A kanban board is columns, cards, and drag-to-reorder. That's a well-worn UI pattern with mature libraries behind it — the hard part of Trello was never the board, it's the automation rules layered on top, which most people never touch.
VIBE SCORE 95/100
The parts this build actually needs, each rated on its own — the average is the Vibe Score above.
| Landing page | 99 |
| CRUD database | 95 |
| User login | 92 |
Two real costs, not just "free": the AI agent's own usage, and hosting once it's running. Both are estimated from this app's own effort rating and component list — see the assumptions on the method page.
| AI agent — with a subscription (Claude Pro/Max, Cursor, etc.) | $0 marginal |
| AI agent — pay-per-use API, no subscription | $43–$86 one-time |
| Hosting, once it's running | $0/mo (free tier) |
| Domain name, if you want your own | ~$12/yr |
Trello costs $5/mo. Even paying per-token with no subscription, and accounting for hosting, this build pays for itself in about 18 months.
Don't feel like building it? These are already made, open-source, and free.
Build it. A kanban board is columns, cards, and drag-to-reorder. That's a well-worn UI pattern with mature libraries behind it — the hard part of Trello was never the board, it's the automation rules layered on top, which most people never touch.
Trello costs $5/mo (about $60/yr) as of 2026-08. That's what a working rebuild would save you.
Butler-style automation rules ('when a card enters this list, do X') are a small workflow engine, not a weekend add-on Power-Ups (their plugin ecosystem) — you lose every third-party integration your team already uses Real-time sync so two people see the same board update instantly is doable but adds real complexity beyond solo use
Yes — Planka, Focalboard are open-source options worth trying before you build your own. Details are in the standard parts section on this page.
Trello compared directly against the products people actually weigh it up against — same build questions, different answers.
Curated sets Trello appears in.
Closest matches on the register — ranked by the build parts they share with Trello, not just by category.
Browse all productivity tools · every comparison · how scoring works · the full register
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