TreeLine stores almost any kind of information in an organized tree structure. Each node in the tree can contain several fields, forming a mini-database.


  • Stores almost any type of information, including plain text, rich text, HTML, numbers, dates, times, booleans, URLs, etc.
  • The tree structure helps keep things organized.
  • Each node can have several fields that form a mini-database.
  • Several node types, with different sets of fields, can be included in one file.
  • The node format, including fields, output lines, formatting and tree-view icon, can be defined for each node type.

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User Reviews

  • A very useful product. It takes time to get used to. Unfortunate that there is no good introduction to this great program. The flexibility it provides is great. A Quick Intro: This is a Information Management Software. Remember it closely resembles a outliner like Leo. But, its strength lies in its data types. You can create different types of data types and then assign it to the node. For example imagine you are managing the development of a software product. So, there are a lot of information you have to keep. Software product development typically involves customer requirements, product releases, enhancement planning, QA, bug reporting/fixes etc. Each of the above topic involves different types of information to be stored. For example, customer requirement requires to store the customer details, the requirement, use case, the release the customer expects the requirement to be available etc. These are diverse information which cannot just be written as plain text. Treeline comes handy in these situations. When using TreeLine, you can create a data type called CUSTOMER_REQUIREMENT and then depending on the various information it has to hold, you can create fields. The fields can be of a specific type like Date, Boolean, Text etc. Once you create a node in the tree view, you can convert the node type to the one you require, and fill the details. This makes it easier to view. You can also customize how it has to be shown. Also, the software provides very powerful feature to find and filter based on user provided criteria. For example you can find all the nodes containing a particular text. Also, you can filter nodes based on certain criteria and save the criteria as well. Give it a try.. you will be amazed by its powerful features.

  • Wonderful program. Keep developing it. Please allow for the ESC key to quit. If outline was edited, then message will come up to save. If not edited, pressing ESC will quickly exit program. Thanks! Nicholas Kormanik

  • Treeline is a unique outliner having so many features which cannot find in other outliner applications.

  • This brings an incredible amount of features while retaining a simple useable interface. Using this for Requirements Analysis is effective and brings fun.

  • I love this app, it's the first app i will install no matter what os i am using, win/linux/mac, it works like a charm. I can do everything with it, thank you so much, Doug!

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Additional Project Details


French, German

Intended Audience

Advanced End Users, End Users/Desktop

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