Software Alternatives, Accelerators & Startups

TODO.73.nu VS React Complex Tree

Compare TODO.73.nu VS React Complex Tree and see what are their differences

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TODO.73.nu logo TODO.73.nu

A simple, fast, and private TODO app with sync, recurring tasks, and offline support.

React Complex Tree logo React Complex Tree

Unopinionated accessible tree component with drag and drop
  • TODO.73.nu Landingpage with some todos and folders
    Landingpage with some todos and folders //
    2026-02-10
  • TODO.73.nu Todo overview
    Todo overview //
    2026-02-10
  • TODO.73.nu Settings
    Settings //
    2026-02-10

TODO is a fast, private task manager that runs entirely in your browser. Create one-time, recurring, or date-range tasks with flexible scheduling. From simple daily reminders to biweekly spans with completion targets. Organize tasks into color-coded folders and arrange them in your preferred order with drag-and-drop. All data stays in localStorage by default. Optional cross-device sync uses end-to-end encryption (AES-256-GCM with PBKDF2 key derivation) so the server never sees your tasks. No account, no email, no tracking. Install as a PWA for offline use and a native app experience. Available in English and German.

  • React Complex Tree Landing page
    Landing page //
    2023-10-14

TODO.73.nu

Website
todo.73.nu
$ Details
free
Release Date
2026 February
Startup details
Country
Germany
State
Bavaria

TODO.73.nu features and specs

  • Flexible Scheduling
    Single-day, date-range, and recurring tasks. Daily, weekly, biweekly, monthly, and yearly options.
  • Span Mode
    Define a recurring day range (e.g. Friday to Sunday) with a completion target instead of rigid daily schedules.
  • Range Targets
    Set how many times a task should be completed within a date range.
  • Folders & Custom Ordering
    Color-coded folders to organize tasks. Drag and drop to arrange tasks.
  • Encrypted Sync
    Sync across devices with a single key. AES-256-GCM encryption, PBKDF2 key derivation. The server never sees your data.
  • Offline PWA
    Install to your home screen. Works fully offline with service worker caching.
  • Import / Export
    Backup and restore all data as JSON. Merge or overwrite on import.
  • Theming
    Dark and light mode with auto-detection. Custom accent color.
  • Privacy by Design
    No accounts, no cookies, no analytics. All data stays on-device unless sync is explicitly enabled.

React Complex Tree features and specs

  • Customizability
    React Complex Tree offers a high degree of customizability, allowing developers to tailor the tree component to fit their specific needs. This can be especially useful for creating unique UI experiences.
  • Feature-Rich
    The library includes a wide range of features out of the box such as drag-and-drop support, keyboard navigation, and dynamic data loading, which can save development time.
  • Accessibility Support
    React Complex Tree is designed with accessibility in mind, providing support for ARIA attributes and keyboard interactions, which helps ensure that applications are usable by people with disabilities.
  • Performance
    The component is optimized for performance, handling large data sets efficiently without significant slowdowns, which is critical for applications that manage extensive hierarchical structures.
  • Community and Documentation
    The library has a supportive community and well-structured documentation, providing developers with ample resources to troubleshoot and extend its functionality.

Possible disadvantages of React Complex Tree

  • Complexity
    Due to its extensive features and customizability, React Complex Tree can be complex to set up and configure properly, which may lead to a steeper learning curve for new users.
  • Bundle Size
    As a feature-rich component, React Complex Tree can increase your bundle size, which might be a concern for projects where performance and loading time are critical.
  • Third-Party Dependency
    Relying on a third-party library introduces dependencies outside of your control, which may present challenges in terms of long-term maintenance and potential update or deprecation issues.
  • Specific Use Case Tailoring
    While it offers a lot of features, developers may find that very specific use cases require additional effort to customize or extend the component beyond its intended use.

Analysis of TODO.73.nu

Overall verdict

  • TODO.73.nu appears to be a minimalist, lightweight to-do and task management tool that can be a good fit for users who value simplicity and speed over feature-heavy platforms. However, without independent verification of its uptime, security practices, and data handling, users should evaluate it carefully before relying on it for critical tasks.

Why this product is good

  • Likely offers a clean, distraction-free interface for quick task capture
  • Minimalist tools tend to load fast and require little setup
  • May be free or low-cost, making it accessible for casual users
  • Simple task managers are easy to learn with minimal onboarding

Recommended for

  • Individuals who want a simple, no-frills to-do list
  • Users who prefer lightweight web tools over full project management suites
  • People managing personal tasks rather than complex team workflows
  • Anyone looking for a quick, temporary task-tracking solution

Analysis of React Complex Tree

Overall verdict

  • React Complex Tree is a solid, headless React library for building tree-view UI components, offering strong accessibility support, drag-and-drop, multi-selection, and search out of the box, while giving developers full control over styling and rendering. It's a good choice for developers who need a robust, unstyled tree component without reinventing complex interaction logic.

Why this product is good

  • Headless design gives full control over styling and markup, making it easy to integrate with any design system or CSS framework
  • Built-in accessibility (ARIA-compliant, keyboard navigation) saves significant development time
  • Supports advanced features like drag-and-drop reordering, multi-selection, and renaming out of the box
  • Actively maintained with good documentation and TypeScript support
  • Flexible data model that supports both controlled and uncontrolled tree state management
  • Free and open-source with no licensing costs

Recommended for

  • Developers building file explorers, folder structures, or nested navigation menus
  • Teams that need a customizable tree component that matches their existing design system
  • Projects requiring accessible, keyboard-navigable tree interfaces
  • Applications needing drag-and-drop reordering of hierarchical data
  • TypeScript-based React projects seeking type-safe tree components
  • Developers who prefer headless UI libraries over pre-styled component kits

Category Popularity

0-100% (relative to TODO.73.nu and React Complex Tree)
Task Management
100 100%
0% 0
Developer Tools
0 0%
100% 100
Todos
100 100%
0% 0
Design Tools
0 0%
100% 100

Questions & Answers

As answered by people managing TODO.73.nu and React Complex Tree.

What makes your product unique?

TODO.73.nu's answer

Span mode. Most todo apps force tasks into rigid daily checkboxes or single deadlines. TODO.73.nu lets you define recurring time windows with completion targets. "Exercise 3 times this week" tracks across Monday to Sunday and stops showing up for that time span, after checking it three times. On top of that, optional sync is end-to-end encrypted so the server can't read your tasks. No accounts, no sign-up, just a shared key.

Why should a person choose your product over its competitors?

TODO.73.nu's answer

Because it handles scheduling patterns that Todoist, Apple Reminders, and Google Tasks simply can't. "Do this 2 times between Monday and Friday." "Complete this 4 times within this date range." Those tools don't understand flexible windows. Beyond that, it's fast, private, and simple. No tracking, no ads, works offline, loads instantly, and your data stays yours.

How would you describe the primary audience of your product?

TODO.73.nu's answer

People who think in time blocks rather than strict daily routines. You want to run three times this week but don't care which days. You need to finish something within a project window and want to see progress without micromanaging individual dates. Privacy matters to you, but you also just want something that works without creating yet another account.

What's the story behind your product?

TODO.73.nu's answer

I wanted a simple way to track tasks that need to happen a certain number of times within a flexible window. Exercise 3 times this weekend. Finish something 5 times during a two-week stretch. Every app I tried forced per-day schedules. None of them got the concept of "X times within this span." So I built it. Span mode was the reason this app exists. Everything else (encrypted sync, offline support, the minimal design) grew around it because I wanted something I could actually use every day without giving up privacy or dealing with bloat.

Which are the primary technologies used for building your product?

TODO.73.nu's answer

Vanilla HTML, CSS, and JavaScript. No frameworks, no build tools, no dependencies. The whole app is a single HTML file. Encryption runs through the browser's native Web Crypto API (AES-256-GCM, PBKDF2). Service Workers handle offline use and PWA installation. LZ-String compresses data in localStorage. The backend is a small PHP script that only stores encrypted blobs and never sees your actual data. The whole thing is deliberately simple and self-hostable.

User comments

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Social recommendations and mentions

Based on our record, React Complex Tree seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

TODO.73.nu mentions (0)

We have not tracked any mentions of TODO.73.nu yet. Tracking of TODO.73.nu recommendations started around Feb 2026.

React Complex Tree mentions (2)

  • I'm building react-complex-tree, an unopinionated tree component for react, and recently released a new version!
    You can find the source code for it at https://github.com/lukasbach/react-complex-tree, and documentation and examples at https://rct.lukasbach.com. Source: over 3 years ago
  • I made an Unopinionated Accessible Tree Component with Multi-Select and Drag-And-Drop
    More examples on the customizability, in-depth documentation and a typing API is available at the documentation homepage: https://rct.lukasbach.com/. Source: about 5 years ago

What are some alternatives?

When comparing TODO.73.nu and React Complex Tree, you can also consider the following products

Todo.ly - Todo.ly is an intuitive and easy to use online Todo list, and Task Manager. It helps you to get organized, simplify your life, and to get things done. Create todo lists, and manage them online from anywhere.

Pagedraw - Beta release - Compile UI Mockups to React Code

Todo - Todo is aย to-do and task list app.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Todo.is - The Ultimate To-Do List App for Tasks and Project Management!

Checklist - Make a list of everything that you need to do during the week with Checklist. The lists that you make can be shared with friends and family on social media or sent in a message.