Alternatives to OmniOutliner for all platforms with any license

  • WorkFlowy icon

    WorkFlowy

    List-making software with infinite levels of indentation, giving you the flexibility of infinite layers of organization.

    Freemium Web / Cloud Android iPhone Android Tablet iPad

  • CherryTree icon

    CherryTree

    A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file. ...

    Open Source Windows Linux

  • wikidPad icon

    wikidPad

    wikidPad is a Wiki-like notebook for storing your thoughts, ideas, todo lists, contacts, or anything else you can think of to write...

    Open Source Mac Windows Linux BSD

  • NixNote icon

    NixNote

    NixNote, formerly Nevernote, is an open source client for Evernote . It is written in Java so it will also run on Windows &...

    Open Source Mac Windows Linux

  • MyLifeOrganized icon

    MyLifeOrganized

    MyLifeOrganized (MLO) is a personal task outliner and to-do list manager which will help you to organize your goals, projects and...

    Freemium Windows Android iPhone Android Tablet iPad Apple Watch

  • Org-mode icon

    Org-mode

    Org-mode is for keeping notes, maintaining ToDo lists, doing project planning, and authoring with a fast and effective plain-text...

    Open Source Mac Windows Linux Android iPhone iPad

    • Orgmode is not tailored to writing but more to organizing.
      Guest • Feb 2016 Disagree   Agree
  • EssentialPIM icon

    EssentialPIM

    EssentialPIM lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and...

    Freemium Windows Android iPhone

  • KeepNote icon

    KeepNote Discontinued

    KeepNote: note-taking and organization. KeepNote is a note taking application that works on Windows, Linux, and MacOS X. With...

    Open Source Mac Windows Linux

  • Moo.do icon

    Moo.do

    Moo.do is a notepad, a to-do list, and an outliner, but with advanced features that make the cloud-based application much more useful...

    Freemium Mac Windows Web / Cloud Android iPhone

  • Piggydb icon

    Piggydb

    Piggydb is a Web notebook application that provides you with a platform to build your knowledge personally or collaboratively. With...

    Open Source Mac Windows Linux Self-Hosted

  • UV Outliner icon

    UV Outliner Discontinued

    UV Outliner is a small and powerful single-pane outliner. It is intended for creating, organizing, and collecting information. With...

    Free Windows

    • It behaves like OmniOutliner but with much fewer features.
      Guest • Nov 2015 Disagree   Agree
  • Checkvist icon

    Checkvist

    Checkvist is a web tool for creating online outlines, hierarchical task lists, collecting and structuring all kinds of information. It...

    Freemium Web / Cloud Android iPhone iPad

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  • Manuskript icon

    Manuskript

    Open-source tool for writers. With outliner, character management, plot development, distraction-free editor, etc.

    Open Source Mac Windows Linux

  • germ.io icon

    germ.io

    germ.io is a project management tool that is centered around ideas and taking them through to execution. germ features a visual...

    Free Personal Mac Windows Linux Web / Cloud Android Tablet iPad

  • Organon icon

    Organon

    Organon is a plugin for LibreOffice and OpenOffice. Organon allows to split up large texts into parts, allows tagging and opening...

    Open Source Mac Windows Linux LibreOffice Apache OpenOffice

  • Dynalist icon

    Dynalist

    Dynalist is a web app that let's you break down and organize your thoughts in the format of lists.

    Freemium Web / Cloud

  • Quoll Writer icon

    Quoll Writer

    Focus on your words not the interface. Quoll Writer is a writing application that helps you focus on your words. Clean and...

    Open Source Windows

  • Tkoutline icon

    Tkoutline

    Tkoutline is a single pane, cross-platform outline editor written in Tcl/Tk . With this editor, information can be structured...

    Open Source Windows Linux

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  • Cloud Outliner icon

    Cloud Outliner

    Cross-platform app for Mac, iPhone, iPad, and iPod Touch. Sync outlines between computers and devices with iCloud. Sync outlines with...

    Commercial Mac Web / Cloud iPhone iPad

  • Tree icon

    Tree

    Tree is an outliner featuring a horizontally expandable tree view. Tree assists you in organizing your information, sketching plans...

    Commercial Mac

  • Listography icon

    Listography

    Create your lists, preserve your story, and stay inspired. "Take dictation please. Possible candidates for kite flying...

    Free Personal Web / Cloud iPhone

  • True Novelist icon

    True Novelist

    Writing a novel is a large undertaking. True Novelist was created to make the process as easy as possible for authors.

    Free Web / Cloud

  • TreeLine icon

    TreeLine

    TreeLine just stores almost any kind of information. A tree structure makes it easy to keep things organized. And each node in the...

    Open Source Windows Linux

  • Tinderbox icon

    Tinderbox

    Tinderbox is a personal content assistant that helps you visualize, analyze, and share your notes. Tinderbox stores and organizes...

    Commercial Mac

  • Mars Notebook icon

    Mars Notebook

    This is the very useful tree-styled personal information manager. English, Russian, Spanish, Bulgarian, Ukrainian, German, Polish...

    Freemium Windows

  • Week Plan icon

    Week Plan

    Check out this FREE online fluid weekly planner. Stop trying to be productive, be effective!

    Freemium Windows Web / Cloud Android iPhone Android Tablet iPad

  • myTinyTodo icon

    myTinyTodo

    Simple way to manage your todo list in AJAX style. Written in PHP and jQuery. Data stored in SQLite or MySQL database. Distributed...

    Free Self-Hosted

  • Outspline icon

    Outspline

    Extensible outliner and personal time organizer to manage todo lists, schedule tasks, remind events.

    Open Source Linux Python wxPython

  • Memento icon

    Memento

    Memento is a personal database that allows you to store all personal data in one place. Collections, purchases, inventory, recipes...

    Freemium Android

  • Agenda At Once Free PIM icon

    Agenda At Once Free PIM Discontinued Warning

    All-in-one organizer - integrates all your PIM needs in the well-organized interface: to-do list management, time planning, contacts...

    Free Windows

  • CarbonFin Outliner

    Great application for creating lists and outlines that need to be accessible anywhere, good for reoccurring shopping lists or check...

    Commercial Web / Cloud iPhone iPad

  • The Outliner of Giants icon

    The Outliner of Giants

    The Outliner of Giants is a feature rich outline processor designed to support the creation and management of large corpuses of...

    Freemium Web / Cloud

  • Orgzly icon

    Orgzly

    Outliner for notes and tasks in plain-text

    Free Android

  • Foldout icon

    Foldout

    The single-pane outliner that Windows users have been searching for for years, free! Extensive keyboard commands make outlining a...

    Free Windows .NET Framework

  • Eggscellent icon

    Eggscellent

    Eggscellent (formerly Pomodorable) offers an exciting and adorable approach to get work done! Based on effective time management...

    Commercial Mac

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