One Thing
The to-do list that tells you what to do now. An ADHD-friendly task app that always shows the one thing to do now. Built for ADHD brains, busy weeks, and the AI agents that help you get through them. Your tasks are plain markdown files in a folder you own.
One Thing isn't in the stores yet. These buttons switch on the day it launches.

What it does
- 01
One focus, not fifty
A big card says what to do now. The rest of the list waits its turn.
- 02
Later means later
Snooze a task to a time, or until another task is done. It comes back with a reminder.
- 03
Big things get small
Break a task into steps that unlock one at a time.
- 04
Focus and time, built in
A focus timer with full-screen breaks, per-task timers and reports.
- 05
Plan for the energy you have
Mark how much energy a task takes and see the total for your day.
- 06
Your AI agent's favorite to-do list
Works with Claude, Copilot, ChatGPT and VS Code through an MCP server, a CLI or a skill.
- 07
Your tasks are your files
Plain markdown that works with Obsidian. No account, no cloud, no telemetry.
A closer look




The details
- Works on
- Windows, macOS, iOS, Android, Linux, the web, and Edge / Chrome / Safari
- Your data
- Markdown files in a folder you choose
- Account
- None needed
- Platforms
- iPhone, iPad, Mac, Windows, Android, Linux, Web, Browser extension
- Privacy
- Privacy policy
- Terms
- Terms of use
- Support
- Get help with One Thing
- Source
- Source on GitHub