Todo.

Choose a section

Tap a tab. The + beside the tabs adds a section, up to ten. Use Rename to change its name. Private, Family, and Other cannot be deleted.

Add a todo

Type in “What needs doing?” and tap + Add todo. New todos appear at the bottom. Each section holds ten todos, with titles up to 40 characters.

Add and fold subtasks

Tap + on a todo to add up to five subtasks. The arrow hides or shows them; its count shows how many are done.

Finish a todo

Tick every subtask first, then tick the todo. Adding or reopening an unfinished subtask reopens its parent.

Edit, color, or delete

Tap ⋯ on an item. A todo’s Background color also colors its subtasks. New todos receive a random color.

Share and sync

Choose a tab and tap Share or Sync this tab. On the other device, open Todo → Sync this tab → Scan QR. Scan the code, read a QR image, or paste a text code; review and merge. Then scan the receiving device’s QR back to bring both copies up to date. Only that section is included.

Keep a backup

Download backup saves all sections. Restore backup replaces this browser’s lists. Clearing browser storage removes your lists. Open Todo online once to use it offline.

Anyone with a section’s QR can read its tasks; “Private” is a name, not a password. If the QR fills up, shorten titles or move tasks to a new section.

Update Todo on both devices before syncing new codes. This version creates compact EA2 codes and can still read older EA1 codes. The space meter measures QR capacity; longer titles and deletion history also use space.