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Handpicked Open Source Alternatives to Paid Softwares

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Best Chatbots Open Source Tools in 2026

Tag

Chatbots

Botpress

stars 22.6Kforks 2K

Visual chatbot builder with LLM integration and live deployment

Chatbots AI Agents LLM+4

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Revolt

stars 3.2Kforks 372

Self-hosted open source Discord alternative with servers

Chat Self Hosted Security+4

Chatwoot

stars 35.6Kforks 8.5K

Self-hosted customer support platform with live chat and AI

Customer Support Chat Knowledge Base+4

Mattermost

stars 38.7Kforks 8.9K

Team messaging for security-sensitive teams with air-gap support

Chat Self Hosted Workflow Automation+3