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.
Bottom line: ClickUp wins this matchup. Jira is our overall Project Management pick. Jira is our free Project Management pick. Pick MantisBT if you need bug tracking.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
MantisBT
Open-source issue tracker balancing simplicity and power for effective project collaboration.
Best for you if:
- • You want a fully free tool (ClickUp requires payment)
ClickUp
Unify tasks, docs, chat, and goals in one workspace
Best for you if:
- • You want replaces multiple tools (Asana, Trello, Notion, Toggl) with one platform
| At a Glance | MantisBT | ClickUp |
|---|---|---|
Starts at | Free 100% free | Free Free plan |
Category | Bug Tracking Project Management | Project Management Productivity |
Rating | 4.4/5 G2 4.0 · SourceForge 5.0 114 reviews | 4.3/5 G2 4.6 · Capterra 4.6 · TrustRadius 4.3 19,870 reviews |
Free plan | Yes | Yes |
Watch out for | n/a | AI Super Credits run out mid-month for heavy users: Brain AI includes 1,500 credits/mo, Everything AI includes 5,000, overages at $0.001/credit add up for teams using AI Fields and Super Agents |
Choose MantisBT or ClickUp?
Choose MantisBT if
- You want a fully free tool (ClickUp requires payment)
- You want easy and fast to get started
- You want powerful yet simple to use
- You work in bug tracking, not project management
Choose ClickUp if
- You want replaces multiple tools (Asana, Trello, Notion, Toggl) with one platform
- You want generous free tier with unlimited tasks and members at no cost
- You work in project management, not bug tracking
In-Depth Analysis
MantisBT
Open-source issue tracker balancing simplicity and power for effective project collaboration.
MantisBT's pricing is exceptionally generous as it is entirely free and open-source.
Strengths
- Pro: Easy and fast to get started
- Pro: Powerful yet simple to use
- Pro: Highly customizable to fit specific project needs
- Pro: Facilitates effective collaboration with team members and clients
- Pro: Open-source, providing flexibility and community support
Weaknesses
- Con: Requires self-hosting and setup for on-premise use
- Con: May require technical knowledge for advanced customization or server management
Key features
ClickUp
Unify tasks, docs, chat, and goals in one workspace
ClickUp is the value leader among mainstream project management tools.
Watch out
AI Super Credits run out mid-month for heavy users: Brain AI includes 1,500 credits/mo, Everything AI includes 5,000, overages at $0.001/credit add up for teams using AI Fields and Super Agents
Strengths
- Pro: Replaces multiple tools (Asana, Trello, Notion, Toggl) with one platform
- Pro: Generous free tier with unlimited tasks and members at no cost
- Pro: Highly customizable with custom fields, statuses, views, and automations
- Pro: Competitive pricing at $7-12/user/month vs. $10-25 for comparable tools
- Pro: Rapid feature development with frequent product updates
Weaknesses
- Con: Feature density creates a steep learning curve for new users
- Con: Performance can lag in large workspaces with thousands of tasks
- Con: Mobile app is functional but less polished than the desktop experience
- Con: Frequent UI changes and feature additions can disrupt established workflows
- Con: 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.
Key Takeaways
ClickUp
- Larger review base (19,870 reviews)
- Free tier available
- Our pick for this comparison
MantisBT
- Completely free
- Higher user rating: 4.4/5 vs 4.3/5
- Better fit for bug tracking
The Bottom Line
ClickUp wins this matchup. Jira is our overall Project Management pick. Jira is our free Project Management pick. That said, MantisBT is free, hard to beat on price.
Frequently Asked Questions
Is MantisBT or ClickUp better in 2026?
ClickUp wins this matchup. Jira is our overall Project Management pick. Jira is our free Project Management pick. Pick MantisBT for bug tracking workflows (main strength: easy and fast to get started). Pick ClickUp for project management workflows (main strength: replaces multiple tools (Asana, Trello, Notion, Toggl) with one platform).
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 free. ClickUp's paid plans start at Free (Unlimited).
What's the main difference between MantisBT and ClickUp?
MantisBT's main strength: easy and fast to get started. ClickUp's main strength: replaces multiple tools (Asana, Trello, Notion, Toggl) with one platform.