So many power users try dozens of complicated todo list software applications, only to go right back to their trusty todo.txt file. It's simple, straightforward, and readable by every text editor ever made.
But it's not as easy as it should be to open todo.txt, make a change, and save it—especially on your touchscreen device and at the command line. Todo.txt apps solve that problem.
You're not going to find many checkboxes, drop-downs, reminders, or date pickers here.
Todo.txt apps are minimal, todo.txt-focused editors which help you manage your plain text todo list with as few keystrokes and taps possible.

Your todo.txt file isn't useful if it's not always at your fingertips. The Todo.txt mobile apps make it easy to view and update your todo list on the go.
Currently connected to Dropbox, Todo.txt Touch helps you manage your todo.txt on your touchscreen mobile device and automatically syncs your changes to all your devices.
Get Todo.txt Touch in the App Store.
Get Todo.txt Touch on Google Play or in the Amazon Appstore.
Todo.txt Touch is proudly open source. Browse the source code for iOS and Android.
With a simple but powerful shell script called todo.sh, you can interact with todo.txt at the command line for quick and easy, Unix-y access.
The Todo.txt CLI supports archiving completed tasks to done.txt and priority/context tab autocompletion.
Find out more:
Countless productivity apps and sites store your tasks in their own proprietary database and file format. But you can open a todo.txt file with every text editor under the sun, regardless of operating system or vendor.
A todo.txt file future-proofs your task list and stores it in a text file YOU control. It isn't dependent on any software or platform to be useful.
The todo.txt format is a simple set of rules that make todo.txt both human and machine-readable. The todo.txt format supports priorities, creation and completion dates, projects and contexts. That's all you need to be productive.
These apps are built and maintained by Todo.txt users just like you. We believe in the power of portable file formats, data ownership, and getting things done in plain text.
Got a question about Todo.txt?
In addition to the official Todo.txt apps, community members have built more apps and add-ons that work with Todo.txt.
Todo.txt for Windows Phone 7 is a task manager based on the todo.txt file format, by E.Z. Hart.
A webOS application for managing your todo.txt file written using the EnyoJS framework, by thrrgilag.
A minimalist, keyboard-driven Windows GUI for your todo.txt file, by Ben Hughes.
A collection of add-ons, custom actions, and filters that enhance the Todo.txt CLI script, authored by community members.
HTML5 task manager, built on todo.txt, by Davis W. Frank.
A beautiful todo.txt web template engine.