Open source alternatives to HubSpot

By GitHub stars it is Twenty, with 60,898 stars and a commit on 13 Nov. Choose Twenty when you want your CRM data on your own server and a data model you can change field by field. Next come Odoo (55,775 stars) and Krayin CRM (24,150 stars).

Yes. The code of all 7 is public under AGPL 3.0, LGPL 3.0, MIT or GPL 3.0 or later, so you can use them with no licence fee. Running one yourself costs the server and your time to look after it, and some makers also sell a hosted plan.

Start from the job you use HubSpot for. Choose Odoo when you want the CRM tied to invoicing, inventory and projects in one system, with a free one-app plan. Choose Mautic when you want campaign journeys, landing pages and lead scoring on your own server, without per-seat and tier prices.

All 7: Twenty, Odoo, Krayin CRM, Mautic, Frappe CRM, Relaticle and Atomic CRM. Each tool's page says what it needs to run.

All 7 we track had a commit in the last 30 days, among them Twenty, Odoo, Krayin CRM and Mautic. A recent commit shows the project is kept up, not that it will stay that way.

AGPL 3.0 (3), MIT (2), LGPL 3.0 (1), GPL 3.0 or later (1). MIT, BSD and Apache let you change and reuse the code freely. GPL and AGPL ask you to share your changes under the same licence when you give the software to others, and AGPL also counts letting people use it over a network.

The hosting. HubSpot's maker runs the servers for you; with an open source tool the updates, backups, security fixes and support are yours, unless you take the maker's hosted plan. Features differ too, so check what each one imports and exports before you move your data.