Open Source Customer Support Tools

Alternative toVoiceflow

Visual chatbot builder with LLM integration and live deployment

• 22,570 GitHub stars
• MITLicence MIT
• #Chatbots

Alternative toZendesk

Helpdesk and ticketing on PHP/Symfony with workflow automation

• 19,594 GitHub stars
• OSL-3.0Licence OSL-3.0

Alternative toDocuSign

Open source DocuSign alternative with enterprise e-signatures

• 15,488 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toQualtrics

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

• 13,129 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toJev

Train and run Jev-like decision models on your own infrastructure

• 9,318 GitHub stars
• Apache-2.0Licence Apache-2.0
• #LLMOps

Alternative toVapi

Open source voice agent builder with telephony and BYOK AI support

• 5,915 GitHub stars
• BSD-2-ClauseLicence BSD-2-Clause

Alternative toSalesforce Sales Cloud

Self-hosted CRM with leads, quotes, and workflow automation.

• 5,805 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #CRM

Alternative toTwilio

Self-hosted WhatsApp REST API with multi-account and webhook support

• 4,937 GitHub stars
• MITLicence MIT
• #Chatbots

Alternative toHubSpot Sales Hub

AI agents for WhatsApp sales, fully audited, no per-user pricing

• 4,751 GitHub stars
• MITLicence MIT
• #CRM

InCustomer Support

Open-source tools that work instantly, no signup required

• 4,511 GitHub stars
• GPL-3.0Licence GPL-3.0