OmniOutliner alternatives · Note-Taking
Self-hosted alternatives to OmniOutliner
The OmniOutliner listing does not say it can be self-hosted. 20 of the 146 other note-taking apps in this directory can be self-hosted, according to their own sites.
OmniOutliner is a paid product with a free trial, starting at $24.99 one-time license for version 6 (Essentials). All of them are free or have a free plan.
20 tools · Listings checked up to Oct 9, 2026 · Where the facts come from
The 12 closest to OmniOutliner
- Free
Linwood Butterfly
Open-source handwriting and sketching app with an infinite canvas
- Linwood Butterfly is free. OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- Linwood Butterfly has a free plan. OmniOutliner does not, though it has a free trial.
- Only Linwood Butterfly lists a web app.
- Only Linwood Butterfly lists Windows, Linux and Android apps.
- Free plan · from $4/mo
Anytype
Local-first, end-to-end encrypted workspace for notes and data
- Anytype starts at $4 per month, billed yearly ($5 billed monthly). OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- Anytype has a free plan. OmniOutliner does not, though it has a free trial.
- Only Anytype lists Windows, Linux and Android apps.
- Anytype is self-hostable and end-to-end encrypted, according to its own site.
- Free plan · from $64 one-time
SiYuan
Open-source, local-first notes built on linked content blocks
- SiYuan starts at $64 one-time payment (PRO Features). OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- SiYuan has a free plan. OmniOutliner does not, though it has a free trial.
- Only SiYuan lists a web app.
- Only SiYuan lists Windows, Linux and Android apps.
- Free
FUTO Notes
Local-first Markdown notes with self-hosted encrypted sync
- FUTO Notes is free. OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- FUTO Notes has a free plan. OmniOutliner does not, though it has a free trial.
- Only FUTO Notes lists Windows, Linux and Android apps.
- FUTO Notes is open source, self-hostable and end-to-end encrypted, according to its own site.
- Free
NoteDiscovery
Self-hosted Markdown knowledge base that runs in the browser
- NoteDiscovery is free. OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- NoteDiscovery has a free plan. OmniOutliner does not, though it has a free trial.
- Only NoteDiscovery lists a web app.
- Only OmniOutliner lists macOS and iOS apps.
- Free plan · from €2.40/mo
Joplin
Open source Markdown notes with sync through a service you choose
- Joplin starts at 2.40€ per month, billed yearly at 28.69€ (Joplin Cloud Basic). OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- Joplin has a free plan. OmniOutliner does not, though it has a free trial.
- Only Joplin lists a web app.
- Only Joplin lists Windows, Linux and Android apps.
- Free plan · from $90/yr
Standard Notes
End-to-end encrypted notes app with open source clients
- Standard Notes starts at $90 per year (Productivity). OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- Standard Notes has a free plan. OmniOutliner does not, though it has a free trial.
- Only Standard Notes lists a web app.
- Only Standard Notes lists Windows, Linux and Android apps.
- Free plan · from $1.99/mo
Notesnook
Open source, end-to-end encrypted notes on every platform
- Notesnook starts at $1.99 per month, or $19.99 per year (Essential). OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- Notesnook has a free plan. OmniOutliner does not, though it has a free trial.
- Only Notesnook lists a web app.
- Only Notesnook lists Windows, Linux and Android apps.
- Free plan · from $6.75/mo
AFFiNE
Open-source workspace that merges docs, whiteboards and databases
- AFFiNE starts at $6.75 per month, billed annually. OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- AFFiNE has a free plan. OmniOutliner does not, though it has a free trial.
- Only AFFiNE lists a web app.
- Only AFFiNE lists Windows, Linux and Android apps.
- Free
Trilium Notes
Free, open-source hierarchical notes for a personal knowledge base
- Trilium Notes is free. OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- Trilium Notes has a free plan. OmniOutliner does not, though it has a free trial.
- Only Trilium Notes lists a web app.
- Only Trilium Notes lists Windows and Linux apps.
- Free
TiddlyWiki
Open-source personal wiki kept in a single HTML file
- TiddlyWiki is free. OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- TiddlyWiki has a free plan. OmniOutliner does not, though it has a free trial.
- Only TiddlyWiki lists a web app.
- Only TiddlyWiki lists Windows and Linux apps.
- Free
Memos
Open-source, self-hosted timeline of short Markdown notes
- Memos is free. OmniOutliner starts at $24.99 one-time license for version 6 (Essentials).
- Memos has a free plan. OmniOutliner does not, though it has a free trial.
- Only Memos lists a web app.
- Only Memos lists a browser extension.
8 more that can be self-hosted
All 20 in one tableCommon questions
Is there a self-hosted alternative to OmniOutliner?
Yes. Linwood Butterfly, Anytype, SiYuan, FUTO Notes, NoteDiscovery, Joplin, Standard Notes, Notesnook and 12 more can be self-hosted, according to their own sites.
Can OmniOutliner be self-hosted?
The OmniOutliner listing does not say it can be self-hosted. The listing was checked on Oct 6, 2026 against the pages it cites.
When was this checked?
Each listing shows its own date. On this page they run from Oct 4, 2026 to Oct 9, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to OmniOutliner: the alternatives its listing names first, then the tools that share the most features with it.