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Best Customer Support Open Source Tools in 2026

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Customer Support

Scoold

stars 922forks 229

Self-hosted Q&A platform for internal team knowledge

Knowledge Management Knowledge Base Self Hosted+5

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Chatwoot

stars 36.3Kforks 8.8K

Self-hosted customer support platform with live chat and AI

Customer Support Chat Knowledge Base+4

UnInbox

stars 1.8Kforks 125

Open source collaborative email with shared team inboxes

Email Workflow Automation Self Hosted+3

Formbricks

stars 12.8Kforks 2.5K

Collect NPS, CSAT, and user feedback with privacy-first hosting

User Feedback Management Self Hosted Open Core+4