Best Open Source CRM Software 2025

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Browse free open source CRM software and projects below. Use the toggles on the left to filter open source CRM software by OS, license, language, programming language, and project status.

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The database for AI-powered applications.

MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.

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MongoDB Atlas runs apps anywhere
Deploy in 115+ regions with the modern database for every enterprise.

MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.

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1

PHP Address Book

Simple, web-based address & phone book

Simple, web-based address & phone book, contact manager, organizer. Groups, addresses, e-Mails, phone numbers & birthdays. vCards, LDIF, Excel, iPhone, Gmail & Google-Maps supported. PHP / MySQL based.

36 Reviews

Downloads: 11 This Week

Last Update: 2017-10-14
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2

vpnuke

VP Nuke is a framework to build a social network with web recruiting and marketplace services. Originally based on version 6.0 of PHP Nuke.

Downloads: 1 This Week

Last Update: 2014-07-10
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3

Address Book Express - Contact Manager

Easy web based address book and contact manager

Address Book Express is a super simple, intuitive & responsive web-based address book and contact manager written in PHP with MySQL backend featuring groups, addresses, e-Mails, phone numbers, contact photo, birthdays with admin panel and many more.

1 Review

Downloads: 0 This Week

Last Update: 2018-04-15
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4

BusinessWiki

BusinessWiki is a Enterprise level Wiki available on GPL Licence. BusinessWiki bases on MediaWiki Core

2 Reviews

Downloads: 0 This Week

Last Update: 2013-04-26
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Simple, Secure Domain Registration
Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.

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5

Delightful Labor

Non-profit management

(no longer supported) Delightful Labor offers many features to help manage your non-profit, including: - CRM (customer relationship management) to track the constituents, supporters, and businesses - Donation management, including * Accounts and campaigns * Multi-currency support * Honorariums/memorials * Gift Acknowledgement * Soft-cash relationships * In-kind donations - Personalization features - custom tables and fields. - Documents and Images - upload documents and images for clients, sponsors, people and businesses, volunteers, etc. - Silent Auctions / generates pdf bid sheets - Client management - tracks of your current and past clients, manage their status, keep track of sponsor relationships - Sponsorship program management - Supports multiple sponsorship programs - Sponsorship payment management - Multi-currency support - Features to facilitate sponsors/clients communications - Volunteer/event management

3 Reviews

Downloads: 0 This Week

Last Update: 2020-08-23
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