Closest to Keap
Twenty is a CRM for technical teams with a customizable data model and workflows. EspoCRM is a mature CRM with over a decade of development, and Krayin is a Laravel CRM with lead tracking, deal management, and forecasting.
Alternatives / Keap
6 open-source alternatives
6 Best Open Source Keap Alternatives in 2026
Looking for an open source Keap alternative? We compared 6 open source CRMs by license, self-hosting, and maintenance. Twenty is the most modern, EspoCRM is the most mature, and Krayin, Frappe CRM, Erxes, and Warpdrive fill other niches.
Written by Maxime DERAME
Last updated:
Best Keap alternatives at a glance
| Alternative | Best for | License |
|---|---|---|
| Twenty | Modern CRM with workflows and MCP | AGPL-3.0 + commercial files |
| Krayin CRM | Laravel CRM with forecasting | MIT |
| Frappe CRM | CRM with ERPNext integration | AGPL-3.0 |
| Erxes | Marketing, sales, and support suite | AGPL-3.0 + EE |
| EspoCRM | Mature customizable CRM | AGPL-3.0 |
| Warpdrive | Lightweight pipeline CRM (small) | MIT |
How we chose these Keap alternatives
We looked for open-source tools that manage contacts and deals like Keap. We verified each project's license, recent activity, stars, and self-hosting in its repository. None includes Keap's built-in email marketing at the same depth. See our methodology for the full criteria.
Other options
Frappe CRM integrates with ERPNext and WhatsApp with no per-user fees. Erxes is an all-in-one marketing, sales, and support platform, and Warpdrive is a small Pipedrive-style tool that omits invoicing, automation, and web forms.
Important: commercial parts
Twenty has some files under a commercial license, and Erxes has an enterprise directory.
License details
Twenty, Frappe CRM, Erxes, and EspoCRM are AGPL-3.0, with commercial parts in Twenty and Erxes. Krayin and Warpdrive are MIT.
Maintenance status
All six had commits within weeks of this update.
Why look for a Keap alternative?
Keap is a proprietary small-business CRM priced by contacts. Open-source CRMs remove per-contact pricing, but you provide automation and email infrastructure separately.
twenty.com
Twenty is a CRM for technical teams with customizable data models, no-code workflows, and an MCP server, positioned as an alternative to Salesforce and HubSpot. It is mostly AGPL-3.0, with some files under a commercial license. It can be self-hosted or used as a managed cloud.
58.8K9.6KAGPL-3.0 + commercial filesSelf-hosted
Pricing: Free self-hosted; cloud from $9 per user per month.
- Custom data models and no-code workflows
- MCP server and AI support
- Large and active community
- Some files are under a commercial license
- Self-hosting requires maintenance
krayincrm.com
Krayin is an open-source Laravel CRM with lead tracking, deal management, sales forecasting, marketing automation, VoIP and live chat integrations, and analytics, suited to B2B and real estate teams.
24K1.7KMITSelf-hosted
Pricing: Free and open source; paid extensions and support.
- Lead and deal tracking with forecasting
- MIT license
- Laravel stack that is easy to extend
- Fewer modern AI features
- Some extensions are paid
erxes.io
Erxes unifies marketing, sales, and customer service in one platform with a 360-degree customer view, customizable workflows, and automation. The core is AGPL-3.0, enterprise plugins are under a separate license, and hosting it as a competing SaaS is not permitted.
4.1K1.3KAGPL-3.0 + EESelf-hosted
Pricing: Free self-hosted; enterprise features and hosted plans are paid.
- Marketing, sales, and support in one
- Customizable workflows
- Self-hostable
- Enterprise plugins under a separate license
- Hosting it as a competing SaaS is not allowed
frappe.io
Frappe CRM manages contacts, deals, and customer relationships with email and call integration, customizable workflows, automation, reporting, and ERPNext integration, with no per-user pricing.
3.8K1.5KAGPL-3.0Self-hosted
Pricing: Free and open source; Frappe Cloud hosting is paid.
- Simple, modern interface
- Integrates with ERPNext
- Customizable workflows and automation
- Younger than the full ERPNext ecosystem
- AGPL-3.0 license
espocrm.com
EspoCRM manages contacts, companies, projects, and opportunities with sales pipelines, flexible deployment, customizable workflows, and an intuitive interface, either self-hosted or in the cloud.
3.5K1KAGPL-3.0Self-hosted
Pricing: Free self-hosted; paid cloud hosting and extensions.
- Mature and refined
- Flexible deployment and customization
- Active development
- Interface looks more traditional than Attio
- Some extensions are paid
warpdrivecrm.com
Warpdrive is a self-hosted CRM for business development with a drag-and-drop pipeline board, a deal workspace combining activities and communications, contacts and organizations with custom fields, and two-way Gmail. It runs with Docker Compose on Next.js, TypeScript, and PostgreSQL, and deliberately excludes invoicing and workflow automation.
765MITSelf-hosted
Pricing: Free and open source.
- Focused pipeline and deal workspace
- Two-way Gmail with thread linking
- No per-seat fees, full data control
- Very small and new project
- No invoicing or workflow automation
Compare Keap alternatives
| Alternative | Type | License | Self-hosted | Best for |
|---|---|---|---|---|
| Twenty | CRM | AGPL-3.0 + commercial files | Yes | Technical teams |
| Krayin CRM | CRM | MIT | Yes | Laravel users |
| Frappe CRM | CRM | AGPL-3.0 | Yes | Frappe users |
| Erxes | CRM suite | AGPL-3.0 + EE | Yes | All-in-one |
| EspoCRM | CRM | AGPL-3.0 | Yes | General CRM |
| Warpdrive | CRM | MIT | Yes | Small sales teams |
Which one should you choose?
Want the most modern CRM
Twenty has customizable data models, workflows, and an MCP server.
Want a mature option
EspoCRM has over a decade of development and cloud or self-hosted deployment.
Want an all-in-one suite
Erxes combines marketing, sales, and customer service.