Electrum's focus is speed and simplicity, with low resource usage. It uses remote servers that handle the most complicated parts of the Bitcoin system, and it allows you to recover your wallet from a secret phrase.Do not trust. Verify.Electrum verifies that your transactions are in the Bitcoin blockchain.

Because Bitcoin is not about trust, It is about freedom and independence.Main features are:Safe: Your private keys are encrypted and never leave your computerForgiving: Your funds can be recovered from a secret phraseInstant On: Electrum is fast, because it uses servers that index the Bitcoin blockchainNo lock-In: You can export your private keys and use them in other Bitcoin clientsNo Downtimes: Electrum servers are decentralized and redundant. Your wallet is never downProof Checking: Electrum Wallet verifies all the transactions in your history using SPVCold Storage: Keep your private keys offline, and go online with a watching-only walletMultisig: Split the permission to spend your coins between several walletsAdd-ons: Electrum supports third-party plugins: Multisig services, Hardware wallets, etc

Electrum

An unofficial GTK client for the messaging application Signal. This is a very simple application with many features missing compared to the official applications.Link deviceSend messagesReceive messagesReply to a messageReact to a messageSending and receiving attachmentsEncrypted storageNotifications, optionally in the backgroundMore features are planned, blocked or not-planned. Consult the README for more information about them.Please note that using this application will probably worsen your security compared to using official Signal applications. Use with care when handling sensitive data. Look at the projects README for more information about security.

Flare

An app for Reddit.Browse Reddit from your Linux desktop or smartphone.

Giara

An unofficial client to install Unreal Engine, download and manage purchased assets, projects, plugins and games from the Epic Games StoreFeatures:Downloading purchased assets from unreal marketplaceDownloading official binary Unreal Engine packagesAdding assets to projects and creating new projects from assetsListing and launching Unreal projectsListing and launching Unreal Engine installations

Epic Asset Manager

Whalebird is a Mastodon, Pleroma, and Misskey client for the desktopFeaturesAn interface like slackNotify to desktopStreamingMany keyboard shortcutsManage multiple accounts

Whalebird

Whalebird is a Mastodon, Pleroma, and Misskey client for the desktop

RSS Guard is a news feed reader, written in C++ and Qt.It supports many feed formats, such as:ATOMJSON (1.x)RSS (0.x, 1.x, 2.x)It also supports many web-based feed services, including:FeedlyGmailGoogle Reader API (Bazqux, FreshRSS, Inoreader, Miniflux, Reedah, The Old Reader, etc.)Next Cloud NewsTiny Tiny RSS

RSS Guard

Mumble is an open source, low-latency, high quality voice chat software.

Mumble

BlueBubbles is an open-source and cross-platform ecosystem of apps aimed to bring iMessage to Android, Windows, Linux, and the Web! With BlueBubbles, you'll be able to send messages, media, and much more to your friends and family.

BlueBubbles

Tokodon is a Mastodon client. It allows you to interact with the Fediverse community.

Tokodon

SDRangel is an Open Source SDR and signal analyzer frontend to various hardware. It is able to receive and transmit various analog and digital modes, TX/RX from multiple SDRs simultaneously, do noise figure measurement, satellite and star tracking, rotator control, 2D and 3D mapping and much more.It has native support for Airspy, Airspy HF, Airspy Discovery, FUNcube, HackRF, KiwiSDR, LimeSDR, LimeSDR Mini, LimeRFE, Perseus, PlutoSDR, RTL-SDR, USRP B210, XTRX, and more devices via Soapy and audio interfaces.Please note that the SDRangel Flatpak requires udev rules for most SDR devices to be installed on the system to work properly. You will have to either install the tools for your SDR via regular package manager or manually download the udev rules from https://github.com/flathub/org.sdrangel.SDRangel/tree/master/udev-rules and copy them into system /etc/udev/rules.d/ before using SDRangel.

SDRangel

This is a COMMUNITY-MAINTAINED UNOFFICIAL Flatpak package.Threema for desktop is a desktop client for Threema, a privacy-focused end-to-end encrypted mobile messenger hosted and developed in Switzerland. With Threema for desktop, you can use Threema on your desktop without compromising security.Threema for desktop currently requires an active connection to Threema installed on a smartphone. The next major update of the desktop app will not only introduce a completely redesigned user interface, it will also be based on a totally new architecture. Thanks to multi-device functionality, version 2.0 will no longer require an active connection to your mobile device.

Threema

Threema for desktop is a desktop client for Threema, a  privacy-focused end-to-end encrypted mobile messenger hosted and developed in Switzerland. UNOFFICIAL PACKAGE.

SchildiChat Web/Desktop is a fork of Element Web/Desktop.The most important changes of SchildiChat compared to Element are:A unifed chat list for both direct and group chatsMessage bubblesBigger items in the room list… and more!Preliminary Wayland support now available.To try running SchildiChat natively under Wayland, run:flatpak run chat.schildi.desktop --enable-features=UseOzonePlatform --ozone-platform=waylandFor GNOME, window decorations are currently missing and you'll have to use keyboard shortcuts instead to resize the window.

SchildiChat

SchildiChat is a Matrix client based on Element with a more traditional instant messaging experience.

Dino is a modern open-source chat client for the desktop. It focuses on providing a clean and reliable Jabber/XMPP experience while having your privacy in mind.It supports end-to-end encryption with OMEMO and OpenPGP and allows configuring privacy-related features such as read receipts and typing notifications.Dino fetches history from the server and synchronizes messages with other devices.

Dino

KGet is a versatile and user-friendly download manager.Features:Downloading files from FTP and HTTP(S) sources.Pausing and resuming of downloading files, as well as the ability to restart a download.Tells lots of information about current and pending downloads.Embedding into system tray.Integration with the Konqueror web browser.Metalink support which contain multiple URLs for downloads, along with checksums and other information.

KGet

Transmission Remote Gtk allows you to remotely manage the Transmission BitTorrent client using its RPC interface. You can use it to to manage torrents (start/stop/verify/reannounce/remove/remove and delete), add new ones (it works as a .torrent fle handler from a webbrowser), and configure settings on transmission-daemon.

Transmission Remote

Remotely manage the Transmission BitTorrent client

Firestorm is to Virtual Worlds what Firefox and Google Chrome is to the Internet. This is the Second Life(tm) version of the Firestorm Viewer.This wrapper is not verified by, affiliated with, or supported by Linden Labs or the Firestorm Project.

Firestorm Viewer

Guilded is the best app for gaming chat. Guilded is perfect for gaming with friends, clans, guilds, communities, esports, LFG and teams. And it's free.Guilded Is The Best Place To ChatGet unlimited emotes. Any server. Forever.World-class voice chat with voice rooms, broadcasting, whispering and priority speakingVideo chat and screenshare in high-resThreads to keep conversations nice and tidyGuilded Has Powerful ServersNever miss an event with calendars and schedulingCustomize with robust roles and permissionsStay organized with docs, media and announcements in one placeManage recruitment applications and formsGuilded Is Made For GamingPlay in tournaments against other servers and cause discord in your enemies' ranksBots! Build your own with our bot builderChat on any platform with our companion apps at www.guilded.ggStream and screen share in any server channel (beta)This wrapper is not verified by, affiliated with, or supported by Guilded Inc.

Guilded

Gajim aims to be an easy to use and fully-featured XMPP client. Just chat with your friends or family, easily share pictures and thoughts or discuss the news with your groups.Chat securely with End-to-End encryption via OMEMO or OpenPGP.Gajim integrates well with your other devices: simply continue conversations on your mobile device.Features:Never miss a message, keep all your chat clients synchronizedInvite friends to group chats or join oneEasily send pictures, videos or other files to friends and groupsChat securely with End-to-End encryption via OMEMO or OpenPGPUse your favorite emoticons, set your own profile pictureKeep and manage all your chat historyOrganize your chats with workspacesAutomatic spell-checking for your messagesConnect to other Messengers via Transports (Facebook, IRC, ...)Lookup things on Wikipedia, dictionaries or other search engines directly from the chat windowSet your activity or tune to show your friends how you are feelingSupport for multiple accountsXML console to see what's happening on the protocol layerSupport for service discovery including nodes and search for usersEven more features via plugins

Gajim

nscan

Pidgin is a chat program which lets you log in to accounts on multiple chat networks simultaneouslyThis means that you can be chatting with friends on AIM, talking to a friend on Google Talk, and sitting in an IRC chat room all at the same time

Pidgin

Akregator is a news feed reader. It enables you to follow news sites, blogs and other RSS/Atom-enabled websites without the need to manually check for updates using a web browser. Akregator is designed to be both easy to use and to be powerful enough to read hundreds of news sources conveniently. It comes with a fast search, advanced archiving functionality and an internal browser for easy news reading.

Akregator

Cockpit Client provides a graphical interface to your servers, containers, and virtual machines.  Connections are made over SSH, using the SSH configuration of the local user (including aliases, known hosts, key files, hardware tokens, etc).The server needs to have Cockpit installed, but the Cockpit webserver doesn't need to be enabled, and no extra ports need to be opened.

Cockpit Client

gPodder lets you manage your Podcast subscriptions, discover new content and download episodes to your devices.You can also take advantage of the service gpodder.net, which lets you sync subscriptions, playback progress and starred episodes.

gPodder

Remote Viewer provides a graphical viewer for the guest OS display. At this time it supports guest OS using the VNC or SPICE protocols. Further protocols may be supported in the future as user demand dictates. The viewer can connect directly to both local and remotely hosted guest OS, optionally using SSL/TLS encryption.

Remote Viewer

Business chats, one-click conference calls and shared documents – all protected with end-to-end encryption. Also available for personal use.

Wire

ModernDeck is an app/extension running atop TweetDeck that brings a new, Material Design-inspired interface, as well as new customization features.

ModernDeck

i2pd (I2P Daemon) is a full-featured C++ implementation of I2P client.I2P (Invisible Internet Protocol) is a universal anonymous network layer. All communications over I2P are anonymous and end-to-end encrypted, participants don't reveal their real IP addresses.I2P allows people from all around the world to communicate and share information without restrictions.Features:Distributed anonymous networking frameworkEnd-to-end encrypted communicationsSmall footprint, simple dependencies, fast performanceRich set of APIs for developers of secure applications

i2pd

Synology Assistant is an easy-to-use tool for managing Synology NAS in the local area network (LAN), especially when you have multiple machines working within the LAN. With Synology Assistant, you can share printers, set up WOL, and configure network drives.NOTE: This wrapper is not verified by, affiliated with, or supported by Synology Inc.

Synology Assistant

Tool for managing Synology NAS in the local network

Chat over email and head back to the future with us!Delta Chat is like Telegram or Whatsapp but without the tracking or central control. Check out our GDPR compliancy statement.Delta Chat doesn’t have their own servers but uses the most massive and diverse open messaging system ever: the existing e-mail server network.Chat with anyone if you know their e-mail address, no need for them to install DeltaChat! All you need is a standard e-mail account.

Delta Chat

Cinny is a matrix.org client focusing primarily on simple, elegant and secure interface protected by e2ee with the power of open source.Features: User-friendly design, Login and register, Full space support, Encryption and emoji verification, Ability to create new rooms and tweak settings, Support replies, markdown, message editing, Dark, light, and black themes.

Cinny

Yet another Matrix client with simple, elegant and secure interface.

Networking