Commercial Viber Alternatives

A free, unlimited and open-source chat software. Rocket.Chat have set out to be a replacement for email, HipChat & Slack and is provided as Software-as-a-Service (SaaS) or a self-hosted community edition. Rocket.Chat is feature packed and can be used for video conferencing, file sharing, voice messages and more. The software integrates with third-party services like GitHub, GitLab, JIRA, and Confluence and provides an API that can be used for authentication and integration across these services.

Join.me is a screen sharing, online meetings and team collaboration application. With join.me you and your team can collaborate on projects over audio and video conferencing by phone or internet (VoIP) in real time. Join.me is perfect for remote work and let's team come closer togher.

A web-based service for internal instant messaging and private chat for organizations. HipChat provides one-on-one and group and topic-based chat, as well as cloud-based file storage, video calling, searchable message-history and inline-image viewing. You can use HipChat natively on your desktop or mobile phone, or web browser. HipChat is available for Android, iOS, macOS, Linux, Windows and the Web.