Plane
92 · HealthyIssue tracking with cycles, modules and pages, aimed at software teams.
Issue tracking with cycles, modules and pages, aimed at software teams.
Issue tracking and project planning with kanban boards, Gantt charts and AI agents that work alongside the team.
Project management suite with Gantt charts, agile boards, time tracking and wikis.
All-in-one workspace combining issue tracking, docs, chat and video calls.
Goal-oriented project management designed with neurodivergent users in mind.
Long-running issue tracker and project manager with Gantt charts, time tracking, wikis and a large plugin ecosystem.
Scrum-focused project management with boards and sprints, built for teams that work alongside AI agents.
Minimal kanban board focused on simplicity and low resource use.
Trello-style boards with lists, cards, labels, comments and import from Trello.
To-do list with timeboxing and time tracking that can pull tasks in from Jira, GitHub and GitLab.
Lightweight project management with boards, lists and timelines, designed to stay simple.
Kanban boards with swimlanes, checklists, due dates and import from Trello.
To-do and project app with list, kanban, Gantt and table views.
Project management with tasks, timelines, workload views, time tracking and client portals.
Kanban-style boards for tasks and projects, originally from Mattermost.
The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.
Task board where people and AI coding agents pick up issues, report progress and work through the same backlog.
Kanban tool from 37signals where cards nobody touches fade away, keeping boards focused on current work.
Real-time Kanban boards for teams, with projects, labels, attachments and notifications.
Scrum-focused project management with boards and sprints, built for teams that work alongside AI agents.
Alternative to
Will it still be around?
Stable
Score 74/100
Can a business use it freely?
Free to use
Apache-2.0 · open source (permissive)

has,doesn't
6/6 Jira features free in Paca
3/3 Trello features free in Paca
Paca has every feature Jira has on this list.
Jira has every feature Paca has on this list.
Paca has every feature Trello has on this list.
Trello has every feature Paca has on this list.
Headline Jira features on the Standard plan, and whether Paca has each in its free, self-hosted edition.
| Feature | JiraStandard plan | Paca6 of 6 free |
|---|---|---|
| Both have6 | ||
| Issue tracking with custom workflows | Included | Yes |
| Scrum boards and sprints | Included | Yes |
| Kanban boards | Included | YesScrumban board |
| Backlog | Included | Yes |
| Custom fields and issue types | Included | Yes |
| Automation rules | IncludedMonthly run limit | Yes |
Sources
Headline Trello features on the Standard plan, and whether Paca has each in its free, self-hosted edition.
| Feature | TrelloStandard plan | Paca3 of 3 free |
|---|---|---|
| Both have3 | ||
| Kanban boards | Included | YesScrumban board |
| Custom fields | Included | Yes |
| Automation rules | Included1,000 runs a month | YesWorkflow automations |
Sources
A 25-user team on ClickUp Business pays about $300 a month. Paca on OpenTools costs $39 a month, setup included, so you save $261 a month, about $9,396 over three years.
Monthly cost
You save each month
$261/mo
87% less than today
Saving from month one
You save
List price checked 8 Oct 2026 · Source · Disclaimer
Stable · activity, bus factor and issue responsiveness, from GitHub
Score v2 · How it works
100/100
12/100
100/100
Free to use
Apache-2.0 · Open source (permissive)
What you need to do
Use, change, host and sell it for any purpose, commercial included, with no license to buy. Keep the copyright notice.
Apache License 2.0 · Open source (permissive). OSI-approved license with few conditions beyond keeping the copyright notice.
Detected by GitHub as Apache-2.0.
Snapshot from 2026-10-08 · Funding: github
Points for pull requests merged into Paca and reviews of them since 10 October 2025. Building something another user asked for earns more. 15 people have points on Paca in all.