Top Alternatives to Nimbuzz

Telegram is a fast and secure cloud-based instant messaging platform offering robust privacy features, large group support, file sharing, and cross-platform synchronization, making it a versatile communication tool.

WhatsApp Messenger is a widely used free messaging and calling app, available globally. It enables communication through text, voice messages, and video calls, facilitating connections between individuals and groups across various devices and platforms.

Trillian is a versatile, multi-protocol instant messaging client that unifies various communication platforms like IRC, XMPP, and more into a single, user-friendly interface. It's designed for both personal and team collaboration, offering features like encrypted chats, group collaboration tools, and extensive customization options.

Viber is a comprehensive messaging and VoIP application enabling free and secure calls and messages to users worldwide. It offers robust features for both individual and group communication across various devices.

Signal is a secure, open-source messaging application that uses end-to-end encryption to protect user communications. It offers text messaging, voice and video calls, group chats, and file sharing, all with a strong focus on privacy and security. Available on multiple platforms, Signal is a leading choice for individuals prioritizing confidential conversations.

Jitsi is a free and open-source suite of secure, flexible communication tools. It offers multi-platform support for voice (VoIP), video conferencing, and instant messaging, emphasizing privacy and ease of use with no account required to start a meeting.

Digsby was a multi-protocol instant messaging client that unified connections to various chat networks and social media platforms. It allowed users to manage their conversations and updates from services like Aim, Msn, Yahoo, Twitter, Facebook, and Myspace all within a single, integrated application.

Imo is a free instant messaging and video calling application designed for global reach, prioritizing reliability, particularly in regions with unstable network conditions. It offers features like voice and video calls, chat, group messaging, and various multimedia sharing options.

Facebook Messenger is the official messaging application from Facebook, enabling users to connect with friends and family through text, voice, and video calls, as well as group conversations and media sharing.

Empathy is a versatile multi-protocol messaging client designed for text, voice, and video communication across numerous IM networks. It offers features like file transfers, location sharing, and integration with various services, providing a unified communication experience.

IM+ is a versatile instant messaging application designed to unify communication across multiple platforms. It supports a wide array of popular services, including Google Talk, Twitter DMs, Yahoo!, AIM/iChat, ICQ, Jabber, and even Slack. IM+ simplifies staying connected with friends, family, and colleagues, offering a centralized hub for all your chat needs.

Linphone is a free and open-source Voice over IP (VoIP) application and SIP client available on multiple platforms. It enables encrypted voice and video calls, instant messaging, and file sharing, offering a privacy-focused communication solution.

LINE is a versatile communication platform offering free voice and video calls, messaging, and a wide array of interactive features to connect with friends and family globally. It goes beyond basic chat with unique stickers, timeline posts, and integration with various services, providing a comprehensive social and communication experience in one app.

Psi is a robust, open-source instant messaging client built on the XMPP protocol. It's known for its focus on speed, efficiency, and adherence to XMPP standards, offering a clean interface and strong privacy features for secure and reliable communication.

Wire is a secure, cross-platform messaging and collaboration client offering end-to-end encryption by default for all communication types including messaging, voice and video calls, and file sharing across desktop and mobile devices.

ICQ is a veteran instant messaging platform offering a wide range of communication features, including text chat, voice and video calls, screen sharing, and group chats. It aims to provide a reliable and feature-rich messaging experience with a focus on privacy and security.

Fring was a pioneering mobile application that unified communication across popular platforms like Skype, MSN Messenger, ICQ, and Google Talk directly from your iPhone, offering voice calls, video calls, and messaging.

WeChat is a comprehensive mobile app offering instant messaging, social networking, payment services, and access to a wide range of mini-programs. It facilitates communication through text, voice, and video, supports group interactions, and integrates various lifestyle services.

Kik Messenger is a popular instant messaging application designed for smartphones. It enables users to send text messages, photos, videos, and participate in group chats. Known for its user-friendly interface and focus on the social aspect of messaging, Kik offers a space for communication and connection.

Gajim is a free and open-source instant messaging client for the XMPP protocol. Built using the GTK+ toolkit, it offers a wide array of features for secure and flexible communication, including encrypted chat, group conversations, multi-protocol support via gateways, and extensive customization options.

iMessage is a secure instant messaging service developed by Apple, seamlessly integrated across its ecosystem of devices. It allows users to send text messages, photos, videos, audio messages, and more, with end-to-end encryption for enhanced privacy.

Xabber is a free and open-source XMPP (Jabber) client for Android. It provides secure and reliable instant messaging with support for various XMPP features, including encryption, group chat, and decentralized communication. Leveraging the open XMPP protocol, Xabber offers a privacy-friendly alternative to centralized messaging platforms.

CSipSimple is a powerful and highly configurable open-source VoIP application for Android devices, enabling high-quality voice and video calls, messaging, and integration with various SIP providers. It prioritizes security and offers advanced features for both individual users and businesses.

Tango is a comprehensive communication platform that offers free messaging, high-quality video and voice calls, and features for discovering and connecting with new people. It integrates social elements like photo sharing and groups, alongside essential security and privacy features.

KakaoTalk is a popular mobile messaging service offering free text, voice, and video calls. Primarily used in South Korea, it provides a comprehensive communication platform with features like group chats, stickers, and a strong emphasis on user privacy and security.

BlackBerry Messenger (BBM) was a pioneering instant messaging and videotelephony application, originally exclusive to BlackBerry devices, which expanded to support iOS, Android, and Windows Mobile. It facilitated secure text messaging, voice calls, and video calls.

Conversations is a privacy-focused, open-source XMPP/Jabber client for Android. It offers robust end-to-end encryption using OMEMO and OTR, supports modern XMPP extensions, and provides a secure, decentralized messaging experience without relying on proprietary servers. It's an ideal choice for users prioritizing security and open standards.

Zoiper is a versatile and easy-to-use SIP softphone designed for clear voice and video communications. It offers excellent audio quality, robust security features, and seamless integration with various communication protocols, making it ideal for personal and business use.

Talkatone is a mobile application that provides free calls and texts to US and Canadian phone numbers using Wi-Fi or cellular data. It offers a true US/Canadian phone number, enabling communication with anyone, anywhere, without reliance on a traditional carrier plan.

Telephone is a user-friendly SIP softphone application for macOS that enables encrypted voice calls over the internet or a private network. It supports various codecs and offers features like call recording, address book integration, and secure communication.

QuteCom, formerly WengoPhone, was a free and open-source VoIP client supporting the SIP protocol. It enabled users to make voice and video calls, send instant messages, and connect with contacts across various networks, including Google Talk.

Zulip is a powerful open-source group chat application designed for team collaboration. It uniquely structures conversations around topics, enabling users to easily catch up on important discussions and manage information overload. Zulip facilitates secure communication with integrated file sharing and various integrations.

Disa is a unified messaging hub that consolidates conversations from various services like SMS, Facebook, and WhatsApp into a single interface, simplifying communication management.

Tkabber is a free and open-source instant messaging client specifically designed for the XMPP protocol. Built with the Tk toolkit, it offers a lightweight yet extensible platform for text-based chat, group conversations, and various interactive functionalities supported by XMPP.

Dasher Messenger is a feature-rich instant messaging application designed for connecting with friends and groups. It goes beyond basic text messaging, offering capabilities to share various forms of media, integrate external content, and even facilitate peer-to-peer transactions.

Toky is a comprehensive cloud-based phone system designed for businesses, offering voice calls, SMS, call recording, and integrations with various CRM and business tools. It provides teams with a flexible and powerful communication platform for customer support and internal collaboration.

YakYak is an unofficial desktop client for Google Hangouts, providing a dedicated application experience outside of a web browser with features focused on convenience and improved usability.