Open source alternatives to HubSpot

Modern CRM with a spreadsheet-like data model, custom objects and workflows.

Modular business suite whose community edition includes CRM, sales, invoicing and inventory.

Laravel-based CRM aimed at small businesses, with leads, pipelines and quotes.

Marketing automation platform with campaigns, segments, landing pages and lead scoring.

Lightweight contact and deal tracker built with React and Supabase, meant to be forked and customized.

Web CRM for leads, accounts, opportunities and email, with a customizable entity model.