Skip to content
OpenSourceSoftware.ai

Business & Commerce

An open-source alternative to Follow Up Boss

Twenty is the one project in our catalog listed as a replacement for Follow Up Boss. It is crm software with 60.2K GitHub stars. Below is how it measures against the questions people usually ask first.

A CRM your stack can evolve with.

Twenty starts with the common records in a CRM but keeps the data model, views, automations, and application layer open to change. Teams can connect mailbox and calendar history to people, companies, and opportunities, add their own objects and fields, build workflows, and integrate through REST, GraphQL, webhooks, or custom apps.

  • Manage people, companies, opportunities, notes, tasks, and custom objects
  • Sync email and calendar activity to the CRM records it concerns
  • Build workflows, APIs, webhooks, views, and custom applications on the data model

What people use it for

Run a configurable sales pipeline

Track people, companies, opportunities, tasks, notes, stages, amounts, and expected close dates, then present the same records in filtered tables or Kanban views.

Keep customer communication beside records

Connect Google or Microsoft mail and calendars so message threads and meetings appear on the related people, companies, and opportunities and can be used by the team.

Automate and extend a custom CRM model

Add fields and objects, trigger workflows from record events, schedules, manual actions, or webhooks, and connect the resulting model through APIs or a custom Twenty app.

60.2K starsAGPL-3.0-onlyTypeScriptLatest release todayWebsite ↗Full profile →

Fact checklist

The same questions the pages with more alternatives let you sort by, answered for Twenty.

Data from GitHub and our catalog. Every listing is hand-approved. List prices are what the vendor publishes, not a quote, and self-hosting has its own running costs.