Alternatives to TreeLine 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

  • Checkvist icon

    Checkvist

    Checkvist is a web tool for creating online outlines, hierarchical task lists, collecting and structuring all kinds of information. It has an outstanding keyboard support so you can easily re-structure your lists, filter, hoist and...

    Freemium Web / Cloud Android iPhone iPad

  • 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 than any of those tools would be on their own.

    Freemium Mac Windows Web / Cloud Android iPhone

  • UV Outliner icon

    UV Outliner

    UV Outliner is a small and powerful single-pane outliner. It is intended for creating, organizing, and collecting information. With UV Outliner you can create plans, schedules, and to-do lists, collect and organize ideas...

    Free Windows

    • Discontinued The program is no longer updated. Last version, 2.4.4, released in October 2012, can be still downloaded from the official website.
  • TreePad icon

    TreePad

    A free and lightweight outliner, only 465KB in size. It allows you to store all your notes, emails, texts, hyperlinks, etc. into one or multiple plain-text databases. With the look and feel of the familiar Windows Explorer, editing...

    Free Personal Windows Linux Raspberry Pi

  • OmniOutliner icon

    OmniOutliner

    OmniOutliner is a start-to-finish writing app. Perfect for collecting information, outlining Big Ideas, adding structure to any sort of writing, and much more. From grocery lists to email drafts to long-form composition. Write ...

    Commercial Mac iPhone iPad

  • Tkoutline icon

    Tkoutline

    Tkoutline is a single pane, cross-platform outline editor written in Tcl/Tk . With this editor, information can be structured hierarchically in an outline and outlines can be hyperlinked together to create a web of outlines.

    Open Source Windows Linux

  • Altova XMLSpy icon

    Altova XMLSpy

    Altova XMLSpy is the industry's best-selling XML editor and development environment for modeling, editing, transforming, and debugging XML-related technologies. It offers the world’s leading graphical schema designer, a code...

    Commercial Windows

  • XML Copy Editor icon

    XML Copy Editor

    XML Copy Editor is a fast, free, validating XML editor. * DTD/XML Schema/RELAX NG validation * XSLT * XPath * Pretty-printing * Syntax highlighting * Folding * Tag completion * Tag locking ...

    Open Source Windows Linux

  • Firstobject XML Editor icon

    Firstobject XML Editor

    Firstobject's free XML editor for Windows is called foxe. It loads big files (multi-megabyte) fast and lets you format XML and edit HTML and any loosely formed XML or other markup. The tree view is editable and customizable...

    Free Windows

  • XML Notepad icon

    XML Notepad

    XML Notepad provides a simple intuitive user interface for browsing and editing XML documents. Handy features include: * Tree View synchronized with Node Text View for quick editing of node names and values. *...

    Open Source Windows

  • <oXygen/> XML Editor icon

    <oXygen/> XML Editor

    <oXygen/> XML Editor is a cross platform XML Editor providing tools for XML authoring, XML conversion, XSL, XSLT, XQuery, XML Schema, DTD, Relax NG and Schematron development, SOAP and WSDL.

    Commercial Mac Windows Linux

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  • Outspline icon

    Outspline

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

    Open Source Linux Python wxPython

  • Info Select icon

    Info Select

    Info Select is a Personal Information Manager that organizes Internet data, notes, to-do's, schedules, contacts, addresses, forms, ideas, images, and much more. Been around since early Windows, highly regarded but very expensive...

    Commercial Windows

  • Natara Bonsai icon

    Natara Bonsai

    Natara Bonsai is a Palm OS and Windows Mobile outliner application with a Windows desktop client that also works as a full-featured standalone outliner and task manager. The Bonsai 5 Desktop Edition offers multiple views of a...

    Commercial Windows Windows Mobile HP webOS

    • Discontinued Official site inaccessible, but app still available on download sites.
  • 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 Evernote, Import and export outlines in OPML format.

    Commercial Mac Web / Cloud iPhone iPad

  • Fargo icon

    Fargo

    Fargo is a simple idea outliner, notepad, todo list, blogging tool, project organizer. It's an HTML 5 application, written in JavaScript, runs in any compatible browser, including Chrome, Safari, Firefox, Microsoft IE 10. ...

    Free Web / Cloud Dropbox

  • WMHelp XMLPad icon

    WMHelp XMLPad

    XMLPad is a XML editor, XML-Schema editor, validator and a lot more: -- Full XML Schema support. -- Project system with CVS support. -- XML Schema editor with color syntax highlighting, line numbers, element range navigation, and...

    Freemium Windows iPad

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  • 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 information, such as those generated by students, researchers, writers and project managers.

    Freemium Web / Cloud

  • Database Oasis icon

    Database Oasis

    A software that lets you create custom databases without knowing anything about them. Database Oasis' simple point and click interface allows you to tell it what data you want to store and how you want it presented. The rest is...

    Commercial Windows

  • Orgzly icon

    Orgzly

    Outliner for notes and tasks in plain-text.

    Free Android

  • Simple Outliner icon

    Simple Outliner

    Simple Outliner is an outline processor which can be operated easily. FEATURES: - Hierarchical outline. - Data can be exchanged with your PC as OPML or csv file through a web browser. - Data can be edited with a web browser on...

    Freemium iPhone iPad

  • Foldout icon

    Foldout

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

    Free Windows .NET Framework

  • XML Tree Editor icon

    XML Tree Editor

    XML Tree is a basic cross-platform tree view XML editor. It displays XML files as tree views and allows basic operations: adding, editting and deleting text nodes and their attributes. The main goal is providing a simple tool to...

    Free Windows Linux

  • OpenJean icon

    OpenJean

    PIM software, personal information manager, open source, cross-platform, organizer, address book, appointment, calendar, diary

    Open Source Mac Windows Linux

  • agendarium icon

    agendarium

    agendarium orders goals and tasks that are important to you and your teams.

    Free Web / Cloud

  • XML Marker icon

    XML Marker

    The simple yet actually fast source-level XML Editor XML Marker uses a combination of syntax-highlighting editor, tree view, and table views to help you get better insights of your XML code. Even better, this very lightweight XML...

    Commercial Windows

  • EditiX icon

    EditiX

    EditiX is a powerful and easy to use XML editor, Visual Schema Editor, XQuery Editor and XSLT debugger for Windows, Linux and Mac OS X designed to help web authors and application programmers take advantage of the latest XML and...

    Commercial Mac Windows Linux

  • XPontus XML Editor icon

    XPontus XML Editor

    XPontus XML Editor is a simple XML Editor oriented towards text editing. It can perform validation (DTD, XML Schema, Relax NG, Batch XML validation), XSL transformations(HTML, XML, PDF, SVG), schema/DTD generation, XML/DTD/HTML/XSL ...

    Open Source Mac Windows Linux

  • Stylus Studio icon

    Stylus Studio

    Stylus Studio® 2010 XML Enterprise Suite is an advanced XML Integrated Development Environment (XML IDE) consisting of hundreds of powerful XML tools in one all-inclusive suite, and high-performance Java & .NET components to...

    Commercial Windows

  • XMLmind XML Editor icon

    XMLmind XML Editor

    XMLmind XML Editor allows to author large, complex, modular, XML documents. It makes it easy mastering XML vocabularies such as DocBook or DITA.

    Commercial Mac Windows Linux

  • buzz.opml icon

    buzz.opml

    Buzz is a fast graphical editor for XML files with special support for OPML. Using the OPML convergence tools it will edit about any outline and many forms of indented text, including Python. In fact, Buzz was written with Buzz!

    Open Source Mac Windows Linux

  • XMLFox icon

    XMLFox

    XMLFox XML/XSD editor is the Windows based graphical tool for authoring, updating, exploring, well-formedness checking or validating XML documents. XMLFox is a graphical XML editing and validation tool for creating valid, well-formed...

    Freemium Windows

  • ExamXML icon

    ExamXML

    ExamXML displays XML documents in a tree view, highlighting differences down to the level of elements, words or attributes, so that you can view exactly which attributes and elements have been added, modified or deleted. Red color...

    Commercial Windows

  • Free DocusTree icon

    Free DocusTree

    With Free DocusTree you can easily organize your documents, daily activities, calendar and webpages and navigate to them instantly.Access your documents, activities and webpages by clicking on the corresponding node of the tree...

    Free Windows

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