1106 Open source projects that are alternatives of or similar to Sum

DEPRECATED

Input Accessory View for Commenting and Chat User Interfaces built in Swift, if you like it please "☆"

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Q-municate iOS repository

Chat SDK Android - Open Source Mobile Messenger

Bot framework powered by Broid

Open-source XMPP client for Android

Android Chat SDK built on Firebase

Qiscus provide everything you need to power up your app with chats. And it's now made simple.

💬 Nio is an upcoming matrix client for iOS.

IRCCloud Desktop App

Keep It Secure Private Data Encryption & Decryption Tool

SwiftUI Chat UI (Client) Framework & Documentation to get started!

Unofficial open source mtproto server written in golang with compatible telegram client.

Providing the Element messaging desktop client packaged for the Fedora, Red Hat(IBM), and OpenSUSE families of linux desktop operating systems.

An alternative official version iGap messenger client

A comparison of messaging services and protocols.

Tinodios: Tinode Messaging Client for iOS

Messaging APIs for multi-platform

🎹 Add a Slack / WhatsApp - style chat keyboard to your Cordova app!

Private talks made easy

This project is demo for Laravel-Talk package and its also Docker ready

Delta Chat Rust Core library, used by Android/iOS/desktop apps and bindings

Crossplatform Telegram client

ChatSecure is a free and open source encrypted chat client for iOS that supports OTR and OMEMO encryption over XMPP.

JSON-RPC 2.0 implementation over WebSockets for Node.js and JavaScript/TypeScript

Android library. Flexible components for chat UI implementation with flexible possibilities for styling, customizing and data management. Made by Stfalcon

MongooseIM is a mobile messaging platform with focus on performance and scalability

Free android xml template for chat/messenger app.

iOS Messaging Application using Cleverbot and ReactorKit

Build your own chat UI with React components in few minutes. Chat UI Kit from chatscope is an open source UI toolkit for developing web chat applications.

🙊 A library of React components for building chat UI's.

🥝 Next generation of the Kiwi IRC web client

Franz is a free messaging app for services like WhatsApp, Slack, Messenger and many more.

Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)

A community-driven replacement for JSQMessagesViewController

A full featured Live Chat, Support & Marketing platform, alternative to Intercom, Drift, Crisp, etc ...

Connect your App to Multiple Messaging Channels with the W3C Open standard.

Javascript (jQuery) Real Time Chat & Messaging plugin

simple but convenient CLI-based Matrix client app for sending and receiving

Instant messaging server for the Extensible Messaging and Presence Protocol (XMPP).

Elegant Facebook Messenger desktop app

The simplest way to de-Google your life and business: Inbox, Calendar, Files, Contacts & much more

Timy - open source mobile app for groups to communicate and organize themselves. Built with flutter.

Conversations is an open source XMPP/Jabber client for Android

MessengerKit is a drop-in UI for messenger interfaces on iOS built in Swift. Centred around a single UIViewController, MessengerKit is themeable to fit your needs and includes a number of powerful features:

⚡️ Crisp API Node Wrapper

QuickBlox iOS SDK for messaging and video calling

JavaScript SDK of QuickBlox cloud backend platform

Open-source Voice & Video Calling and Text Chat App for Kotlin (Android)

BukanMessenger is an Open Source Messenger App build on top ReactNative & MeteorJS

The best free email forwarding for custom domains. Visit our website to get started (SMTP server)

A free, secure and open source app for Android to manage your 2-step verification tokens.

Golang Framework for writing Slack bots

In-memory message queue with an Amazon SQS-compatible interface. Runs stand-alone or embedded.

AsyncDisplayKit(Texture) Smooth Scroll Chat Simulation for Whatsapp and iMessage

Python client for Facebook Messenger Platform Bot

💬 The most complete chat UI for React Native

AWS Event Fork Pipelines helps you build event-driven serverless applications by providing pipelines for common event-handling requirements, such as event backup, analytics, and replay. The pipelines are based on AWS SAM, and can be deployed directly from AWS SAR into your AWS account.

A cross-platform unofficial Google Assistant Client for Desktop (powered by Google Assistant SDK)