Work · alternatives · 2026

24 alternatives to Let's Chat

Like Slack, but opensource and self-hosted.

Let's Chat is a self-hosted messaging application built on Node.js and MongoDB, designed for small teams seeking an open-source alternative to commercial chat services. It offers persistent messaging with features… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Let's Chat launched in 2015; newer entries below may have overtaken it.

1
Let's Chat, a self-hosted chat app for small teams▲350
Self-hosted chat for small teams.
2015 · sdelements.github.io · its alternatives →
2
Chatwoot▲329
Chatwoot is an AI-powered, open-source customer support platform. Self-host or use our cloud to manage live chat, email, WhatsApp, and social conversations.
2021 · chatwoot.com · its alternatives →
3
Node.js Messenger▲140
A small alternative to Slack
2017 · totaljs.com · its alternatives →
4
Open-Source Alternative to Intercom, Drift, Zendesk, FreshChat▲417
Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬 - chatwoot/chatwoot
2019 · github.com · its alternatives →
5
#Startup Chat▲358
The global startup community, on Slack
2014 · hashtagstartup.co · its alternatives →
6
Open Source alternative to services like Intercom.io and Smooch▲163
Client library for Minimal Chat. Contribute to minimalchat/client development by creating an account on GitHub.
2017 · github.com · its alternatives →
7
Stream Chat▲327
Build, code and ship in app messaging in a few hours
2019 · getstream.io · its alternatives →
8
Hangouts Chat by Google (Early Access)▲450
Bring your team together
2017 · blog.google · its alternatives →
9
I made a self-hosted ChatGPT UI▲141
An open-source ChatGPT app with a voice. Contribute to cogentapps/chat-with-gpt development by creating an account on GitHub.
2023 · github.com · its alternatives →
10
Smallchat Beta▲372
Slack integration for chatting with visitors to your website
2017 · small.chat · its alternatives →
11
Smallchat 2.0▲202
Slack app for chatting with visitors to your website.
2018 · small.chat · its alternatives →
12
Rocket.Chat▲152
Your own open source Slack-like chat
2015 · rocket.chat · its alternatives →
13
Chaton▲88
1:1 video chat P2P open source
2021 · its alternatives →
14
SocialChat by Buffer▲214
Start conversations on your site. Keep them going on social.
2018 · buffer.com · its alternatives →
15
Chat▲88
turn your backend into a chat app instantly
Mar 2026 · github.com · its alternatives →
16
Jan▲329
Open-source ChatGPT alternative that runs 100% offline
2024 · jan.ai · its alternatives →
17MC
Mogo Chat – open-source team chat app written in Elixir and Ember.js▲140
2014 · getmogochat.com · its alternatives →
18
KoiHi▲97
Make your own WhatsApp with E2EE self hosted chat solution
2023 · koihi.com · its alternatives →
19
Converse.js▲126
A free and open-source chat client for your website
2014 · conversejs.org · its alternatives →
20AD
Anonymous Discussion Platform For Any Topic (think Reddit meets Slack)▲72
2017 · hashtags.chat · its alternatives →
21
Push Chat▲113
Your decentralized, uncensorable & web3-native chat solution
2023 · app.push.org · its alternatives →
22
Chat'Inn▲69
Miminal, Clean and Realtime Global Chat Application
2022 · chat-inn.vercel.app · its alternatives →
23
Chatfully▲145
All-in-one chat tool for teams: texting, web chat, & more
2021 · trychatfully.com · its alternatives →
24
Free HelpCrunch Live Chat▲90
Free live chat & in-app messenger for startups
2018 · helpcrunch.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →