KanbanThing

A free kanban board you can share with a link. No account, no email, no install.

https://www.kanbanthing.com

You name a board, choose a password, and get a link. Anyone you send that link to opens the same board and moves the same cards. That last part is the point — most free no-signup kanban tools keep the board in one browser's local storage, so it can never really be shared. This one is shared by default.

What it does

Columns you can add, rename and reorder, starting from To Do, In Progress and Done
Cards with a description, a colour and a due date, moved by drag and drop or from the card menu
A backlog for work that is not scheduled yet
A calendar view of the same cards by due date, and a timeline view by most recent activity
A password on every board, set when the board is created, plus a read-only link for people who should see the board but not change it
Light and dark appearance, following your system setting
A command line client with --json on every command, so a script or an AI agent can drive the same board a person has open in a browser — see the CLI docs

What it does not do

There are no accounts, no teams, no permissions and no paid tier. Boards are deleted up to 60 days after they are created, so copy out anything you want to keep.

If you need long-lived project history, this is the wrong tool, and that is on purpose. It suits work with an end in sight: a retrospective, a short project, or a personal board you start again every few weeks.

Guides

Built with

Next.js, React, TypeScript and Tailwind CSS, with Supabase for storage. Made and maintained by Tron Schell.

Running it locally

Requires Node 20 or newer and a Supabase project.

Terminal

npm install
npm run dev

Set NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY in .env.local. The SQL that builds the schema lives in db/, applied in filename order.

Terminal

npm run build       # production build
npm test            # vitest
npm run typecheck   # tsc --noEmit
npm run lint        # eslint