End-to-end encrypted notes
Write it down in seconds. Find it again. Show it to no one.
MnemoNotes is a note-taking app that works the way memory does: who you talked to, what it was about, roughly when. Every note is encrypted on your device before it syncs, so only you and the people you share with can ever read it.
Sign in with Google. Unlock with your fingerprint or face.
Call with Anna about the launch
Move the date to the 14th. She’ll ask legal about the new terms before Friday.
q8Zl0fR2vKc9xH4mWbT1eYpA7sNg3uJd6LoQiC5yXzE0rVhB8nGt2kPw9aMfU1jSe4DcO7lY3xRbK6vHq0ZmT5sLgW2pN8uAiJ…
Why MnemoNotes
Notes are only useful if you can find them again
Most notes get lost in folders you never open. MnemoNotes makes capturing effortless and finding things natural.
Capture in seconds
Press Alt+N and start typing. Tag the note with the people and topics it is about as you go, then save with one shortcut.
Find it the way you remember it
“I talked to Anna about the launch, sometime in spring.” Filter on@Anna, #launch and a date range, or just type words from the note.
On every device, even offline
Your notes live on your device first. Read and write without a connection; changes sync in the background when you are back online.
Privacy
Your notes are sealed before they leave your device
Syncing usually means trusting a company with your data. With MnemoNotes our server only ever receives locked boxes it has no key for.
1 · Your device
Encrypts and signs
Every change is locked with keys that exist only on your devices, and signed so nobody can forge it.
2 · Our server
Stores what it cannot read
It keeps the sealed changes in order and passes them on. It never sees your text, tags, titles or search terms.
3 · Your other devices
Unlock and rebuild
Your phone or laptop unlocks with a passkey, opens the boxes and puts your notes back together, locally.
What we cannot do
We built MnemoNotes so we can’t look
This is not a promise in a policy. It is how the app is built: the keys that open your notes never reach us.
- Read your notes. We only store encrypted data.
- See how you tag and file them. People, topics and folders are encrypted too.
- Search your notes. Search runs on your device; your queries never reach us.
- Hand your notes over. Whoever gets hold of our database gets encrypted data only.
- Slip in fake changes. Every change is signed by the device that made it, and your devices check.
Together
Share with the people you choose
Share a note
Add a contact with a one-time invite link, then share notes with them as an editor or a viewer. They get the key; we don’t.
Shared documents for teams
Keep a team’s decisions in one shared document. New members see its full history; people who leave lose access.
Your data stays yours
Import an Obsidian vault, and export your notes at any time as plain text, JSON or Markdown files. All on your device.
A private place for everything you want to remember
Sign in with Google, save your recovery key, and write your first note.