5 Free Alternatives to Microsoft Project (That Actually Work in 2026)

Best Overall

1. ClickUp — The Swiss Army Knife (Replaces MS Project + More)

Best for: Teams or solos who need a full project management suite, not just Gantt charts.

ClickUp's free tier is absurdly generous: unlimited tasks, Gantt view, Timeline, dependencies, and critical path. I built a 50-task project plan with dependencies in 20 minutes — faster than I could in MS Project. The interface is modern, and the Gantt chart updates dynamically as you adjust tasks. It also includes built-in time tracking, docs, and goals, which means you can replace 3-4 separate tools.

What I loved: Multiple views on the same project — list, board, calendar, Gantt. I could switch between them without rebuilding anything. Client guest access is free, so stakeholders can see progress without a license.

What I didn't: No MS Project .mpp import. If you're migrating from MS Project with years of legacy files, ClickUp isn't seamless. Also, the learning curve is real — expect to spend a full afternoon configuring your workspace before it feels productive.

Free tier limits: 100 MB storage (tight for file-heavy projects), some advanced views locked to paid plans.

ClickUp is what MS Project would look like if it were built today: fast, collaborative, and not $55/user/month.

2. ProjectLibre — The Closest 1:1 MS Project Replacement

Best for: Users who need full .mpp file compatibility and a familiar interface.

ProjectLibre is open-source and looks almost identical to MS Project 2010. It opens .mpp files natively — I tested it with a complex 200-line project plan from a client, and it rendered perfectly. Gantt, WBS, resource histograms, network diagrams — it's all there.

What I loved: Zero cost. Full MS Project compatibility. Runs on Windows, Mac, Linux. It's the safest migration path off MS Project.

What I didn't: The UI is dated — it looks like 2010 because the codebase hasn't had a modern refresh. No real-time collaboration. It's desktop-only, so no team editing simultaneously.

Verdict: If you have years of .mpp files and just want to stop paying Microsoft, install ProjectLibre. It's not pretty, but it works.

3. GanttProject — Simple, Offline, Free Forever

Best for: Solo planners who want a simple desktop Gantt tool with zero complexity.

GanttProject is a lightweight desktop app (Windows/Mac/Linux) that does one thing well: Gantt charts. I created a project plan with milestones, dependencies, and resource assignments in under 15 minutes. It exports to PNG, PDF, and CSV — useful for sharing snapshots with clients. It also imports/exports MS Project files, though complex formatting sometimes breaks.

What I loved: Extremely fast. No cloud account needed. Open-source and privacy-friendly. Perfect for a freelance architect or engineer who just needs to chart a timeline.

What I didn't: No collaboration whatsoever. No web version. If you need your team to access the plan, you'll have to email .gan files around, which defeats the purpose of real-time project management.

4. Trello + Planyway Power-Up — Visual Kanban Meets Timeline

Best for: Teams already using Trello who need Gantt without switching tools.

Trello's free tier gives you 10 boards. Add the Planyway Power-Up (free for basic features), and you get a Gantt/timeline view of your cards. I connected my existing Trello project board to Planyway and could instantly see deadlines on a timeline. Dragging cards on the timeline updates due dates — the sync is bidirectional.

What I loved: Zero migration if you're already on Trello. The visual Kanban + timeline combination is intuitive for teams that think visually.

What I didn't: The free Planyway tier limits you to one Power-Up per board, and advanced features (resource planning, workload) require a paid plan. Dependencies between cards are limited compared to dedicated Gantt tools.

5. Notion Timeline View — Flexible, But Not a True Gantt

Best for: Notion users who want light project timelines inside their existing workspace.

Notion's Timeline view (available on personal free tier) turns any database into a Gantt-like display. I used it to plan a content calendar with 30 articles, assigning writers and deadlines. It's visually clean and fully customizable. But it's not a true project management tool — there are no baselines, no critical path, no resource leveling.

What I loved: Everything is connected — project tasks link directly to notes, docs, and client databases. No switching between tools. The free tier is genuinely usable for solo work.

What I didn't: Missing core PM features. Timeline view can't track progress against a baseline. Not suitable for complex projects with interdependent tasks.