todo.txt open standard · Open source · MIT

Manage your tasks.
No cloud. No accounts.

don3txt is an Android task manager based on the open todo.txt format. Plain text, local, no external dependencies. Your data is yours.

MIT
Free license
0
Servers
100%
Local

Everything you need,
nothing you don't

Clean interface built with Material Design 3

Sidebar with views: Inbox, Today, Upcoming, projects and contexts

Navigation

Inbox view with task list, priorities, projects and contexts

Inbox

Settings screen: todo.txt file, theme, first day of week, upcoming days

Settings

Powerful inside,
simple outside

Everything a serious productivity system needs

📋

Standard todo.txt format

Full compatibility with the open standard. Priorities (A)-(Z), projects +name, contexts @name and metadata key:value. Complete or delete tasks with Undo support. Completed tasks are archived to done.txt.

🔄

Recurring tasks

Flexible recurrence with rec:1m (from completion) or strict with rec:+1m (from original date). Supports days, weeks, months and years.

🕐

Threshold date

With t:2024-02-25 the task stays hidden until its time comes. It appears in all views except Upcoming when relevant.

📅

Due dates

Add due:YYYY-MM-DD with the built-in calendar picker. Overdue tasks are visually highlighted in the Today view.

🏷

Visual tag pickers

Tap + or @ in the editor to browse existing projects and contexts as selectable chips. Create new tags on the fly. Works alongside manual typing without duplicates.

📁

Choose your file

Pick any todo.txt from your device. Compatible with Syncthing for cross-device sync without intermediaries. Pull-to-refresh to reload changes from disk.

🌓

Light, dark and system theme

Three theme options applied instantly. System mode follows your Android configuration automatically.

Fully configurable

First day of the week (Monday or Sunday), Upcoming period (3, 7 or 14 days) and file path. All from Settings.

🔒

No external dependencies

No internet required. No account needed. No server. Your tasks live exclusively on your device, in plain text.

Plain text.
Forever.

The todo.txt format is an open, human-readable standard. No proprietary databases, no complicated exports, no vendor lock-in.

A text file you can open with any editor, move between devices, version with git, sync with Syncthing or even edit by hand.

Your tasks will be available on any platform that supports the standard, now and ten years from now.

todo.txt
(A) Call the dentist @phone
(B) 2024-01-15 Review PR +Project @office
(C) Prepare presentation due:2024-02-10
Buy milk @supermarket
Pay rent due:2024-02-01 rec:1m
Review report due:2024-03-01 t:2024-02-25 rec:+1m
x 2024-01-16 2024-01-15 Send contract +Work

Why don3txt

01

Privacy by design

No server receives your tasks. No account to create. No telemetry. Your data never leaves your device unless you choose so.

02

Full interoperability

The todo.txt format has dozens of implementations on iOS, macOS, Linux and Windows. Switch apps whenever you want. Your file always works.

03

Free software

Open source under the MIT license. You can read it, modify it, contribute or fork it. No restrictions, no surprises.

Get started today

Download the APK, pick your todo.txt file and start managing your tasks with no strings attached.

Current version: v1.7.0