Notes & Knowledge

Simplenote

Simplenote is a plain-text note-taking app that keeps notes synced across devices without a sync button. It is used for quick capture, checklists, and reference notes that stay searchable and available offline.

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✓ Software download·Open Source·Updated September 16, 2026
DeveloperAutomattic, Inc.
LicenseOpen Source
File size103 MB
Languageen-US
Downloads10

How Simplenote Keeps Notes Simple and Synced

Simplenote is a note-taking application built around plain text and immediate synchronisation. You create a note, type, and stop worrying about saving: every change is stored against your account and appears on the other devices you use within moments, with no sync button to press. Tags replace folders as the organising tool, and search runs instantly across the whole collection, so a note written months ago is a few keystrokes away. Notes can be pinned to the top, sorted by date or name, and reviewed through a history slider that shows every earlier revision. Markdown can be switched on per note for headings, lists, tables, and links.

Simplenote is deliberately small. There is no rich text editor, no attachment pane, and no folder tree to maintain, which is why it opens instantly and stays responsive on an old machine. That restraint shapes how people use it: short capture on the move, checklists that several people edit, and long reference notes that benefit from a fast search more than from formatting. Where a heavier notebook such as CherryTree suits structured documentation with code and images, this one suits the quick thought that would otherwise be lost. Notes can be shared with a collaborator by email address, published as a read-only web page, or exported in bulk for backup. Notes written in Markdown paste in with formatting intact.

Benefits of Using Simplenote

Simplenote's appeal is that nothing gets in the way of writing the note. There is no save step, no formatting toolbar to negotiate, and no decision about where a note should live before it is written; tags can be added later, once the thought is safe. Synchronisation is the part that quietly does the heavy lifting: a shopping list started at a desk is editable from a phone in a shop aisle, and a colleague who was given access to one note sees the change without being sent anything. The history slider is the safety net, because an accidental deletion of a paragraph can be reversed by dragging back through revisions rather than retyping from memory. Search, tags, and pinning keep a large collection usable, checklists cover the to-do case, and printing or publishing handles the moment a note has to leave the app. For capture-first note takers, that is the whole feature list they need.

Simplenote features

Key capabilities and highlights.

Feature 1

Sync That Needs No Button

Notes are stored against the account and appear on other devices moments after a change, so there is no saving or syncing step to remember. Edits made offline are applied and merged automatically once the connection returns.

Feature 2

Tags and Instant Search

Tags take the place of folders in Simplenote, so a note can sit in several categories without being duplicated, and typing in the search box filters the whole collection as you type. Recently used tags can be applied with a click.

Feature 3

History Slider and Restore

Every change is backed up, and the history view lets you drag back through earlier revisions of a note to see what it said last week or last month. An older version can be restored, which turns a careless deletion into a minor inconvenience.

Feature 4

Markdown Writing and Preview

Markdown can be enabled per note, giving headings, bold and italic text, links, images by URL, tables, code blocks, blockquotes, and checklists. A preview toggle shows the formatted result, so a layout mistake is caught before the note goes anywhere.

Feature 5

Collaboration and Web Publishing

A note can be shared with one or more people by entering their email address, after which it appears in their own note list and edits flow both ways. For a read-only version, publishing creates a public web link.

Feature 6

Full Offline Access

Once signed in and downloaded, notes can be read and edited with no connection at all, which suits travel, basements, and flaky networks. Offline edits sync as soon as the device is back online, so a note taken on a plane is waiting on the desk later.

Feature 7

A Distraction-Free Editor

The editor is plain text with a small toolbar for checklists, a focus mode that hides the note list, adjustable font size, and keyboard shortcuts for creating, searching, and formatting notes. Sorting covers modified date, creation date, and name.

Feature 8

Import, Export, and Printing

Notes can be imported from plain text, Markdown files, Simplenote exports, and Evernote exports, so an existing archive moves across without retyping. Export produces a copy of every note and tag, and individual notes can be printed.

Old versions

Browse historical releases and previous builds.

2.23.2March 7, 2025
2.21.0October 15, 2021
2.18.0—
2.19.0—
2.20.0—

Frequently asked questions

Common questions about Simplenote.

What is Simplenote used for?

It is used for quick capture and reference notes: to-do and shopping lists, meeting notes, drafts, and short pieces of text that need to be found again quickly. Everything stays plain text, which keeps search fast and the interface out of the way.

Can I use Simplenote without an internet connection?

Yes, once you have signed in and your notes have downloaded. The note list and editor keep working offline, and changes made without a connection sync automatically when the device is online again, including edits made on other devices in the meantime.

Does Simplenote support Markdown?

It does. Markdown can be switched on for an individual note, and a preview toggle renders the formatted version, with headings, lists, tables, links, images by web address, code blocks, and checklists supported. Notes can also be published as formatted web pages.

Can I share a note with someone else?

Yes. Adding a person's email address to a note shares it so that it appears in their own list, and both parties can edit it. For a view-only copy, publish the note instead, which creates a public link that anyone with the address can read.

Can I recover a note I deleted or changed by mistake?

Notes are backed up on every change, and the history view shows earlier revisions, so a paragraph removed days ago can be dragged back and restored. Deleted notes also move to a trash area, where they stay long enough to be recovered.

Can I add images or attachments to a note?

Notes are text only. Images can appear through Markdown by pointing at a web address, but files cannot be uploaded into a note, which is a deliberate limit that keeps the app light and the search instant. Work that depends on attachments belongs in another tool.

How do I back up my Simplenote notes?

Use the export option, which produces a copy of every note and its tags that you can store wherever you like. Because notes also live on the devices you have signed in to, a second copy is usually already available if something goes wrong.

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Simplenote is a plain-text note-taking app that keeps notes synced across devices without a sync button. It is used for quick capture, checklists, and reference notes that stay searchable and available offline.