Browse free open source Chat software and projects below. Use the toggles on the left to filter open source Chat software by OS, license, language, programming language, and project status.

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  • 1
    SimpleX

    SimpleX

    The first messaging platform operating without user identifiers

    Other apps have user IDs: Signal, Matrix, Session, Briar, Jami, Cwtch, etc. SimpleX does not, not even random numbers. This radically improves your privacy. The video shows how you connect to your friend via their 1-time QR-code, in person or via a video link. You can also connect by sharing an invitation link. Temporary anonymous pairwise identifiers SimpleX uses temporary anonymous pairwise addresses and credentials for each user contact or group member. It allows to deliver messages without user profile identifiers, providing better meta-data privacy than alternatives. Many communication platforms are vulnerable to MITM attacks by servers or network providers. To prevent it SimpleX apps pass one-time keys out-of-band when you share an address as a link or a QR code. Double-ratchet protocol. OTR messaging with perfect forward secrecy and break-in recovery. NaCL cryptobox in each queue to prevent traffic correlation between message queues if TLS is compromised.
    Downloads: 48 This Week
    Last Update:
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  • 2
    RetroShare

    RetroShare

    [WARNING] Project has moved to http://github.com/Retroshare/Retroshare

    [IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 3
    Discord Token & Message Spammer

    Discord Token & Message Spammer

    best open source discord spammer (token-webhook&more)

    easy to use, set the tokens & channels and have fun, don't use it in a bad way if you catch my drift, if you want to use it you better use a vpn so discord won't ban you're ip smh. DMS version 0.5 the installer file is safe but if u dont trust it just go to the github page and download the source files from there https://github.com/SStorm20/Discord-Message-Spammer-DSM ill keep updating this tool for sure tags: discord token spammer, discord raid tool, discord , discord tool discord tokens, chat spammer license By downloading this, you agree to the Commons Clause license and that you're not allowed to sell this repository or any code from this repository. For more info see https://commonsclause.com/.
    Downloads: 32 This Week
    Last Update:
    See Project
  • 4
    Secure Internet Live Conferencing

    Secure Internet Live Conferencing

    Secure chat and conferencing protocol

    See http://silcnet.org/ for detailed information. SILC provides common chat and conferencing services like private messages, instant messages, channels and groups, and video and audio conferencing. The main difference to other protocols is that SILC has been designed with security as its main feature. All packets and messages sent in SILC network are always encrypted. Private messages are encrypted end-to-end, channel message are encrypted with channel-wide secret key and secure file transfer is protected peer-to-peer.
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    Downloads: 15 This Week
    Last Update:
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  • 5
    GoldBug - Encrypted Communications

    GoldBug - Encrypted Communications

    Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

    GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971
    Downloads: 14 This Week
    Last Update:
    See Project
  • 6
    WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 7
    ufonet

    ufonet

    UFONet - Denial of Service Toolkit

    UFONet - Is a set of hacktivist tools that allow launching coordinated DDoS and DoS attacks and combine both in a single offensive. It also works as an encrypted DarkNET to publish and receive content by creating a global client/server network based on a direct-connect P2P architecture. + FAQ: https://ufonet.03c8.net/FAQ.html -------------------------------------------- -> UFONet-v1.8 [DPh] "DarK-PhAnT0m!" (.zip) -> md5 = [ c8ab016f6370c8391e2e6f9a7cbe990a ] -> UFONet-v1.8 [DPh] "DarK-PhAnT0m!" (.tar.gz) -> md5 = [ 8a4cd86c21db2ad657eb75e6ac0e52d5 ] --------------------------------------------
    Downloads: 10 This Week
    Last Update:
    See Project
  • 8
    Free Instant Messenger Server Client
    This project contain chat server and chat client/admin that works on Windows/Unix.. This is a Free software. Developed by Osama Mohammad Oransa, 2009,contain 3 parts : Chat Server ,Admin and Chat Clients, Based on Java RMI, will support XMPP soon.
    Downloads: 4 This Week
    Last Update:
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  • 9
    sIRC is a Secure IRC Communications Program, using MD5 Checksums and RC4 Cipher encryption.
    Downloads: 5 This Week
    Last Update:
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  • 10

    Networking Tools

    This Program Contains Many Useful Network Tools

    This programs contains the following programs: ------------------------------------------------------------------ 1-Wi-Fi Connector : Connects To Available Wi-Fi Network. 2-Router Password Cracker : To Crack Router's Gateway Password. 3-IP Trace : Trace The IP Address For Any Website. 4-IP Tracker : Gets Your WAN IP Address. 5-Lan Messenger : Chat Between Computers On Same LAN Network. 6-Email Sender : For Sending E-mails Using SMTP Server. 7-Email Viewer : For Receiving E-mails Using POP3 Server. 8-YouTube Downloader : For Downloading YouTube Videos. 9-File Downloader : For Downloading Files.
    Downloads: 3 This Week
    Last Update:
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  • 11
    BlackBelt WASTE - ipv4 / Tor / i2p + AI

    BlackBelt WASTE - ipv4 / Tor / i2p + AI

    A modern, AI-Smart, WASTE p2p for ipv4 and invisible address spaces

    A WASTE client. Download and create your own WASTE networks. For Windows XP 32/64, Vista 32/64, Win7 32/64, Win8 32/64, Win 10, Linux (WINE). *** NEW *** Distributed Autonomic-Performance-Tuning - A Goal-Seeking Swarming-Semiotic AI *** *** Built-in Self-Organising Anti-Spoofing Technology *** *** Medusa - Pure Ephemeral RNG - Routing, Security Extensions *** PLEASE ENSURE YOUR NETWORK USES THE SAME BUILD. FOR BEST RESULTS.
    Downloads: 2 This Week
    Last Update:
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  • 12
    An original bruteforce-based encryption/decryption system. BBE was originally conceived to chat with encrypted text on IRC. mIRC and X-Chat support BBE via script addon. BBE can also encrypt MIME encoded files. Blowfish encryption is currently supported.
    Downloads: 2 This Week
    Last Update:
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  • 13
    Gloster is a secure and decentralized p2p program for small communities working under Linux and Windows
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    ICMP-Chat is a simple chat for the console that uses blowfish encrypted packets for communication.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    Petoron-P2P-Messenger

    Petoron-P2P-Messenger

    minimalistic, secure and autonomous P2P messenger

    Petoron P2P Messenger (P-P2P-M) Architecture: Pure P2P - no servers, no databases Key storage: Keys generated in memory, never stored, erased after use Metadata: Only IP and port exist during the session - everything else is encrypted & obfuscated Encryption: PQS v1.2 - PBKDF2-HMAC-SHA256 (200k), BLAKE2s-MAC, custom stream cipher + fake padding Authentication: BLAKE2s-MAC (16 bytes) - instant failure on any data change Packet obfuscation: --stealth mode - padding, hidden structures Connection: Direct peer-to-peer only Anonymity: No accounts, logins, or phone numbers Third-party access: Impossible without physical access to both peers during session History: No storage — all in RAM, wiped on close Message size: Limited only by RAM & MTU — no artificial limits External dependencies: None DPI/blocking resistance: Harder to detect, can be masked Autonomy: Fully offline until peers connect 26.01.26 Add pqs_chat_tor.py github.com/01alekseev/Petoron-P2P-Messenger
    Downloads: 2 This Week
    Last Update:
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  • 16
    Smoke Crypto Chat Messenger for Android

    Smoke Crypto Chat Messenger for Android

    Smoke: Android Crypto Chat Messenger

    Smoke is an encrypting chat messenger for Android written in Java. Please read the Web site for more information: https://textbrowser.github.io/smoke/ (original, current) https://www.amazon.com/dp/3752691999/ https://smokeappope.sourceforge.io/ (old, third party archive) Smoke App OPE - Open Personal Encryption Download Android APK Installer: https://sourceforge.net/projects/smokeappope/files/ Smoke Source: https://github.com/textbrowser/smoke SmokeStack Source: https://github.com/textbrowser/smokestack (Android) https://github.com/textbrowser/spot-on (Desktop) Smoke appears to be one of the first projects with an open source mobile encrypting chat server., an decentralized and easily-configurable chat server. Smoke is known as the first mobile McEliece Messenger: https://tarnkappe.info/artikel/english/mceliece-messaging-smoke-crypto-chat-the-first-mobile-mceliece-messenger-published-as-a-stable-prototype-worldwide-279847.html
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    psyBNC is an easy-to-use, multi-user, permanent IRC-Bouncer with many features. Some of its features include symmetric ciphering of talk and connections (Blowfish and IDEA) It compiles on Linux, FreeBSD, SunOs and Solaris.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    This ain't your daddy's crypto! We provide a set of C libs and utilities to perform cypherpunk style crypto functions, using your existing OpenPGP keys. Ring signatures; credentials; mental poker; timelines; zero knowledge proofs. Cool stuff!
    Downloads: 1 This Week
    Last Update:
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  • 19

    Ciphero

    Secure communication software

    Securely cipher your message or file, share it, safely de-cipher it.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    The end goal of the FreeMess Project is to produce a cryptographically secure, pseudonymous, cross-platform peer-to-peer Instant Messenger service, piggybacking on FreeNet (http://freenet.sourceforge.net) as a distributed filesystem to hold user data.
    Downloads: 1 This Week
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  • 21
    IP-Chat

    IP-Chat

    UDP based desktop chatting app which supports AES-256 bit encryption.

    Simple Encrypted chat application built with Java. It uses AES-256 bit block cipher algorithm.
    Downloads: 1 This Week
    Last Update:
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  • 22

    ACHAS

    Chat application with asymmetric encryption

    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    AIM Sniff is a network sniffer specifically designed to pick up messages transmitted using the AIM or MSN clients and their derivatives. All information can be sent to STDOUT or a MySQL DB.
    Downloads: 0 This Week
    Last Update:
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  • 24

    Absolutely Safe Chat

    p2p (sockets) chat with inKey encryption (32768 bit).

    p2p (sockets) chat with "inKey 6.0" encryption (key size up to 32768 bit), written on CBuilder 6.0. source code included P.S. http://sourceforge.net/projects/inkey/
    Downloads: 0 This Week
    Last Update:
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  • 25
    Ariesbot, is an ircbot, which will be able of doing basic bot functions such as op/deop/kick/ban/moderate. Plus being able to Wu-Ftpd scans, cgi/php scans port scans, subnet scans and scan for vuln version of apache to nosejob.c.
    Downloads: 0 This Week
    Last Update:
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