3 Open Source Alternatives to Attio

A list of 3 carefully selected open-source alternatives to Attio.

Adrian
Created by
Adrian
Mar 9, 2025Updated4 min read

The open-source alternatives are ranked based on our custom ranking system and score. This system takes into account various factors to determine the best alternatives.

If you’re looking for alternative features or workflows, here is a prepared detailed list of Attio open-source alternatives — each with its own distinctive strengths and key features.

#1
Odoo logo

Odoo

41,151
26,715

Odoo is a comprehensive suite of open source business applications designed to streamline operations. It integrates modules such as accounting, CRM, inventory, HR, and more, helping companies optimize workflows and grow efficiently.

Odoo screenshot

Key Features

  • Comprehensive integration of diverse business functions
  • Modular, customizable apps with over 40k community offerings
  • Choice between free Community and premium Enterprise editions
  • High-performance UI with smart AI and reduced data entry
  • Transparent, all-inclusive pricing with no hidden costs

Leverage a fully integrated platform that unites every aspect of your business. Odoo brings together tools for accounting, CRM, project management, e-commerce, and manufacturing within one unified system. With over 40k community apps and the option between a free Community edition and a premium Enterprise edition, customization and scalability are at your fingertips. Enjoy a fast, efficient UI, reduced data entry, smart AI integration, and fair, all-inclusive pricing starting at US$24.90 per month.

#2
Twenty logo

Twenty

26,962
2,874

Twenty is an open-source CRM providing a modern, community-powered alternative to traditional platforms like Salesforce. It empowers businesses with customizable workflows, robust APIs, and an intuitive interface, making customer relationship management accessible and flexible.

Twenty screenshot

Key Features

  • GPL-licensed open source software that you own
  • Customizable objects and fields to tailor data models
  • Powerful GraphQL and REST APIs for seamless integrations
  • Built-in email integration and workflow management
  • Active community support and an open roadmap
  • Affordable Early Adopter pricing with priority support

Twenty is a fully open source CRM designed to manage customer data with a suite of tools including custom objects, integrated email synchronization, and advanced GraphQL and REST APIs. Backed by Y Combinator and a global developer community, the platform adapts to unique workflows and evolving business needs while offering both cloud and self-hosted options.

#3
ERPNext logo

ERPNext

23,948
7,929

ERPNext is a free and open source enterprise resource planning solution that integrates all essential business functions into one platform. It offers a comprehensive suite of modules including accounting, sales, CRM, manufacturing, and more, making enterprise management straightforward and scalable.

ERPNext screenshot

Key Features

  • 100% open source with no hidden features
  • Comprehensive modules covering all business operations
  • No-code/low-code customization and flexible workflows
  • API-first design for seamless integrations
  • Mobile-friendly interface and global compliance support
  • Lower total cost with transparent, compute-based hosting pricing

ERPNext streamlines business operations by providing a modern, unified platform to manage accounting, procurement, inventory, manufacturing, projects, POS, HR, payroll, and additional processes. Its built-in no-code/low-code tools, mobile-friendly interface, and API-first design enable quick customization and seamless integration with existing systems while ensuring global compliance with multi-currency and multi-subsidiary support.

Price comparison of Attio open-source alternatives

ToolTier 1Details
Odoo logo
Odoo
$24.9
Enterprise Edition Pricing
Learn more
Twenty logo
Twenty
$9
Early Adopter
Learn more
ERPNext logo
ERPNext
-
Frappe Cloud Hosting
Learn more

* Pricing shown is based on publicly available information and may not reflect current rates. Visit each tool's website for detailed pricing information and additional tiers.

About Attio

Attio is a groundbreaking brand that is revolutionizing the world of CRM. They offer a radically new type of CRM that is real-time, fully customizable, and intuitively collaborative. With Attio, businesses have the power to create, build, and deploy their CRM exactly as they want it. While other software systems like Notion, Figma, and Slack have transformed how we organize, design, and communicate, the CRM industry has remained relatively stagnant. Attio is here to change that. Founded in 2019, Attio is building a game-changing CRM that is built on real-time data and designed for the speed, scale, and capabilities that modern businesses require. Attio is proud to be backed by some of the world's best tech investors, demonstrating their credibility and industry expertise. They offer a range of products and services including a Chrome extension, iOS and Android apps, and integrations with Zapier and Integromat. With Attio, businesses can finally experience a CRM that truly meets their needs and propels them toward success. Join the revolution and start building your CRM for free with Attio.
This comparison data was compiled with AI assistance.
Attio logo

Attio

Founded in 2019, Attio is building a radically new type of CRM – built on real-time data, completely customizable and intuitively collaborative. Using Attio, businesses have the ability to create, build and deploy their CRM exactly as they want it.

Founded

2019

Employees

11

Location

London, United Kingdom

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