Todo List
Write down what needs doing, check it off, and keep the list in a file that is yours — no account, no sync, no nagging.
No signup, no install, nothing to cancel.
This is the real app, running on sample data — click around. Nothing here is saved, so open it in the full Web Preview when you want to keep what you make.
Why everyday users pick Capsule
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One portable file
The app, your data, and everything it needs live in a single .capsule file you can move, copy, or back up like a photo.
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100% private
No accounts, no cloud, no tracking, no ads. Nothing you write leaves your device unless you send the file yourself.
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Shareable anywhere
Send it over AirDrop, WhatsApp, or email. Whoever gets it can open it in a browser — no install, no signup.
What makes this Todo List worth using
Fast and distraction-free
Add a task, check it off, filter to what is still active. No onboarding tour, no upsell, no notification badges.
No subscriptions or signups
Nothing expires and nothing is gated. The list you make today opens the same way in five years.
AI task breakdown
"Plan a team offsite" is not a task. Ask the built-in assistant to break a big one into steps you can actually start.
Never lose your tasks
Every change is written to your local file as you go — no save button to forget, no tab to lose.
How it works
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Open it
Try it in your browser right here, or get the desktop app for macOS, Windows, or Linux.
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Make it yours
Add your own content. Everything saves into one file on your own device as you go.
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Keep or share it
Store the file wherever you like, back it up by copying it, or send it to someone the way you would send a document.
Frequently asked questions
Can I keep separate lists for work and home?
Yes — make a file for each. A checklist is a document here, so having several is as simple as having several documents.
Are there due dates and reminders?
The template tracks tasks and completion, not scheduled notifications: nothing runs in the background when the file is closed. For dates, add them to the task text.
Do I need to create an account?
No. There are no accounts, no passwords, and no signups. Open the template and start using it.
Where is my data saved?
On your own device, inside a single .capsule file you choose the location of — the same way a photo or a spreadsheet is saved. Nothing is uploaded.
Can my friends open the file if they don't have the app?
Yes. Send them the file and they can open it in the free Capsule Web Preview in any browser, with no install and no account.
Does it cost anything?
No. Capsule and every template are free, with no subscription, no ads, and no paid tier holding features back.
Does it work offline?
Always. The app, its data, and its interface all live in the one file, so nothing needs a connection — on a plane, in a basement, or with your Wi-Fi off.
Explore the other templates
Start with Project Checklist.capsule
Open it in your browser now, or install Capsule to keep files on your own machine and share them like any other document.