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About

KairoProject is a multi-project portfolio management platform built natively on Critical Chain Project Management (CCPM) and Theory of Constraints. If your teams are drowning in conflicting deadlines, hidden resource overload, and planning tools that track tasks but never tell you what's actually at risk, KairoProject was built for that problem. Instead of bolting buffers onto a generic Gantt chart, the engine is CCPM from the ground up: critical chain calculation, project and feeding buffers, fever charts, and real-time buffer consumption tracking — all deterministic and rule-based, so your numbers are always trustworthy. An AI layer sits on top to help you interpret signals, not to second-guess the math. See exactly which resources are overloaded across your entire portfolio, which tasks are truly on the critical chain, and which projects need attention today — not after the deadline slips. REST API, MCP connector, and HMAC-signed webhooks let you plug it into your existing stack.

About

ProjectLibre, available for Desktop and Cloud, is an enterprise project management platform that combines professional scheduling, portfolio management, collaboration, risk analysis, and AI-assisted planning. The cloud platform can import Microsoft Project files, including .MPP and .XML schedules, so organizations can continue working without rebuilding existing project plans. Its scheduling capabilities include Gantt charts, critical path analysis, dependencies, calendars, baselines, milestones, resource leveling, and EVM. ProjectLibre AI can create work breakdown structures, tasks, dependencies, resources, durations, and milestones from natural-language project descriptions. ProjectLibre Desktop is the #1 open-source alternative to Microsoft Project — 8.7M+ downloads, 193+ countries, translated into 31 languages, used at 1,700+ universities. ProjectLibre Cloud is our SaaS / AI team platform and a strong replacement path as Microsoft Project Online retires Sept 30, 2026.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

KairoProject is designed for operations directors, project managers, and portfolio managers who oversee multiple simultaneous projects with shared teams and limited resources. It is particularly suited for engineering firms, technical consultancies, R&D departments, and project-driven SMEs running between 3 and 20 concurrent projects. It is not a task management tool — it is built for organizations where cross-project resource conflicts, late deliveries, and prioritization decisions are daily challenges.

Audience

Users interested in a powerful open source alternative to Microsoft Project

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

10€/month/user
Free Version
Free Trial

Pricing

Free
ProjectLibre Desktop is free and open source software. ProjectLibre Cloud is a team solution with AI and users around the world on a small subscription.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • ProjectLibre is the #1 replacement of Microsoft Project. Open existing MS Project files. Gantt Chart, Network Diagram, earned value cost , performance management and is available on Linux, macOS and Windows. There are 7,600,000 downloads in 193 countries. It is clearly the best project management software and is free.

Cons

  • N/A.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

KairoProject
Founded: 2025
France
www.kairoproject.com

Company Information

ProjectLibre
Founded: 2012
United States
sourceforge.net/projects/projectlibre/

Alternatives

Kairos Software

Kairos Software

Kairos Software Solutions

Alternatives

Concerto PPM

Concerto PPM

Realization
Rillsoft Cloud

Rillsoft Cloud

Rillsoft
NeoOffice

NeoOffice

Planamesa

Categories

Categories

Project Management Features

Agile Methodologies
Budget Management
Client Portal
Collaboration Tools
Cost-to-Completion Tracking
Customizable Templates
Gantt Charts
Idea Management
Kanban Board
Milestone Tracking
Portfolio Management
Resource Management
Time & Expense Tracking
Traditional Methodologies

Project Management Features

Agile Methodologies
Budget Management
Client Portal
Collaboration Tools
Cost-to-Completion Tracking
Customizable Templates
Gantt Charts
Idea Management
Kanban Board
Milestone Tracking
Portfolio Management
Resource Management
Time & Expense Tracking
Traditional Methodologies

Integrations

ChatGPT
Claude

Integrations

ChatGPT
Claude
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