A task list works when it is effortless: add the task in seconds, see it when you need it, and mark it done with one action. Lists fail when they demand setup, accounts, or learning, so this one deliberately does almost nothing beyond those three jobs.
Your tasks are saved in your browser local storage, so the list is still there when you return on the same device. It is a general task list, distinct from a shopping list, which is why it keeps no quantities or store sections, just tasks and their done state.
Quick Answer: Keep a simple task list with done markers, saved in your browser.
Free Online Tool
To-Do List App
Add a task, then mark the first one done.
How to Use the To-Do List App
- Type the new entry into the form above.
- Press the main button to add it to your list.
- Review your saved entries below the controls.
- Update or remove entries as your day changes.
- Come back any time; your list is kept in this browser.
Key Features
- Runs entirely in your browser, so nothing is uploaded to a server.
- No account, sign-up, or installation is needed to use it.
- Works on desktop and mobile browsers alike.
- Adds tasks to a list in seconds.
- Marks the first task done with one click.
- Saves tasks in browser local storage automatically.
Best Practices and Tips
- Double-check your input before running the tool, since the output is only as good as what you enter.
- Keep a copy of the original input until you have confirmed the result works.
- Write tasks as actions, such as call the bank, not vague topics.
- Keep the list short; move the rest to a someday list.
- Clear done tasks regularly so the list stays readable.
Common Mistakes to Avoid
- Running the tool on incomplete input and trusting the first result without a glance.
- Forgetting to save or copy the output before closing the tab.
- Adding everything at once until the list is overwhelming.
- Writing tasks so vaguely that you cannot tell when they are done.
Frequently Asked Questions
What does the To-Do List App do?
The To-Do List App takes task names and turns it into a saved task list with done markers, right in your browser. You do not need to install anything or create an account, and the result is ready in seconds. It is built for everyday jobs where you want a quick, reliable answer without opening a heavy desktop program or uploading your files anywhere.
Is my input private when I use this tool?
Yes. Everything you type, paste, or upload is processed locally in your own browser tab, so it never travels to a server run by this site. The only exception is a feature that explicitly needs a device, such as a camera or microphone, and even then the media stays on your device. Closing the tab ends the session, and nothing about your input is stored on the site.
What should I do if the result looks wrong?
First, check the input for typos, missing values, or an unsupported format, because most unexpected results come from the input rather than the tool. Try a small, simple example you can verify by hand, then compare it with the tool output. If the simple case works and the real case does not, the difference usually points to the part of the input that needs fixing.
Where are my tasks saved?
In your browser local storage on this device. They are not sent to a server and need no account, so they stay private but do not sync to other devices.
How is this different from a grocery list?
A grocery list is organised by shopping categories and quantities, while this list is for general tasks with a done state. Each tool fits its own job, which keeps both lists simple.
Can I use this tool on a mobile phone?
Yes. The tool is built with the same responsive layout as the rest of the site, so controls, inputs, and results adapt to a phone screen. Buttons are large enough to tap comfortably, text fields accept mobile keyboards, and results wrap instead of overflowing. If a feature needs a device capability, such as a camera, the tool will say so on that device rather than failing silently.
Related Tools
- Habit Tracker – Track daily habits with a simple checklist saved in your browser.
- Expense Tracker – Log spending with totals, saved in your browser, no account needed.
- Online Stopwatch – times events with lap splits and fastest/slowest highlighting
- Grocery List Maker – Shopping list with quantities and categories, stored in browser localStorage (distinct from todo-list-app, which is generic tasks).