Twenty
AI-native open-source CRM — customize objects, workflows, and apps like code.
AGPL-3.0 alternative to Salesforce. GraphQL/REST API, custom objects, MCP server, and Docker self-hosting — from $9/user cloud or free self-hosted.
Krayin
Self-hosted Laravel CRM for leads, pipelines, and customer lifecycle management.
MIT-licensed alternative to Salesforce. Kanban leads, quotes, email sync, and modular extensions — built on Laravel and Vue.js for SMEs and enterprises.
Erxes
Experience Operating System — marketing, sales, ops, and support unified.
AGPL-3.0 XOS platform replacing HubSpot, Zendesk, and more. Plugin-based TypeScript monorepo with Docker self-hosting — free core, enterprise modules available.
EspoCRM
Simple, customizable open-source CRM — self-hosted since 2014.
AGPL-3.0 alternative to Salesforce. Leads, pipeline Kanban, email marketing, customer portal, and Entity Manager customization — Docker or manual install.
Frappe CRM
Fully featured open-source CRM — unlimited users, Frappe-powered.
AGPL-3.0 alternative to HubSpot from the ERPNext team. Lead/deal pipeline, SLA rules, email integration, and Vue.js UI — Frappe Cloud or Docker self-hosting.
Open Mercato
AI-engineering framework for CRM/ERP — start at 80% done.
MIT modular monolith with pre-built CRM, sales, and ERP modules. Architecture-aware AI harness, multi-tenant RBAC, and spec-first development for Cursor/Claude Code.
Relaticle
Self-hosted CRM with 30 MCP tools — built for AI agents.
AGPL-3.0 alternative to HubSpot with native MCP server and REST API. Laravel 12, Filament 5, 22 custom field types, and multi-team isolation.
Atomic CRM
Full-featured CRM in React + Supabase — fork and deploy in minutes.
MIT CRM by Marmelab (React Admin). Contacts, deals Kanban, tasks, email capture — ~15k LOC with shadcn/ui, deploy to Supabase + GitHub Pages.
Compare HubSpot alternatives
| Tool | Stars | Forks | License | Self-hosted |
|---|---|---|---|---|
| Twenty | 48.6K | 6.9K | AGPL-3.0 | Yes |
| Krayin | 22.6K | 1.5K | MIT | Yes |
| Erxes | 4K | 1.3K | AGPL-3.0 | Yes |
| EspoCRM | 3K | 867 | AGPL-3.0 | Yes |
| Frappe CRM | 2.8K | 1.1K | AGPL-3.0 | Yes |
| Open Mercato | 1.3K | 281 | MIT | Yes |
| Relaticle | 1.3K | 148 | AGPL-3.0 | Yes |
| Atomic CRM | 1K | 680 | MIT | Yes |
HubSpot is a proprietary CRM and marketing platform popular with small and mid-sized teams. Its free tier is generous for getting started, but costs rise quickly once you need more contacts, marketing automation, or multiple seats — and your data stays inside HubSpot's hosted platform.
Open-source alternatives let you self-host your CRM and marketing data instead of renting seat-based access. Erxes is closest to HubSpot's all-in-one scope, bundling marketing and support with CRM. Twenty, Krayin, EspoCRM, and Frappe CRM focus on sales pipeline rather than marketing automation.
If marketing automation (email sequences, landing pages) is your main use for HubSpot, check each alternative's feature set carefully before switching.
FAQ
Is there a free, open-source alternative to HubSpot?
Yes. Twenty, Krayin, EspoCRM, and Erxes are all open source and self-hostable at no software cost.
What's the best open-source alternative to HubSpot?
Pick Twenty for the most modern, customizable CRM experience. Pick Erxes if you need marketing and support tools alongside CRM, closer to HubSpot's full suite.
Do open-source HubSpot alternatives include marketing automation?
Only Erxes bundles marketing and support features with CRM. Twenty, Krayin, and EspoCRM focus primarily on sales pipeline, not full marketing automation.
What are the top open-source alternatives to HubSpot?
Browse all open-source alternatives to HubSpot above, or explore the full CRM & Sales category for more options.