Plane
92 · HealthyIssue tracking with cycles, modules and pages, aimed at software teams.
Open source Project management
itsaplan
89 · HealthyIssue tracking and project planning with kanban boards, Gantt charts and AI agents that work alongside the team.
OpenProject
88 · HealthyProject management suite with Gantt charts, agile boards, time tracking and wikis.
Huly
84 · HealthyAll-in-one workspace combining issue tracking, docs, chat and video calls.
Leantime
83 · HealthyGoal-oriented project management designed with neurodivergent users in mind.
Redmine
75 · StableLong-running issue tracker and project manager with Gantt charts, time tracking, wikis and a large plugin ecosystem.
Paca
74 · StableScrum-focused project management with boards and sprints, built for teams that work alongside AI agents.
Kanboard
73 · StableMinimal kanban board focused on simplicity and low resource use.
Kan
73 · StableTrello-style boards with lists, cards, labels, comments and import from Trello.
Super Productivity
71 · StableTo-do list with timeboxing and time tracking that can pull tasks in from Jira, GitHub and GitLab.
Kaneo
71 · StableLightweight project management with boards, lists and timelines, designed to stay simple.
WeKan
70 · StableKanban boards with swimlanes, checklists, due dates and import from Trello.
Vikunja
64 · StableTo-do and project app with list, kanban, Gantt and table views.
Worklenz
49 · CautionProject management with tasks, timelines, workload views, time tracking and client portals.
Focalboard
14 · At riskKanban-style boards for tasks and projects, originally from Mattermost.
Source-available and unverified licenses
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.
Multica
88 · HealthyTask board where people and AI coding agents pick up issues, report progress and work through the same backlog.
Fizzy
84 · HealthyKanban tool from 37signals where cards nobody touches fade away, keeping boards focused on current work.
PLANKA
68 · StableReal-time Kanban boards for teams, with projects, labels, attachments and notifications.
Fizzy
Kanban tool from 37signals where cards nobody touches fade away, keeping boards focused on current work.
Will it still be around?
Healthy
Score 84/100
Can a business use it freely?
Free, no reselling
O'Saasy License · source-available, not open source
Features compared
has,doesn't1 feature
2/3 Trello features free in Fizzy
Trello has every feature Fizzy has on this list.
✕ doesn't have it · ◐ partly · $ higher plan or paid editionBoth have 2
Headline Trello features on the Standard plan, and whether Fizzy has each in its free, self-hosted edition.
| Feature | TrelloStandard plan | Fizzy2 of 3 free |
|---|---|---|
| Trello has, Fizzy doesn't1 | ||
| Custom fields | Included | No |
| Both have2 | ||
| Kanban boards | Included | Yes |
| Comments and mentions | Included | Yes |
Sources
- Trello, checked 2026-10-09: trello.com
- Fizzy, checked 2026-10-09: github.com, fizzy.do
Flat Rate Deploy
A 25-user team on Trello Standard pays about $125 a month. Fizzy on OpenTools costs $15 a month, setup included, so you save $110 a month, about $3,960 over three years.
Monthly cost
- Fizzy on OpenTools
- $15
- Trello
$125
You save each month
$110/mo
88% less than today
Saving from month one
You save
- Over 3 years
- $3,960
- In year one
- $1,320
List price checked 7 Oct 2026 · Source · Disclaimer
Health score: 84/100
Healthy · activity, bus factor and issue responsiveness, from GitHub
Score v2 · How it works
Activity
45% weight100/100
- Last commit yesterday (100/100).
- 4637 commits in the past 12 months (100/100).
- 50+ releases in the past 12 months (100/100).
Bus factor
30% weight76/100
- Top contributor wrote 43% of the last 83 commits (past 12 months).
- 9 people authored those commits.
Responsiveness
25% weight66/100
- 44% of all issues are closed (10 open, 8 closed) (24/100).
- 15 of 16 recent issues got a reply or were closed (94/100).
License
Free, no reselling
O'Saasy License · Source-available, not open source
What you need to do
Free to self-host and use in your business, changes included. You may not sell it or offer it to others as a hosted service that competes with the vendor.
For Fizzy
MIT-style permissions, except you may not offer it to others as a hosted or SaaS product that competes with 37signals.
O'Saasy License · Source-available, not open source. The code is public, but the license restricts how you can use it, usually by banning competing hosted services or capping production use. Not open source.
License text checked 2026-10-09 · Read it
GitHub activity
- Stars
- 8.2k
- Forks
- 1.2k
- Commits, 12 mo
- 4.6k
- last yesterday
- Releases, 12 mo
- 50+
- last 2 days ago
- Contributors
- 102
- 9 in last 83 commits
- Open issues
- 10
- 8 closed
Snapshot from 2026-10-09
Top contributors
Points for pull requests merged into Fizzy and reviews of them since 5 April 2026 (older history is still loading). Building something another user asked for earns more. 17 people have points on Fizzy in all.
