HexabotOpen-source platform for building custom AI chatbots and multi-channel agents.

4.4 (5)

Reviewed by Daniel Nikulshyn·Updated May 2026

Open Source Chatbots Self-Hosted NLU Conversational AI No-Code Multi-Channel Developer Tools

Overview

Hexabot is an open-source framework for designing, deploying, and managing AI-powered chatbots and conversational agents. It provides a visual flow builder, NLU capabilities, and integrations that let teams create assistants tailored to their own data, tone, and workflows without locking into a proprietary vendor. The platform supports multi-channel messaging, plugin extensions, and content management for knowledge bases, making it suitable for customer support, internal tools, and experimental agent projects. Because the codebase is fully open, developers can self-host, audit, and extend Hexabot to fit specific compliance or product requirements.

Key features

Visual conversation flow editor
Built-in NLU engine
Multi-channel messaging support
Plugin and extension system
Content and knowledge management
Self-hosted deployment options

Pricing

Model: Free
Category: AI Agents Platform
Rating: 4.4 / 5 (5)

Use cases

Self-hosted customer support assistant

Deploy a branded support chatbot across multiple messaging channels, trained on your own knowledge base and hosted on your infrastructure for full data control.

Internal employee help desk bot

Use the visual flow builder and content management to create internal assistants that answer HR, IT, or policy questions without sending data to third-party vendors.

Custom multi-channel conversational agent

Build and extend agents with plugins to handle workflows across web, social, and messaging apps, tailoring NLU and tone to specific product needs.

Experimental AI agent prototyping

Leverage the open codebase to audit, fork, and extend Hexabot for research or experimental agent projects requiring custom integrations and compliance.

Pros & Cons

Pros

Fully open-source and self-hostable
Visual flow builder for non-developers
Multi-channel and plugin extensible
Customizable NLU and knowledge base

Cons

Self-hosting requires technical setup
Smaller ecosystem than commercial rivals
Documentation still maturing

Reviews

4.4

Average from 5 ratings.

Ingrid Bauer

May 26, 2026

Solid for our team

We rolled this out across the team last quarter and fully open-source and self-hostable. Visual conversation flow editor fits neatly into how we already work, and built-in NLU engine removed a step we used to do by hand. Self-hosting requires technical setup, which is the main caveat, but it has held up under daily use.

Grace Okafor

Apr 17, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is self-hosted deployment options — handled better than most — and multi-channel and plugin extensible. Documentation still maturing is my one real gripe. Worth the time if this is your use case.

Wei Chen

Feb 12, 2026

Use it every day

Honestly didn't expect to like it this much. Plugin and extension system is exactly what I needed, and customizable NLU and knowledge base. but I reach for it almost every day now and it just clicks.

Esther Adeyemi

Dec 26, 2025

Years in this space

I've evaluated a lot of these over the years. What stands out here is plugin and extension system — handled better than most — and customizable NLU and knowledge base. Smaller ecosystem than commercial rivals is my one real gripe. Worth the time if this is your use case.

Fatima Zahra

Sep 1, 2025

Does the job

Pretty happy overall. Content and knowledge management just works and multi-channel and plugin extensible. but no dealbreakers — I'd recommend it to a friend without hesitating.