Best Open Source Alternatives to ChatBot

Compare the best free and open-source alternatives to ChatBot — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 3 alternatives

ChatBot

Proprietary SaaS

ChatBot alternatives compared

Open-source alternatives to ChatBot, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Chaskiq	3,581	—	DockerLinux	Yes	Jun 2026	Visit
Hexabot	1,152	AGPL-3.0	Web	No	Nov 2026	Visit
Cossistant	738	AGPL-3.0	Web	No	Sep 2026	Visit

Top open-source ChatBot alternatives

Chaskiq3,581

Chaskiq is a self-hosted customer messaging platform alternative to Intercom, pairing live chat, onboarding tours, and bots with a GraphQL API.

DockerLinux

vs ChatBot: a free, open-source option you fully control.

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Edgar Sipki

Go & gRPC engineer · founder of EasyP

Promoted

Mentoring for backend developers. Consulting for startups.

Go, gRPC and Protobuf done right, LLM agents in production, and the hard parts of shipping a first product.

GogRPCProtobufLLM agents

sipki.online

Speaker at HighLoad++, GolangConf, AI Conf, DevOpsConf
Helped launch 7+ startups
Maintainer of EasyP, the open-source Protobuf toolkit

Hexabot1,152AGPL-3.0

Hexabot is an open-source alternative to Voiceflow and Manychat that lets teams build visual AI chatbots and automated workflows on self-hosted servers.

Web

vs ChatBot: a free, open-source option you fully control, licensed AGPL-3.0.

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Cossistant738AGPL-3.0

Cossistant is an open-source support platform replacing Intercom with self-hosted React chat widgets, private databases, and trainable AI triage agents.

Web

vs ChatBot: a free, open-source option you fully control, licensed AGPL-3.0.

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