Top 20 Alternatives to DaybydayCRM in Open-source CRM Software

A fully‑featured fork of SugarCRM Community Edition with sales, marketing, and support modules; highly customizable via modules and Studio.

Part of the Odoo ERP suite; offers lead management, pipeline visualization, and integration with accounting, inventory, and marketing tools.

Lightweight, entity‑centric CRM that supports sales automation, reporting, and a REST API; available in a free open‑source edition.

Feature‑rich CRM built on Vtiger, offering advanced workflow, AI‑based suggestions, and multi‑company support.

Classic open‑source CRM with sales, help‑desk, and marketing automation; extensible through modules and a marketplace.

Non‑profit‑focused CRM that manages contacts, contributions, events, and memberships; integrates with Drupal, Joomla, and WordPress.

All‑in‑one ERP and CRM solution for small‑to‑mid‑size businesses; includes invoicing, project management, and a modular architecture.

Gamified open‑source CRM that emphasizes user engagement, with lead management, activity streams, and a flexible workflow engine.

A Ruby on Rails‑based lightweight CRM offering contact, lead, and opportunity tracking with a clean UI.

Enterprise‑grade CRM with marketing automation, sales pipeline, and a powerful workflow designer.

Modern low‑code CRM built on the Corteza platform; provides customizable objects, automation, and a REST API.

Open‑source CRM focused on e‑commerce and B2B sales, featuring customer segmentation, workflow automation, and analytics.

Java‑based CRM with a rich data model, supporting sales, service, and marketing processes; runs on any J2EE server.

A modular PHP CRM offering lead management, email integration, and a drag‑and‑drop workflow builder.

Groupware suite that includes a fully functional CRM module, calendar, and project management; built on PHP/Zend.

Part of the Axelor ERP platform; provides contact, opportunity, and activity management with a low‑code UI designer.

Open‑source marketing automation platform with built‑in lead management and CRM‑like features such as scoring and segmentation.

Comprehensive ERP that includes a CRM module for lead capture, pipeline tracking, and integration with sales orders and invoices.

Groupware suite offering a CRM component, task management, and calendar; suitable for small teams needing collaboration tools.

Minimalist PHP CRM focused on ease of use; provides contact, deal, and activity tracking with a clean UI.