MantisBT vs ClickUp: Which is Better in 2026?
Choosing between MantisBT and ClickUp comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
MantisBT
Open-source issue tracker balancing simplicity and power for effective project collaboration.
Best for you if:
- • You need something completely free
- • You need bug tracking features specifically
- • Open-source issue tracking system.
- • Balances simplicity with powerful features for project management.
ClickUp
Unify tasks, docs, chat, and goals in one workspace
Best for you if:
- • You need project management features specifically
- • All-in-one productivity platform combining project management, docs, chat, time tracking, and AI in a single workspace
- • Free tier with unlimited tasks; Unlimited plan at $7/user/month; Business at $12/user/month (annual billing)
| At a Glance |  MantisBT |  ClickUp |
|---|---|---|
Starts at | Free | $7/member/monthUnlimited |
Best For | Bug Tracking | Project Management |
Rating | - | - |
Choose MantisBT or ClickUp?
Choose MantisBT if
Open-source issue tracker balancing simplicity and power for effective project collaboration.
- Easy and fast to get started
- Powerful yet simple to use
- Highly customizable to fit specific project needs
- You want a fully free tool (ClickUp requires payment)
- Your work is bug tracking-shaped, not project management-shaped
Choose ClickUp if
Unify tasks, docs, chat, and goals in one workspace
- Replaces multiple tools (Asana, Trello, Notion, Toggl) with one platform
- Generous free tier with unlimited tasks and members at no cost
- Highly customizable with custom fields, statuses, views, and automations
- Your work is project management-shaped, not bug tracking-shaped
| Feature | MantisBT | ClickUp |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | ★4.3/5 213 reviews | ★4.5/5 12,000 reviews |
| Categories | Bug TrackingProject Management | Project ManagementProductivity |
In-Depth Analysis
MantisBT
Open-source issue tracker balancing simplicity and power for effective project collaboration.
Strengths
- +Easy and fast to get started
- +Powerful yet simple to use
- +Highly customizable to fit specific project needs
- +Facilitates effective collaboration with team members and clients
- +Open-source, providing flexibility and community support
Weaknesses
- -Requires self-hosting and setup for on-premise use
- -May require technical knowledge for advanced customization or server management
Key features
ClickUp
Unify tasks, docs, chat, and goals in one workspace
Strengths
- +Replaces multiple tools (Asana, Trello, Notion, Toggl) with one platform
- +Generous free tier with unlimited tasks and members at no cost
- +Highly customizable with custom fields, statuses, views, and automations
- +Competitive pricing at $7-12/user/month vs. $10-25 for comparable tools
- +Rapid feature development with frequent product updates
Weaknesses
- -Feature density creates a steep learning curve for new users
- -Performance can lag in large workspaces with thousands of tasks
- -Mobile app is functional but less polished than the desktop experience
- -Frequent UI changes and feature additions can disrupt established workflows
- -AI features (Brain) require a separate add-on starting at $9/user/month
Key features
Pricing: MantisBT vs ClickUp
| Plan | MantisBT | ClickUp |
|---|---|---|
| Tier 1 | Free Open Source | Free Free Forever |
| Tier 2 | N/A | $7 /member/month Unlimited |
| Tier 3 | N/A | $12 /member/month Business |
| Tier 4 | N/A | Custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on MantisBT pricing and ClickUp pricing.
Who Should Use What?
On a budget?
MantisBT is free. ClickUp is freemium.
Go with: MantisBT
Want the highest-rated option?
Neither has user reviews yet.
Go with: MantisBT
Value user reviews?
Neither has user reviews yet.
Go with: ClickUp
3 Questions to Help You Decide
What's your budget?
MantisBT is free. ClickUp is freemium. Go with MantisBT if free matters most.
What's your use case?
MantisBT is a bug tracking tool. ClickUp is in project management. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
ClickUp
- Higher user rating: 4.5/5 vs 4.3/5
- Larger review base (12,000 reviews)
- Free tier available
- Our pick for this comparison
MantisBT
- Completely free
- Better fit for bug tracking
The Bottom Line
ClickUp is our pick. That said, MantisBT is free, hard to beat on price.
Frequently Asked Questions
Is MantisBT or ClickUp better?
ClickUp is rated in our evaluation. MantisBT is free and ClickUp is freemium.
What are MantisBT and ClickUp used for?
MantisBT: Open-source issue tracker balancing simplicity and power for effective project collaboration.. ClickUp: Unify tasks, docs, chat, and goals in one workspace.
What does MantisBT cost vs ClickUp?
MantisBT is completely free. ClickUp is freemium (free tier + paid plans). Visit their websites for detailed pricing.