Franz is described as 'Combine and manage multiple messaging and chat services in one interface with customizable tabs, notifications, and cross-platform support for Mac, Windows, and Linux' and is a very popular instant messenger in the social & communications category. There are more than 50 alternatives to Franz for a variety of platforms, including Mac, Windows, Linux, Android and Web-based apps. The best Franz alternative is Rambox, which is free. Other great apps like Franz are Station, Beeper, Ferdium and ElectronIM.
A digital workspace organizer that allows you to unify as many applications as you want, all in one place. It is perfect for those who care about productivity while working with many business and personal apps.
Station is the first open-source smart browser for busy people. A single place for all of your web applications.
Brings together messaging from 14 networks into a single inbox, including WhatsApp, Telegram, Slack, and more, with strong privacy via on-device connections, cross-platform availability, chat reminders, scheduling, and unified notifications for all devices.
Open source cross-platform desktop app uniting messaging, email, productivity, and custom services in a side-by-side interface with easy account-free use, workspaces, built-in Todo panel, resource hibernation, robust privacy controls, and optional multi-device sync.
Free open source Electron based multi instant messaging (IM) client.
Combine all your IM applications (or whatever you want) in a single browser (Electron) window.
The smartest way to work on your computer. Freeter is a productivity app that allows you to gather everything you need for work in one place, organized by projects and workflows, and have a quick access to them.
One app for all your messaging.
WhatsApp, Messenger, Telegram, Skype, Zoom, Google Hangouts, Gmail, Slack, Facebook, Facebook Pages, Instagram, Twitter, Outlook, SnapMap, WeChat, LinkedIn, HipChat, and ChatWork.
Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all those services and do all your chatting within one application.
Ripcord is a desktop chat client for group-centric services like Slack and Discord. It provides a traditional compact desktop interface designed for power users. It's not built on top of web browser technology: it responds quickly to input, sips gently from computer...
Productivity browser featuring unified webmail, website, and web app management, isolated multi-account support, vertical sidebar with grouping, memory-saving tab sleeping, app-to-app linking, built-in chat and screenshare, collaboration workspaces, and strong security.
Hamsket is a fork of Rambox that was started when Rambox moved from being totally free to a "freemium" model.
Bridges between a growing number of protocols: mattermost, IRC, gitter, xmpp, slack, discord, telegram, rocketchat, steam, twitch, ssh-chat, zulip, whatsapp, keybase, matrix, microsoft teams, and more with REST API (mattermost not required!).
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Very similar concept. Rambox is also open-source and supports more applications.