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Self-hosted alternatives to Simplenote

Simplenote is a note-taking app from Automattic that syncs notes across iOS, Android, Mac, Windows, Linux and the web. Two listed apps do its main job and run in your own Cloudflare account.

Each answer comes from the app’s README and source code, compared with the features Simplenote describes on its own site.

  • Inkstone public demo sign-in screen with the demo account filled in

    Private Markdown notebook with backlinks, offline sync, MCP access and WebDAV or S3 backups, running on Workers

    Deploy
    Manual
    License
    LGPL-3.0-only
    GitHub stars
    1.1k stars
    Last commit
  • FlareMo timeline on desktop and phone with the note composer, a note with a highlighted quote, its tags, and counters for memos, tags and days

    Memos-style quick notes and a shared team knowledge base, with semantic search and long-term memory for AI agents

    Deploy
    One-click
    License
    AGPL-3.0
    GitHub stars
    303 stars
    Last commit

Simplenote features, app by app

FeatureInkstoneFlareMo
Plain note taking with automatic sync across devicesYesYes
Tags and instant searchYesYes
Markdown support with previewYesYes
Note history that backs up every changeYesYes
Sharing and collaboration on notesPartlyPartly
Publishing notes onlineYesPartly
Apps for iOS, Android, Mac, Windows, Linux and the browserPartlyPartly

Private Markdown notebook with backlinks, offline sync, MCP access and WebDAV or S3 backups, running on Workers

What a Simplenote user would miss
It has no native apps and no shared editing between accounts.
What it adds
Runs in your own Cloudflare account in any browser, with an OAuth MCP server and public note links.
  • Yes Plain note taking with automatic sync across devices. Notes sync across devices through the Worker with an offline write queue.
  • Yes Tags and instant search. Inline tags, nested folders and D1 full-text search with filters.
  • Yes Markdown support with preview. Markdown with live preview, split view and reading mode.
  • Yes Note history that backs up every change. Version history for each note.
  • Partly Sharing and collaboration on notes. Several user accounts and public note links; no shared editing found.
  • Yes Publishing notes online. Public note links with optional passwords and expiry dates.
  • Partly Apps for iOS, Android, Mac, Windows, Linux and the browser. Browser app with desktop and mobile layouts that installs as a PWA; no native apps.

Sources:github.com/shuaiplus/inkstone#featuressimplenote.com/

Memos-style quick notes and a shared team knowledge base, with semantic search and long-term memory for AI agents

What a Simplenote user would miss
It has no native apps, no shared editing and no published site for notes.
What it adds
Notes live in your own D1 and R2, with optional team mode and an Agent Memory hub for AI agents.
  • Yes Plain note taking with automatic sync across devices. Notes live in D1 and show on every signed-in device, with an offline write queue in the PWA that replays when the connection returns.
  • Yes Tags and instant search. Multi-level tags and SQLite FTS5 full-text search with operators such as has:attachment and is:pinned.
  • Yes Markdown support with preview. Markdown and GFM cards.
  • Yes Note history that backs up every change. Revision history with diffs and one-click restore.
  • Partly Sharing and collaboration on notes. Optional team mode with owner, admin and member roles and team-visible notes; no shared editing found.
  • Partly Publishing notes online. Time-limited public read-only share links; no published site.
  • Partly Apps for iOS, Android, Mac, Windows, Linux and the browser. Installable PWA, and Memos-compatible mobile clients such as Moe Memos can connect; no native apps.

Sources:github.com/realchendahuang/flaremo#readmesimplenote.com/