Open Source Chat Software - Page 5
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UIChat
AX.25 UI based chat application
Version 2.0 users should be at Java 1.7 or newer. An AX.25 UI based chat application, which allows the use of any modem type with KISS connectivity, including the famous FLDIGI!! UIChat is patterned after the FSQCall application and provides automated responses based on action characters included in the text of the UI frame. Both a Bash shell version and a Java gui version are available. -
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CSS-Only Chat
A truly monstrous async web chat using no JS whatsoever
css-only-chat is a proof-of-concept demonstration that implements a functioning chat interface using only HTML and CSS, without any JavaScript or backend logic. The project showcases creative use of CSS selectors, checkboxes, labels, and the :checked pseudo-class to mimic interactive behaviors normally handled by JavaScript. Messages are pre-written in the HTML and displayed based on user interaction, making it more of a playful experiment than a real messaging platform. Its main purpose is to illustrate the limits of CSS as a programming and UI tool, serving as both an educational example and a bit of humor within the developer community. By pushing CSS beyond its conventional role, it demonstrates how user interfaces can be simulated through styling tricks and static structures. Although not suitable for production use, it stands as a fun exercise in front-end creativity and unconventional coding challenges. -
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Chat SDK
A unified TypeScript SDK for building chat bots
Vercel Chat SDK is a unified TypeScript SDK for building chat bots across multiple messaging platforms. It lets developers write bot logic once and deploy it to services such as Slack, Microsoft Teams, Google Chat, Discord, Telegram, GitHub, Linear, WhatsApp, and more. The project provides adapters, event handlers, state handling, slash commands, buttons, modals, cards, file handling, direct messages, and ephemeral messages. It also supports AI streaming patterns for LLM-powered assistants in different chat environments. A CLI can scaffold a minimal Next.js bot app with routes, configuration, dependencies, and environment examples. The SDK is especially useful for teams building cross-platform bots without rewriting the same interaction logic for every service. -
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Claudia Bot Builder
Create chat bots for Facebook Messenger, Slack, Amazon Alexa, etc.
Claudia Bot Builder helps developers create and deploy chat-bots for various platforms in minutes to AWS Lambda. It simplifies the messaging workflows, automatically sets up the correct web hooks, and guides you through configuration steps, so that you can focus on important business problems and not have to worry about infrastructure code. This code is enough to operate bots for all supported platforms. Claudia Bot Builder automatically parses the incoming messages into a common format, so you can handle it easily. It also automatically packages the response into the correct message template for the requesting bot, so you do not have to worry about individual bot protocols. Claudia Bot Builder doesn't have a stand-alone http server in the background (such as Express, Hapi, etc.), instead it uses API Gateway and it's not trivial to simulate similar environment locally. Deploy it with --version test to create a separate test environment directly in AWS Lambda. -
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Cog
Bringing the power of the command line to chat
Cog brings the power of the command line to the place you collaborate with your team all the time, your chat window. Powerful access control means you can collaborate around even the most sensitive tasks with confidence. A focus on extensibility and adaptability means that you can respond quickly to the unexpected, without your team losing visibility. Use Cog to manage your infrastructure, support peer learning, and conduct collaborative research at the same time, right from chat. Cog is easy to install and simple to operate while remaining powerful enough to handle complex enterprise workflows. Cog brings the power of the command line to the place you collaborate with your team all the time, your chat window. Powerful access control means you can collaborate around even the most sensitive tasks with confidence. A focus on extensibility and adaptability means that you can respond quickly to the unexpected, without your team losing visibility. -
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Discord-Sandbox
Alternative electron-based Discord client with custom telemetry
Are you worried Discord is watching what programs you have open or listening to your mic even while you're not pressing your push-to-talk key? Discord-Sandbox isolates the Discord client from reading background processes by running the Discord web client inside of a webview, which is finally contained inside the Electron process. While I cannot guarantee this client protects you from anything, I have tried my best to remove Discord's data collection. As detailed from Luna Mendes' discord-unofficial-docs, Discord sends telemetry data over the /api/science endpoint. This project does its best to disable this telemetry communication by running javascript code into the webview that adds a blacklist/whitelist to the default XMLHttpRequest behavior. In this way, we explicitly block all communication with the science address, while simultaneously whitelisting addresses needed for minimum Discord functionality. See the full code in mainRender.js. -
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Dissent
Tiny native Discord app
Dissent is a tiny third-party Discord client built for a native Linux desktop experience. It was previously known as gtkcord4 and is built with GTK4 and libadwaita for a modern, lightweight interface. The app focuses on text chat, speed, simplicity, and lower overhead instead of matching every feature of the official Discord client. It supports Markdown, custom emoji, guild folders, channel categories, tabs, quick switching, file handling, and custom CSS theming. Some advanced areas, such as threads, forums, reactions, and AI summaries, are only partially supported. Dissent does not aim to support voice chat and should be used with awareness that unofficial Discord clients can create account risk. -
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EOL Rambox CE
Free and Open Source messaging and emailing app
Free, Open Source and cross-platform messaging and emailing app that combines common web applications into one. -
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Element Android
A glossy Matrix collaboration client for Android
Element Android is a glossy Matrix collaboration client for Android, based on a new Android SDK fully written in Kotlin. A total rewrite of Riot-Android, Element is an all-in-one secure chat app made possible through the open global Matrix network. It is a messenger that allows users to talk to anyone regardless of their app, while providing unparalleled privacy and security. It protects conversations from data-mining and ads with proper end-to-end encryption, so you can feel totally secure. Element is used by millions all over the world for their business, organizations, and even for personal and home use. It is part of the Matrix ecosystem, which is an open network for secure, decentralised communication governed by The Matrix.org Foundation. -
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Halloy - IRC Client
IRC application written in Rust
Halloy is an open-source IRC client written in Rust, utilizing the Iced GUI library. It aims to provide a simple and fast client for Mac, Windows, and Linux platforms -
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InstaFix
Fix Instagram embeds in Discord (and Telegram!)
InstaFix is an archived Go service that fixes Instagram embeds for platforms such as Discord and Telegram. It works by transforming Instagram links into alternate URLs that return cleaner preview metadata, images, videos, or gallery-style displays. The project was inspired by similar social embed fixers and is not affiliated with Instagram. Users could choose different URL prefixes depending on whether they wanted the full embed, media-only output, or a gallery-focused view. The service can be self-hosted locally, deployed with Docker, or adapted for Kubernetes-style infrastructure. Since it is archived, it is best understood as a legacy embed-fixing service and reference implementation. -
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Kizzy
A Discord Rich Presence manager for Android fully written in Kotlin
Kizzy is an Android app for managing Discord Rich Presence from a mobile device. It is written in Kotlin and built with Jetpack Compose and Material 3 for a modern Android interface. The app lets users customize how their Discord activity appears by creating and managing rich presence configurations. It is aimed at people who want mobile control over status displays without needing a desktop RPC setup. The project includes documentation, translation support, build instructions, releases, and open-source licensing under GPL-3.0. Kizzy is useful for Android users who want a polished, configurable Discord presence manager with a native app feel. -
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Laravel Chat
A Laravel chat package. You can use this package to create a chat app
Create a Chat application for your multiple Models. -
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Laravel Telegraph
Telegraph is a Laravel package for fluently interacting with Telegram
Telegraph is a Laravel package for fluently interacting with Telegram Bots made by def:studio. -
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Official Android SDK for Stream Chat
Android Chat SDK ➜ Stream Chat API. UI component libraries for chat
This is the official Android SDK for Stream Chat, a service for building chat and messaging applications. This library includes both a low-level chat SDK and a set of reusable UI components. Most users start with the UI components and fall back to the lower-level API when they want to customize things. We're proud to say that we're the first Android Chat SDK that supports Jetpack Compose! We released our Compose UI Components one day after the official Jetpack Compose 1.0 release and our team members have been working hard on it since then. Now it's mature and stable enough for us to officially recommend it for all new applications and all modern chat implementations. If you're looking for something highly customizable and extremely performant, check out our Compose SDK. -
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OpenCord
An open-source Material You implementation of the Discord Android app
OpenCord is an archived open-source Android client project that aimed to recreate Discord with a Material You interface. It was built in Kotlin and focused on bringing a more native Android design language to a Discord-style mobile experience. The project was still a work in progress and prioritized implementing stock client behavior before adding custom features. Its README clearly warns that the project is discontinued and that downloading the release APK may create Discord Terms of Service risk. OpenCord is best understood as a historical or experimental client implementation rather than a recommended daily-use app. It remains useful for developers studying Android, Jetpack Compose, Discord-like interfaces, and unofficial client architecture. -
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Rasa
Open source machine learning framework to automate text conversations
Rasa is an open source machine learning framework to automate text-and voice-based conversations. With Rasa, you can build contextual assistants on Facebook Messenger, Slack, Google Hangouts, Webex Teams, Microsoft Bot Framework, Rocket.Chat, Mattermost, Telegram, and Twilio or on your own custom conversational channels. Rasa helps you build contextual assistants capable of having layered conversations with lots of back-and-forths. In order for a human to have a meaningful exchange with a contextual assistant, the assistant needs to be able to use context to build on things that were previously discussed. Rasa enables you to build assistants that can do this in a scalable way. Rasa uses Poetry for packaging and dependency management. If you want to build it from the source, you have to install Poetry first. By default, Poetry will try to use the currently activated Python version to create the virtual environment for the current project automatically. -
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Rocket.Chat Android
Legacy mobile Rocket.Chat client in Kotlin for Android
Rocket.Chat is a free and open-source team chat collaboration platform that allows users to communicate securely in real-time across devices on the web, desktop or mobile and to customize their interface with a range of plugins, themes and integrations with other key software. By opting for Rocket.Chat, users also benefit from free audio and video conferencing, guest access, screen and file sharing, LiveChat, LDAP Group Sync, two-factor authentication (2FA), E2E encryption, SSO, dozens of OAuth providers and unlimited users, guests, channels, messages, searches, and files. Users can set up Rocket.Chat on the cloud or by hosting their own servers on-premises. -
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Spacebar Server
A reimplementation of the Discord.com backend, built with Typescript
Spacebar Server is a Discord-compatible backend reimplementation written mainly in TypeScript. It aims to let users run a self-hosted communication server that can work with existing Discord-style bots, applications, and clients where compatibility allows. The repository includes the HTTP API server, WebSocket gateway, CDN server, WebRTC server, request and response schemas, database models, and administrative utilities. It is part of the broader Spacebar ecosystem for decentralized, self-hostable chat infrastructure. The project is useful for developers interested in Discord-like systems, real-time communication protocols, and independently operated chat services. Some compatibility gaps still exist, so not every Discord client can connect perfectly to a Spacebar instance. -
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Stoat
The software powering Stoat
Stoat is an open-source communication platform and ecosystem designed to provide a modern alternative to traditional chat applications with support for self-hosting and extensibility. The project includes multiple components such as backend services, client applications, and supporting infrastructure, forming a complete messaging system that can be deployed across different environments. The repository for stoat.chat specifically serves as a central web hub that provides access to downloads, documentation, and information about the platform. StoatChat is built with modern technologies such as Rust and TypeScript and integrates with systems like Revolt to deliver real-time messaging capabilities. The platform supports multiple clients including web, desktop, and mobile applications, allowing users to interact across devices seamlessly. It also emphasizes developer flexibility by offering APIs and SDKs that enable integration with custom tools and services. -
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Unofficial Discord 3DS Client
A simple unofficial Discord client to use as an example
This just a simple Discord client for the 3DS build using the Sleepy Discord library and the Wslay library. Also please, notice that this is not an official Discord client, and is not made by the Discord staff. I noticed that a few Discord clients for consoles were using the Discord API incorrectly causing huge issues for those clients. So, I decided to make this as an example of how I think it should have been done. First, you need a token to an account that you own, because Discord doesn't want people asking for passwords. Anyway, place this into a file called discord token.txt in the root of your sd card. -
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gtkcord4
GTK4 Discord client in Go, attempt #4
GTK4 Discord client in Go, attempt #4. gtkcord4 needs GTK4, object-introspection, and optionally libcanberra. If compiling, then the library headers are also required. gtkcord4's CI automatically builds each release for Linux x86_64 and aarch64. See the Releases page for the binaries. -
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lanyard
Expose your Discord presence and activities to a RESTful API
Lanyard is a service that exposes live Discord presence and activity data through a REST API and WebSocket connection. It lets users display their Discord status, current activities, Spotify listening data, and related profile information on websites or external apps. The public service can be used quickly by joining the Lanyard Discord server, but the project also supports self-hosting. It includes a real-time key-value store that can be updated through the bot or API and emitted through presence updates. Developers can subscribe to one user, multiple users, or all monitored users through its socket protocol. Lanyard is especially useful for personal websites, GitHub profile widgets, dashboards, and real-time presence visualizations. -
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libsignal
Home to the Signal Protocol and other cryptographic primitives
libsignal is the foundational cryptographic library that implements the Signal Protocol and other essential primitives used across the official Signal clients and servers, enabling secure end-to-end encrypted communication. Written primarily in Rust with bindings and APIs surfaced for Java, Swift, and TypeScript, this library encapsulates critical algorithms like the Double Ratchet, prekey mechanisms, secure key storage, and zero-knowledge group primitives, along with additional utilities for media handling and device key transfer. libsignal abstracts complex cryptographic constructions into reusable components that client applications can adopt to ensure forward secrecy, authentication, and integrity without re-implementing core security logic. Although its primary use is within the Signal ecosystem, its documentation and exposed interfaces allow developers to explore modern secure messaging primitives or use pieces of the protocol in experimental applications. -
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phpFreeChat is a free, simple to install, fast and customizable chat that uses by default files for message and nickname storage. It uses AJAX to smoothly refresh and display the chat zone and the nickname zone.