Top 30 Open‑Source CRM for Sales Teams Requiring Multi‑Channel Support

Full‑featured fork of SugarCRM CE with omnichannel inbox, workflow automation, and robust reporting; integrates email, telephony, and social streams.

All‑in‑one sales suite offering email‑to‑lead, click‑to‑call, SMS gateway support, and social media integration via extensions.

Lightweight CRM with built‑in email, phone, and live‑chat widgets; supports custom channel connectors and real‑time activity streams.

Highly customizable platform featuring multi‑channel communication (email, SMS, WhatsApp, telephony) and AI‑driven lead scoring.

Gamified open‑source CRM with email integration, click‑to‑call, and social media monitoring via plug‑ins.

Enterprise‑grade CRM offering omnichannel inbox, SMS gateway, and integration with VoIP providers for sales outreach.

Ruby‑on‑Rails based CRM focused on simplicity; includes email sync, phone call logging, and optional chat integrations.

Low‑code, API‑first CRM with built‑in multi‑channel inbox, SMS, and social feed; ideal for building custom sales pipelines.

Modular ERP/CRM combo; community edition provides email integration, live‑chat, and telephony via open‑source adapters.

All‑in‑one business suite with CRM module; supports email campaigns, SMS gateways, and third‑party chat connectors.

ERP platform with a native CRM; includes email, phone call logging, and integration points for WhatsApp and SMS.

Java‑based CRM offering multi‑channel communication, activity streams, and extensive REST/SOAP APIs for telephony and chat.

Non‑profit oriented CRM that also serves sales teams; provides email, SMS, and social media outreach via extensions.

Low‑code platform with CRM module; includes omnichannel inbox, click‑to‑call, and integration with popular messaging services.

Groupware suite with CRM; features email integration, phone call logging, and a built‑in chat module for sales collaboration.

Open‑source marketing automation that doubles as a CRM; supports email, SMS, social media, and web‑chat campaigns.

Project‑management tool with a CRM add‑on; includes email piping, telephony integration, and live‑chat widgets.

Minimalist PHP CRM focused on lead capture; offers email sync, SMS notifications, and optional chat plug‑ins.

Node.js based CRM with built‑in omnichannel inbox, WhatsApp Business API support, and call‑center integration.

Modern UI version of Vtiger CE; adds native chat, SMS, and social media widgets for sales teams.

Django‑based CRM with multi‑channel outreach; includes email templates, Twilio SMS, and Slack chat integration.

CiviCRM extension pack focused on B2B sales; adds phone call logging, SMS outreach, and social media engagement tools.

Extended Dolibarr distribution with pre‑configured multi‑channel modules (email, SMS, WhatsApp).

Community‑maintained fork adding native chat, WhatsApp, and integrated call‑center dashboards.

Open‑source core with optional cloud‑hosted omnichannel add‑on for email, SMS, and live‑chat.

Help‑desk system repurposed as CRM; includes ticket‑based email, phone, chat, and social channel handling.

Odoo’s sales‑focused modules with built‑in email, phone call logging, and live‑chat widgets.

Axelor CRM extension tuned for sales pipelines; adds multi‑channel inbox, SMS alerts, and social listening.

Latest release with enhanced omnichannel capabilities, including WebRTC‑based click‑to‑call and chat bots.

CRM module with email integration, Twilio SMS, and built‑in live‑chat for real‑time customer engagement.

YetiForce distribution pre‑loaded with WhatsApp Business, Telegram, and SMS gateways for sales outreach.

EspoCRM extension pack delivering email‑to‑lead, click‑to‑call, and multi‑channel chat widgets.