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The Best Open-Source Alternatives to ManageEngine ServiceDesk Plus

Are you looking for a free or self-hosted alternative to ManageEngine ServiceDesk Plus? In 2026, avoiding expensive proprietary software subscriptions is easier than ever. The open-source community has built excellent privacy-friendly tools within the IT Service Management ecosystem. Currently, there are 8 active replacements available, with OpenProject being one of the most prominent selections.

Quick Comparison: ManageEngine ServiceDesk Plus vs. Open Source

Full comparison: ManageEngine ServiceDesk Plus vs. OpenProject →
CriteriaManageEngine ServiceDesk PlusOSS Replacements
Pricing modelPaid / Monthly Fees100% Free / Self-Hosted
Data ControlThird-party ServersFull Ownership & Privacy
CustomizabilityRestricted by VendorUnlimited (Modify Codebase)

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OpenProject

šŸ“ˆ Trending⭐ 10k+ Stars
GPL-3.0

OpenProject is a comprehensive, enterprise-grade project management and collaboration platform that enables teams to streamline workflows, track issues, and manage resources in a secure, scalable, and customizable environment. As a privacy-friendly, open-source alternative to ManageEngine ServiceDesk Plus, OpenProject offers greater flexibility, transparency, and control over user data.

⭐ 15,735 Stars
šŸ“ 3,398 Forks
ā— 0 Open Issues
šŸ·ļø GPL-3.0
GPL-3.0

GLPI is a robust, web-based IT asset management and service desk solution that streamlines IT operations, enabling users to monitor assets, create service requests, and track incidents while maintaining complete control over their data and adhering to strict data protection regulations. A privacy-friendly alternative to ManageEngine ServiceDesk Plus, GLPI offers a flexible, modular architecture and granular access controls, empowering organizations to centralize IT management and data security in a single, user-friendly platform.

⭐ 6,178 Stars
šŸ“ 1,757 Forks
ā— 0 Open Issues
šŸ·ļø GPL-3.0
NOASSERTION

Redmine is a powerful, open-source project management and issue tracking tool that enables teams to collaborate seamlessly on projects, track tasks, and manage workflows in a privacy-friendly environment, free from the constraints of proprietary software. As an excellent alternative to ManageEngine ServiceDesk Plus, Redmine offers unparalleled flexibility, customization, and data ownership, allowing organizations to manage their projects and customer support tickets without compromising on data security or control.

⭐ 6,010 Stars
šŸ“ 2,454 Forks
ā— 0 Open Issues
šŸ·ļø NOASSERTION
NOASSERTION

LibreNMS is a powerful, open-source network monitoring and infrastructure management tool that allows organizations to track and manage their IT assets in real-time, providing a scalable and customizable alternative to proprietary solutions. As a self-hosted option, LibreNMS offers enhanced data security and control, making it an attractive choice for businesses seeking a privacy-friendly alternative to solutions like ManageEngine ServiceDesk Plus.

⭐ 4,814 Stars
šŸ“ 2,743 Forks
ā— 0 Open Issues
šŸ·ļø NOASSERTION
Open Source

MantisBT is a robust, open-source issue tracking and project management software that provides a scalable and customizable platform for teams to collaborate on software development, quality assurance, and customer support. As a privacy-friendly alternative to ManageEngine ServiceDesk Plus, MantisBT offers a secure, cost-effective solution that empowers users to manage their issues and workflows without sacrificing control over sensitive data.

⭐ 1,794 Stars
šŸ“ 763 Forks
ā— 0 Open Issues
šŸ·ļø Open Source
AGPL-3.0

iTop is a free, open-source IT service management (ITSM) platform that enables organizations to track and manage IT service requests, incidents, and assets in a centralized and customizable manner, while maintaining complete control over data ownership and security. As a self-hosted, privacy-friendly alternative to commercial solutions like ManageEngine ServiceDesk Plus, iTop offers unparalleled flexibility, scalability, and cost savings for IT teams and organizations of all sizes.

⭐ 1,159 Stars
šŸ“ 291 Forks
ā— 0 Open Issues
šŸ·ļø AGPL-3.0
GPL-2.0

RT is a robust and secure, open-source issue tracking system that enables organizations to manage and track requests, incidents, and problems, while ensuring strict control over data ownership and security. As a highly customizable alternative to proprietary solutions like ManageEngine ServiceDesk Plus, RT empowers businesses to maintain complete ownership and control over their sensitive data, making it an ideal choice for organizations prioritizing privacy and scalability.

⭐ 1,138 Stars
šŸ“ 290 Forks
ā— 0 Open Issues
šŸ·ļø GPL-2.0
Open Source

FusionInventory is an open-source IT asset management and inventory system that empowers organizations to track, monitor, and report on their hardware, software, and network assets in a scalable, customizable, and secure manner, serving as a compelling alternative to proprietary solutions like ManageEngine ServiceDesk Plus. Its free, community-driven model ensures maximum data ownership and control, eliminating vendor lock-in and associated privacy risks.

⭐ 15 Stars
šŸ“ 0 Forks
ā— 0 Open Issues
šŸ·ļø Open Source

Frequently Asked Questions

What is the best open source alternative to ManageEngine ServiceDesk Plus?

Based on GitHub community data (including star count and fork activity), OpenProject stands out as one of the most reliable open-source replacements for ManageEngine ServiceDesk Plus today.

Why should I use an open-source replacement instead of ManageEngine ServiceDesk Plus?

Switching to an open-source solution ensures complete data sovereignty, protects your software environment from sudden vendor price hikes, and gives you full transparent control over your tech-stack metadata.