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To-do List

Simple online to-do list with add, check off, edit, and clear. Saves in your browser—no login. Free online tool — no sign-up. Runs locally in your browser.

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How to use

1

Add an item

Type in the field and press Add or Enter—items save locally.

2

Check off tasks

Tick the checkbox when done; edit text inline anytime.

3

Remove or clear

Delete a single row with ✕, or Clear all to start fresh.

To-do list specification

Version 2.0.0 · Runtime tested · Local-first

App status
  • Runtime tested Passed
  • Local-only Verified
  • Server data transfer None
  • App version 2.0.0

Local-first runtime specification · Review policy

Definition
A to-do list stores ordered tasks that can be marked done, edited, or removed.
What it does
Persistent checklist counts (total, done, remaining) from local items.
Inputs
  • New item text + Add / Enter
  • Checkbox done state
  • Inline edit and remove
  • Clear all
Outputs
  • Ordered checklist
  • Counts in status
Rules
done = count(items where done); left = total − done
Assumptions
  • Persistence key is browser localStorage.
  • Empty Add is ignored.
Units
  • Items (unitless)
Limitations
  • Clear all empties storage for this list.
  • Very long text may wrap on small screens.
Example
Add Buy milk → check off → 1 done · 0 left
Validation cases
  • Add then check → done count increases
  • Remove ✕ → Item deleted from storage
Sources
  • Browser localStorage JSON list
App version
2.0.0

About this tool

Details and tips for this tool.

The To-do List keeps a lightweight checklist in your browser. Add with Enter, check items off as you go, edit inline, and clear when finished—controls are at the top so mobile users can act on the first screen.

→ Grocery List › → Online Notepad › → Calendar › → Countdown Timer ›

Frequently asked questions

Key distinctions behind the tool.

Where are tasks stored?

In this browser’s localStorage on your device. Clearing site data removes them.

Can I edit an item after adding it?

Yes. Change the text inline in the list row.

Does it sync across devices?

No. Each browser keeps its own list.

Is my list uploaded?

No. Items never leave your device.