Twenty
CRM & Business AppsModern open-source CRM alternative
Replaces Salesforce, HubSpot
Best API CRM & Business Apps for self-hosting
The 33 best API crm & business apps you can self-host, ranked by community traction.
Odoo Community
CRM & Business AppsModular open-source business management suite
Replaces Salesforce, SAP
ERPNext
CRM & Business AppsOpen-source ERP for growing businesses
Replaces SAP, NetSuite
Monica
CRM & Business AppsPersonal CRM to remember the people you know
Replaces Salesforce, HubSpot
Krayin
CRM & Business AppsFree and open-source Laravel-based CRM
Replaces Salesforce, HubSpot
Snipe-IT
CRM & Business AppsOpen-source IT asset management system
Replaces ServiceNow, Asset Panda
IDURAR ERP CRM
CRM & Business AppsOpen-source ERP and CRM built on the MERN stack
Replaces QuickBooks, Zoho Books
Dolibarr
CRM & Business AppsOpen-source ERP and CRM for small businesses
Replaces SAP, Salesforce
InvenTree
CRM & Business AppsOpen-source inventory and stock management system
Replaces NetSuite, Fishbowl
SuiteCRM
CRM & Business AppsAward-winning open-source CRM application
Replaces Salesforce, HubSpot
Open Source Point of Sale
CRM & Business AppsWeb-based point of sale and inventory management system
Replaces Square, Lightspeed
Bigcapital
CRM & Business AppsOpen-source accounting and financial management
Replaces QuickBooks, Xero
Frappe CRM
CRM & Business AppsSimple, modern open-source CRM
Replaces HubSpot, Salesforce
EspoCRM
CRM & Business AppsFast and lightweight open-source CRM
Replaces Salesforce, HubSpot
InvoicePlane
CRM & Business AppsSelf-hosted invoicing and quote management application
Replaces FreshBooks, QuickBooks
Shelf Asset Management
CRM & Business AppsOpen-source asset and equipment tracking
Replaces Asset Panda, Sortly
pretix
CRM & Business AppsOpen-source ticketing for conferences and events
Replaces Eventbrite, Ticketmaster
metasfresh
CRM & Business AppsOpen-source ERP for small and midsize companies
Replaces SAP, NetSuite
Paymenter
CRM & Business AppsOpen-source billing and client management for hosting
Replaces WHMCS, Blesta
Corteza
CRM & Business AppsLow-code platform with built-in CRM and case management
Replaces Salesforce, Microsoft Power Apps
Part-DB
CRM & Business AppsWeb-based inventory for electronic components
Replaces NetSuite
Atomic CRM
CRM & Business AppsOpen-source CRM built with React and Supabase
Replaces HubSpot, Pipedrive
Crater Cloud OFBiz
CRM & Business AppsApache enterprise resource planning framework
Replaces SAP, Oracle ERP
Axelor
CRM & Business AppsOpen-source ERP, CRM, and BPM platform
Replaces SAP, Odoo
SolidInvoice
CRM & Business AppsSelf-hosted invoicing and quoting for small business
Replaces FreshBooks, Invoice Ninja
OpenBoxes
CRM & Business AppsOpen-source inventory and supply chain management
Replaces SAP, NetSuite
CiviCRM
CRM & Business AppsCRM for nonprofits, NGOs, and advocacy groups
Replaces Salesforce, Blackbaud
frePPLe
CRM & Business AppsOpen-source ERP for accounting, sales and inventory
Replaces SAP, Oracle SCM
OroCRM
CRM & Business AppsOpen-source CRM for B2B sales teams
Replaces Salesforce, HubSpot
iDempiere
CRM & Business AppsCommunity-driven open-source ERP and CRM
Replaces SAP, Oracle ERP
Tracardi
CRM & Business AppsOpen-source customer data platform and engagement
Replaces Segment, HubSpot
Vtiger CRM
CRM & Business AppsOpen-source CRM for sales, marketing, and support
Replaces Salesforce, HubSpot
OpenCRX
CRM & Business AppsEnterprise-class CRM and customer management
Replaces Salesforce, Siebel
No apps match these filters.
Every option here is open-source and self-hostable, tagged API within the crm & business apps category. Compare them on the individual app pages for setup difficulty and resource requirements.