Botpress
Leading#4 in Open sourcemedium confidence
A popular open-source chatbot builder (14.8k★) with a visual flow editor and LLM reasoning — good for custom support conversation flows.Our read
Why it ranks #4
About 14.8k GitHub stars and 2.3k forks plus recurring framework-roundup mentions show strong developer awareness, though the current commercial platform is more cloud-centric than the repository label suggests.Here is the catch
open-source and cloud feature sets are not equivalent
usage-based cloud pricing can be difficult to estimate
not a full customer-support ticketing suite
Does this well
approachable visual builder for custom agents
large integration and template ecosystem
good balance of low-code flow control and LLM behavior
Pricing
Checked by hand on 2026-07-23. Prices in this category change often — if this looks wrong, it probably is.
Key features
visual agent and workflow builderknowledge bases and RAGLLM and tool integrationswebchat and channel deployment
Sources we read
Quick facts
More in this area
The rest of the Open source column.- 1ChatwootThe recognized leader in open-source customer support (34.7k★) — a self-hostable omnichannel inbox (chat, email, WhatsApp, social) and the de-facto Intercom/Zendesk alternative, with AI assist.
- 2DifyThe most-starred open-source LLM-app platform (150k★) — build a support bot with RAG and agents grounded in your own product docs. Highest adoption in this list, though general-purpose.
- 3RasaThe mature conversational-AI framework (21.3k★) for teams that want full control over intent, dialogue, and on-prem deployment — a favorite in regulated industries.
- 5TypebotAn open-source conversational form/chatbot builder (10.2k★) for embeddable support and lead-capture flows on websites and apps.
- 6huabeitech/agent-deskSelf-hosted Go helpdesk pairing a knowledge-base AI agent with an agent workspace, ticket workflows and handoff when retrieval is too weak.
- 7Hesper-Labs/owlySelf-hosted support agent covering WhatsApp, email and Twilio voice calls, merging each customer's channels into one profile and conversation history.