with files auto-expiring and an option for shared web folders.
filen.io
Filen is a cloud storage service built around zero-knowledge end-to-end encryption, with client-side encrypted storage for individuals. It offers features for syncing, sharing and organizing data, including a network drive and Smart Sync. Paid plans range from 200 GiB to 10 TiB of storage; a free tier starts with 10 GiB of space.
gajim.org
Gajim is a free, fully featured chat app for XMPP, developed by volunteers as open source software using Python and GTK. It supports end-to-end encryption and syncs chats across devices with a provider of the user's choice. It is interoperable with other chat apps and runs on Windows, macOS, and Linux.
instant.io
Instant.io is a web tool for streaming file transfer over WebTorrent. Users can drag and drop files to begin seeding, or choose a file, and can also start downloading. The page notes a related project, Wormhole, from the same creator, which adds end-to-end encryption and links that keep working after the browser is closed.
joplinapp.org
Joplin is a free, open-source note-taking and to-do application that organises notes into notebooks. Notes are stored in Markdown and are searchable, taggable and editable, with offline-first access, end-to-end encryption, plugins and themes, and sync via services including Nextcloud, Dropbox, OneDrive and Joplin Cloud. Apps exist for Windows, Linux, macOS, Android and iOS, plus a Firefox and Chrome web clipper.
keybase.io
Keybase is secure messaging and file-sharing software using public key cryptography for end-to-end encryption. It stores group photos, videos and documents, supports exploding messages with timers, and connects to public identities from services such as Twitter and Reddit. It is available for macOS, Windows, Linux, iPhone and Android.
github.com
This is the official GitHub repository for Kopia, a cross-platform backup tool for Windows, macOS and Linux. The tool provides fast incremental backups, client-side end-to-end encryption, compression and data deduplication, and includes both command-line interface and graphical user interface options.
localsend.org
LocalSend is a free, open-source, cross-platform tool for sharing files to nearby devices over a local network without the cloud. It is available for Windows, macOS, Linux, Android and iOS, requires no account or login, and uses end-to-end encryption. Transfers work offline at WiFi speeds.
matrix.org
A directory of clients for the Matrix open protocol for secure decentralised communications. It lists featured and other clients and notes that clients are needed to chat using Matrix, with a selection of the most mature ones. Entries cover platforms and features such as end-to-end encryption, spaces, threads and voice and video calls.
notesnook.com
Notesnook is an open-source note-taking app with end-to-end encryption, available as desktop, web and mobile clients. It supports notebooks, tags, favorites, pins, linked notes, an app lock and publishing a single note as a web page behind an optional password. It offers sync across devices and imports from Evernote, Google Keep, Obsidian, Joplin and other apps and formats.
peergos.org
Open-source storage, sharing, and sync with end-to-end encryption, protected metadata, hosted accounts, and self-hosting support.