Top 20 Alternatives to Crust CRM (Corteza) in Open-source CRM Software

Crust CRM (Corteza) is a modern, low‑code, open‑source CRM platform offering customizable pipelines, automation, and multi‑tenant architecture. Below is a curated list of 20 open‑source CRM solutions you can consider as alternatives.

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Top Competitors to Consider

Feature‑rich fork of SugarCRM Community Edition with sales, marketing, and support modules, plus extensive customization.

#3 EspoCRM

Lightweight, entity‑centric CRM with a clean UI, workflow automation, and a robust API for extensions.

Highly configurable CRM/ERP system built on Vtiger, offering sales, project, and help‑desk modules.

All‑in‑one CRM with sales automation, ticketing, and marketing tools; community‑driven and extensible.

Integrated CRM module within Odoo’s open‑source ERP suite; pipelines, lead scoring, and email integration.

Modular ERP/CRM solution for SMEs; includes contact management, sales pipeline, and invoicing.

#8 CiviCRM

Non‑profit focused CRM for managing contacts, contributions, events, and communications.

#9 ERPNext

Open‑source ERP with a robust CRM module covering leads, opportunities, and customer support.

#10 Zurmo

Gamified CRM built on Yii framework; offers sales automation, activity streams, and customizable dashboards.

Ruby on Rails‑based lightweight CRM with contact, lead, and opportunity management.

#12 X2CRM

Highly extensible CRM with workflow automation, marketing automation, and a drag‑and‑drop form builder.

#13 OpenCRX

Enterprise‑grade CRM written in Java, supporting multi‑tenant deployments and extensive customization.

Part of the Axelor ERP suite; offers lead management, opportunity tracking, and integration with accounting.

#15 Tine 2.0

Groupware suite with a built‑in CRM module for contact, lead, and case management.

#16 SimpleCRM

Minimalist, PHP‑based CRM focused on contact and lead management with a clean UI.

Community‑maintained fork of Vtiger offering core CRM features without the proprietary extensions.

Open‑source help‑desk and CRM platform with ticketing, live chat, and sales pipeline features.

#19 OroCRM

B2B‑focused CRM built on Symfony, offering advanced segmentation, marketing automation, and integration with OroCommerce.

#20 Mautic

Open‑source marketing automation platform with built‑in CRM capabilities such as lead scoring and contact management.

Standalone CRM mode of Dolibarr, focusing purely on sales pipeline, contacts, and activity tracking.