Best Open Source Alternatives to Close

Twenty is an open-source CRM alternative to Salesforce and Pipedrive that lets teams define custom objects, workflows, and views as TypeScript code.

vs Close: a free, open-source option you fully control, licensed AGPL-3.0.

SuiteCRM is an open-source, self-hosted alternative to Salesforce that delivers complete CRM pipelines, custom modules, and zero per-seat licensing fees.

vs Close: a free, open-source option you fully control, licensed AGPL-3.0.

Frappe CRM is an open-source alternative to HubSpot that eliminates per-seat fees with self-hosted deal pipelines, telephony logs, and ERPNext integration.

vs Close: a free, open-source option you fully control, licensed AGPL-3.0.

Self-hosted CRM alternative to HubSpot. EspoCRM provides custom sales pipelines, contact tracking, and client portals with complete data ownership.

vs Close: a free, open-source option you fully control, licensed AGPL-3.0.

Relaticle is a self-hosted CRM alternative to HubSpot and Attio featuring native Model Context Protocol tools and human-in-the-loop AI write approvals.

vs Close: a free, open-source option you fully control, licensed AGPL-3.0.