A quiet home for your thinking

Write in Markdown. Sync everywhere. Think clearly.

Download for Mac
Open web app

This weekend

A slow one, for once.

To do
#life#weekend
Private by designLocal-firstOn Mac, iPhone, iPad & Web

The writing page

Rooooooom to write.

Real headings, generous margins, and clean Markdown underneath. Nothing between you and the sentence you're chasing.

This quarter
Finalise the sync protocol
Launch the MCP server
$ npx @caliu-notes/mcp

#tags, not folders

Ideas overlap.

One note can belong to many places. Nest them, colour them, find them by feel.

Tags
work
roadmap
sprint
ideas
reading
type # and just keep writing

Always with you

Here. There. Everywhere.

Local-first, and in sync the moment you look away. Start on your Mac, finish on your phone. Pin a reminder to any note and the nudge finds you wherever you are.

MacBook Pro
Up to date
iPhone 15
Up to date
Web
Up to date
Synced just now
Mac, iPhone, iPad & Web

Private by design

Your notes are nobody's business.

Caliu keeps your notes on your device first, syncs them encrypted, and never sells a word.

How we treat your data

Hands-free

Pro

Just talk. It writes itself.

Tap the mic and think out loud. Caliu transcribes, trims the filler words, and turns it into clean Markdown: real headings and lists, not a wall of text.

Listening…
Groceries
Oat milk
Sourdough
Coffee beans
In any language

Make it yours

Pro

A mood, not a menu.

Ten hand-crafted palettes, light and dark. Pick the one that matches the hour.

Version history

Pro

Long-term memory.

Caliu keeps snapshots as you write. Scroll back through a note's life, preview any moment, and bring it back in a tap.

Chapter three
Just nowCurrent
Yesterday 18:42Restore
Mon 09:15Restored
12 JunCreated

API & MCP

Pro

Notes
that talk back.

A proper JSON API, an MCP server, and every note reachable by your tools. Let Claude or Cursor read, write, and organise on your terms.

GET/notes
POST/reminders
GET/tags
DELETE/notes/:id
Explore the API

Price

Help support Caliu's development and unlock extra features.

Free

  • Local-first notes
  • Sync across devices
  • Export to TXT and Markdown
  • 2 themes and the system font
  • 1 GB of attachments
  • Voice dictation
  • Note version history
  • API access and connected apps

CaliuPro

  • Local-first notes
  • Sync across devices
  • Export to PDF, HTML, RTF, ePub + bulk
  • All themes, fonts and app icons
  • Unlimited attachments
  • Voice dictation
  • Note version history
  • API access and connected apps

Includes a free trial, then

$1.99/mo$17.99/yr-25%

We aim to set a fair price for Caliu Pro to fund regular updates and future development.

The yearly saving may vary with your country's currency and taxes.

Need a hand?

The help center covers every corner of Caliu, from your first note to tags, sync, and reminders.

Browse the help center