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Open Source Business & Productivity Tools

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194 projects, sorted by GitHub stars.

DeskcommCRM

Alternative toHubSpot Sales Hub

AI agents for WhatsApp sales, fully audited, no per-user pricing

  • 4,751 GitHub stars
  • MITLicence MIT
  • #CRM

PDFsam Basic

Alternative toAdobe Acrobat

Split, merge, rotate, and extract PDF pages for free

  • 4,632 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

LibreOffice

Alternative toMicrosoft 365

Free office suite with Writer, Calc, and Impress on any platform

  • 4,540 GitHub stars
  • GPL-3.0Licence GPL-3.0

FckSignups

InCustomer Support

Open-source tools that work instantly, no signup required

  • 4,511 GitHub stars
  • GPL-3.0Licence GPL-3.0

OpenPDF

Alternative toiText 7

Free open source Java library for creating and editing PDFs

  • 4,378 GitHub stars

securo

Alternative toMonarch Money

Self-hosted money manager with bank sync and AI agents.

  • 4,073 GitHub stars
  • AGPL-3.0Licence AGPL-3.0

NeoMutt

Alternative toSuperhuman

Open source keyboard-first terminal email client

  • 3,854 GitHub stars
  • GPL-2.0Licence GPL-2.0

crm

Alternative toHubSpot CRM

Self-hostable CRM with unlimited users and Kanban deal tracking

  • 3,837 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #CRM

LimeSurvey

Alternative toSurveyMonkey

Open source survey platform for complex questionnaires

  • 3,769 GitHub stars
  • GPL-2.0Licence GPL-2.0

Brave

Alternative toGoogle Chrome

Block ads and trackers by default in a Chromium-based browser

  • 3,697 GitHub stars
  • MPL-2.0Licence MPL-2.0

EspoCRM

Alternative toSalesforce Sales Cloud

Self-hosted open source CRM for contacts and pipelines

  • 3,503 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #CRM

Atomic Agent

Alternative toGrok Bot

Local-first AI agent that runs on your machine, drives real tools.

  • 3,425 GitHub stars
  • MITLicence MIT
  • #LLM
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