OpenToDo

A free, local-first to-do app with optional AI providers, built with C# / .NET 8 and Avalonia.

• Local-first: every task is a plain JSON file under %LOCALAPPDATA%/OpenToDo/tasks (or the platform equivalent).
• First run: a short welcome + tutorial asks for your username. It is saved to settings.json (created on first launch) and used to greet you; you can change it any time in Settings.
• Home dashboard: personalised greeting, completion streak with a flame that lights up, day/week/month/year stats, a 14-day activity chart and a one-click AI progress report.
• Fast capture: quick-add bar, Ctrl+N for the full editor, due-date shortcuts, search.
• AI (optional): OpenAI, Groq and OpenRouter. A collapsible sidebar assistant can add, complete, reschedule and delete tasks for you, and summarise how you're doing. API keys live in the OS credential store, never in settings.json.

Build & test

dotnet build OpenToDo.sln
dotnet test
dotnet run --project src/OpenToDo.App

Layout

Built With

• c#