Free and open first
Best Outliner Software in 2026
Outliner software helps organize ideas and notes into structures you can navigate. Compared on navigation modes, Markdown support, backlinks, and export formats, the entries offer different ways to work with and move outline content. App platforms and offline access can matter across devices or when you work without a connection, while real-time collaboration may be useful for shared work. Free-plan availability and paid-from pricing round out the comparison. Dynalist, Indenta, and Legend are among the options to consider. Think about how you capture, connect, and reuse material when comparing their listed features.
- 31 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
outl
Free plan Open source AndroidAPIiPhone+4outl combines a local Markdown workflow with offline editing, encrypted device sync, and outliner features. Keep its public beta status and unsigned macOS DMG in mind.
- 2
Checkvist
Free plan AndroidAPIExtension+2Checkvist pairs flexible list hierarchies with task details, sharing, and offline mobile access, including a substantial Free plan.
- 3
Dynalist
Free plan AndroidAPIExtension+5Dynalist offers flexible outlines, task dates, navigation tools, and several export formats.
- 4
CrossLine
Free plan LinuxMacWindowsCrossLine combines outlining, cross-links, transclusion, and search in a free application. Check the platform-specific startup and build notes if you plan to use Mac or add Lucene.
- 5
Fractal Note
Free plan ExtensionLinuxMac+1Pick Fractal Note if you want a VS Code-based environment that brings Markdown notes, documents, and several navigation views together.
- 6
Indenta
Free plan AndroidiPhoneLinux+3Indenta combines outlining, linked notes, tasks, and offline access without paid tiers or stated device limits.
- 7
Cloud Outliner
Free plan iPhoneMacCloud Outliner combines flexible outline editing with search, filters, exports, and sharing options.
- 8
Cloud Outliner
Free plan iPhoneMacChoose Cloud Outliner if you want structured outlines with document organization, search, and export or sharing options on Mac and iOS.
- 9
Legend
Free plan AndroidiPhoneLinux+3Legend combines flexible work organization with offline access and integrations. Mobile users should note that the Browser Pane is unavailable in the app.
- 10
Leo Editor
Free plan APILinuxMac+2Leo Editor combines outlining and knowledge organization with scripting and integrations for notebook and programming workflows.
- 11
Bike Outliner
Free plan MacBike Outliner combines outlining, writing, navigation, and automation features for macOS. Free mode covers core outline editing, while several listed capabilities require a paid license.
- 12
Dashword
Free plan MacWindowsChoose Dashword if you want a free outliner with column and list views, notes, and keyboard shortcuts. Look elsewhere if you need real-time collaboration or backlinks, which are unavailable.
- 13
Kindling
Free plan LinuxMacWindowsKindling keeps outlining, drafting, reference notes, and review tools in a free desktop app. Its local storage and offline workflow may suit writers who prefer project data on their device.
- 14
Logseq
Free plan AndroidiPhoneLinux+3Logseq combines local note-taking, knowledge links, tasks, and PDF annotation across a broad set of platforms.
- 15
FocusNote
Free plan MacChoose FocusNote if you want a local, offline macOS outliner with keyboard navigation and connected notes. Its range of content and focus tools may also suit writing and study workflows.
- 16
Tana
Free plan LinuxMacWeb+1Tana combines call capture with proposed follow-up work that people can review before it is applied. Check its free-plan limits and the lack of listed mobile apps against your workflow.
- 17
Tine
Free plan AndroidiPhoneLinux+3Tine offers local Markdown outlining, query tools, sheets, and static-site publishing without an account or built-in sync.
- 18
Drummer
Free plan MacWebDrummer combines outlining, JavaScript scripting, and blog publishing, with a Mac desktop counterpart that supports local files.
- 19
Org mode
Free plan AndroidiPhoneLinux+3Pick Org mode if you want free, plain-text task, document, and code workflows centered on GNU Emacs.
- 20
- 21
MemPad
Free plan WindowsMemPad combines outlining, diary support, search, and file-based notes in a free Windows program.
- 22
TreeLine
Free plan LinuxMacWindowsTreeLine offers a flexible tree structure for organizing and exporting information without an ongoing price. Check the platform caveats and Linux requirements before choosing it.
- 23
Outspline
Free plan LinuxOutspline combines an outliner with scheduling and event reminders through its Organism add-on. Its Linux availability and listed release are important considerations.
- 24
Oxinot
Free plan LinuxMacWindowsChoose Oxinot if you want a free desktop app that keeps Markdown notes local and offers outline, search, and graph navigation.
- 25
Zavala
Free plan iPhoneMacZavala combines hierarchical outlining with offline editing, iCloud collaboration, and several import and export formats.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
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