CHKT — A stupidly simple todo list

Why

Todo apps got complicated. This one didn't.

CHKT is a small, self-hosted todo list. Every task needs a due date, so the list always sorts itself soonest-first — no manual prioritizing, no separate "important" flag to remember to set.

There's no account system, no subscription, and no third-party server holding your data. It's one container, one JSON file, and a page that works the same on your phone and your laptop.

What you get

Everything it does. Nothing it doesn't.

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Self-hosted

Runs in one Docker container. Your tasks live on your own disk, not someone else's server.

↻

Cross-device sync

Add a task on your phone, see it on your laptop — no refresh needed.

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Dark mode

Your task list shouldn't blind you at midnight.

▤

Installable PWA

Add it to your home screen. Use it like a native app.

⇅

Import / export

Your tasks as plain JSON. Always yours to take.

MIT licensed

Read it, change it, self-host it. No strings attached.

Get started

Running in about two minutes.

CHKT ships as a Docker image. Point it at a folder on disk and it takes care of the rest.

# docker-compose.yml
services:
  chkt:
    image: ghcr.io/fosscharlie/chkt:latest
    container_name: chkt
    restart: unless-stopped
    ports:
      - "4080:3000"
    volumes:
      - /opt/chkt:/data

Create the data folder — sudo mkdir -p /opt/chkt
Start the container — docker compose up -d
Open it — visit http://your-server:4080 and add your first task