Outliner 4+

Organize your thoughts


Designed for iPad

    • $4.99



CarbonFin Outliner allows you to organize your thoughts, tasks, and projects. Easily create a todo list for today, or track an entire project anywhere you are. Share your outlines, edit them online, and collaborate with other Outliner users.

• Create outlines full of notes, structured lists, tasks, or detailed projects
• Sync your outlines automatically to Outliner Online, OneDrive, or Dropbox for web or desktop editing
• Get a quick view of project progress - tasks with subtasks show a pie-chart indicating percent completed

• Search through all your outlines or an individual outline
• Tag your outlines, and filter based on tag
• Archive old outlines to hide them from view without deleting

Easy-to-use Editor
• Drag and drop to move items within an outline
• Copy, paste
• Undo, redo
• Expand all, collapse all
• Optional outline numbering
• Zoom in to focus on a single subtree

Outliner Online
• Securely synchronize your outlines with Outliner Online
• View and edit your outlines in any web browser
• Import and export outlines as plain text or OPML
• Keep all your devices synchronized
• Share an outline with other Outliner users to collaborate

OneDrive and Dropbox
• Sync your outlines with OneDrive or Dropbox to allow quick import/export
• Seamlessly access and edit across your iOS devices and PCs

-= Recent version history =-

Version 3.16
• Minor bug fixes
• iOS 17 support

Version 3.15
• Fixed Dropbox integration
• Show a warning when unlinking Dropbox/OneDrive if there are unsynced outlines
• iOS 16 support

Version 3.12
• Dark mode
• Added confirmation to "Delete Completed"
• Changing "Archived" won't update the outline's modification time
• iOS 13 support

Version 3.11
• OneDrive sync support

Version 3.10
• Sync the order of outlines across devices (CarbonFin outlines only)
• iOS 12 support

Version 3.9
• iPhone X support
• iOS 11 support

Version 3.8
• Open In... support
• Ability to hide the outline list on iPad
• Minor UI tweaks

What’s New

Version 3.16.0

• Minor bug fixes
• iOS 17 support

Ratings and Reviews

4.8 out of 5
74 Ratings

74 Ratings

Solon1979 ,

This app is so well designed for making checklists and outlines

Update: 2017: This is still an app I use every day and still appreciate it after all these years. I hope the developer will add a tip jar feature to encourage further improvements. Outliner remains the best and easiest to use checklist and outlining app available. The only improvement I can think of is to enable automatic sorting of outlines by date modified, so the ones I change show up at the top.

I have used it for a few years now and still find it indispensable whenever I need to make a checklist, especially a complex one with subtasks or one which needs to be used daily (I can easily just tap "Uncheck all" and start in again). The website synching makes it easy to create a new outline's items on a computer and then have it show up on my device..

Ejhrich ,

Best outline app available

I have used this app for a number of years and it is the best, easiest to use app available for creating outlines. I use it daily for tracking home tasks, grocery lists and general to-do lists, as well as using it at work to track my project work. It makes it easy to create and use small lists, but it is particular fast and effective for large lists, eg some of my lists have 2500+ items with up to 5 levels of sublists. The app has gradually improved over the years by adding a variety user-requested features. It has been well-maintained, and upgrades and bugs fixes are provided quickly unlike many iOS apps. I can fully recommend this app to anyone who wants to creates lists and outlines of any size on Apple devices.

Blwillson ,

Super Multi Use App

I have used this app, and relied on it, for many years. I just count on it so much, it’s a part of life for me. It keeps my lists, checklists for when I have to travel, outlines for classes I teach, etc. Super features for me: Easy movement of whole outline blocks, simple to do and without the complicating logistics of other programs The ability to access outlines from ipad, iphone and the web. Easy export Just puts from my knothole. Thanks a ton for keeping this going.

I wrote this review several years ago and my opinion hasn’t changed a bit!!

App Privacy

The developer, CarbonFin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Identifiers
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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