OpenTodo

New: OpenTodo for iPhone and iPad is in the App Store. It's the first release, a first step: it connects to your OpenTodo server and adds reminders on the phone, the share sheet, a Today widget and Face ID unlock. Expect some rough edges; tell us what to improve.

Ways to run it: PikaPods (hosted, no server needed) · Docker · Umbrel (coming soon) · Unraid · Home Assistant · Kubernetes (Helm) · Single binary · iPhone and iPad app (App Store) · Android app (APK from GitHub; Google Play and F-Droid coming soon) · all 20 platforms

How it works

1. Capture

Type a task the way you say it: Call Sarah next Wed 3pm #work p1 sets the date, time, project and priority. Dictate it, send a page from your phone's share menu, or forward an email. Anything without a home lands in the Inbox. Quick add · Voice · Capture

2. Plan your day

Today shows what is due and what is still open from earlier. Give tasks an estimate and drag them onto the Day or Week calendar to see whether the day fits. Today · Time blocking

3. Focus

Open one task in Focus and start a Pomodoro, Flowtime or countdown timer. The time is logged to the task. Focus

4. Share

Share a project with your family or your team as viewer, editor or admin. Assign tasks, comment, and see what changed. Everyone can edit offline. Sharing

Highlights

• Your data stays yours. Everything lives in one folder on your server. Export it at any time, import it anywhere, and schedule backups, encrypted if you like, to disk, S3 or WebDAV. Backups · Import and export
• Works offline on every device. Each phone and computer keeps a full copy, so the app works with no connection and syncs when it's back. Install the app
• Bring your tasks. Import from Todoist, TickTick, Things, Super Productivity, Microsoft To Do, Apple Reminders and more, with a preview and undo. Import
• Private by design. No telemetry, no analytics, no third-party scripts. Turn on end-to-end encryption and the server holds only ciphertext. Privacy · Encryption
• Bring your own AI, if you want it. Talk to an assistant in the app, or connect the one you already use. Off by default, and every change can be undone. AI

No subscription, no lock-in, no tracking.

Explore all features →

How it compares

	OpenTodo	Todoist	TickTick	Things	Super Productivity
Open source	✅	❌	❌	❌	✅
You can host it yourself	✅	❌	❌	❌	✅
Works offline	✅	✅	⚠️	✅	✅
Free, with every feature	✅	❌	❌	❌	✅
No subscription	✅	❌	❌	✅	✅
Optional end-to-end encryption	✅	❌	❌	❌	✅
Shared projects	✅	✅	✅	❌	❌

✅ yes · ❌ no · ⚠️ partly, or not documented. Todoist and TickTick have a free plan with limits; Things is a one-time purchase per device type. Based on each product's public information as of November 2026. If an entry is wrong, open an issue with a source.

Full comparisons →

Install

Try it in 30 seconds

• No install: open the demo and press Try the demo. You get a private copy with sample data, deleted after a few hours.

• On your machine or server:

  docker run -d -p 8080:8080 -v opentodo-data:/data ghcr.io/opentodoapp/opentodo:stable
  

  Open http://localhost:8080. The first visit creates your account. No configuration needed.

Docker Compose

git clone https://github.com/OpenTodoApp/OpenTodo.git
cd OpenTodo
docker compose up -d

Data is kept in the opentodo-data volume. On a server reachable from the internet, finish setup right after starting it, or set OPENTODO_SETUP_CODE=required (the setup code). Behind a reverse proxy, set OPENTODO_BASE_URL=https://todo.example.com.

The image is published for linux/amd64 and linux/arm64. :stable is the latest release, :1.1 follows the 1.1 releases (fixes only), :1.1.1 pins one version, and :latest follows the main branch. Upgrades from any release since 0.1.0 work directly, and nothing you rely on breaks within 1.x (stability). More in Running with Docker.

Single binary

Download opentodo-<os>-<arch> for Linux, macOS or Windows from the latest release and run it. It serves on port 8080 and keeps its data in ./data. To build from source: make build && ./bin/opentodo (Go 1.26+ and Node 22+).

Configuration

Nothing is required. Every setting is an optional environment variable with a safe default: see the configuration reference. To add people, keep sign-up closed and send invitation links (managing users).

The self-hosting handbook covers every platform, TLS, backups, upgrades and monitoring. The ot command-line client is in the CLI guide.

This is the beginning of the README. Read the rest at the original. Read the full README ↗