Open source alternatives to HubSpot
5 free tools that do the job of HubSpot, most stars first. All are web apps you can run on your own server.
5 alternatives
Sorted by most stars.-
Twenty
A modern CRM that you can customise and host yourself.
Also an alternative to Salesforce
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Krayin CRM
A CRM built on Laravel for leads, deals and quotes.
Web app
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Mautic
Marketing automation: email campaigns, landing pages and lead scoring.
Also an alternative to Klaviyo
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erxes
A platform that brings marketing, sales and customer support together in one place.
Also an alternative to Intercom
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EspoCRM
A web CRM for contacts, deals and cases that you can self-host.
Web app
More alternatives in CRM and support
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Ask us to add itAbout these numbers. Stars, dates and licenses come from GitHub through ecosyste.ms, collected on 10 Nov 2026; they can lag GitHub by a few days. A project is listed only if it has 300 or more stars, was updated in the last 12 months and states a license. A listing is not an endorsement, and we have not tested these tools on Antideploy yet. Logos belong to their projects and companies and are shown only to say which is which.