Features

Everything you need to capture a note and find it again

MnemoNotes is a free, end-to-end encrypted note-taking app that runs in your browser, on computers and phones. Use it for quick notes, lists, plans, study notes, a journal, or the notes you share with your team. Every feature below works on encrypted notes: the text, hints, documents and searches never reach the server readable.

Capture in seconds

Press Alt+N (Option+N on a Mac) anywhere in the app and a new note opens with the cursor in the text. Write in Markdown. The first line becomes the title, so there is no title field to fill in. Save with Cmd/Ctrl+Enter. Use it for quick notes.

Hints: tag notes the way you remember them

Next to the text, a note has hints, each with a prefix and autocomplete:

• @person for who it is about or who you talked to;
• #topic for what it is about;
• /document to add it to a document while you type;
• +note to link it to another note by its title.

Hints are private to you. When you share a note, the other person sees the text, not how you tagged it or which documents you added it to, and tags it their own way.

Search that works like memory

Combine hints, words from the note and a date range: “@Sam #books, sometime in spring”. Notes whose hints or title contain your words come first. Search runs on your device, so it is instant, works offline, and your search terms are never sent anywhere.

Documents and folders

Keep notes in documents, and documents in folders, as deep as you like. A note can be in several documents at once, and you can add any note to any document. Every note is also on the home page, newest first, whether it is in a document or not.

Version history

Every edit makes a new version, with who changed what. Restore an earlier version at any time. Your account keeps each note’s first version and its three most recent ones.

Sharing and shared documents

Add a contact with a one-time invite link, then share a note with them as an editor or a viewer. For a team, create a shared document: every note in it is shared with every member, people who join see its whole history, and people who leave lose access to anything added after. Use one as a team decision log.

Offline first

Your notes are stored on your device, encrypted. Read, write and search without a connection; changes sync in the background when you are back online. The app shows separately whether a change is saved on this device and whether it has synced.

A passkey that is your key, not just your login

Most apps use a passkey only to sign you in. MnemoNotes uses it to unlock your encrypted notes: your fingerprint, face or device PIN produces a secret on your device, and that secret never reaches the server. Sign in with Google, then unlock with a passkey, a passphrase, or your recovery key. How the encryption works.

Import and export

Bring an Obsidian vault: folders become documents, tags become #topic hints and wikilinks become links between notes. Take your notes with you at any time as JSON, one plain text file, or a zipped folder of Markdown files. Import and export both happen on your device.

What it does not do yet

• No desktop or mobile apps yet: MnemoNotes runs in the browser.
• Notes are text and Markdown; there are no file attachments yet.
• Two people cannot type in the same note at the same moment.

See what I plan next.