Book the machiyaNov 7
Buy Sagano train ticketsToday, 9:00
Send the budget to MiaNov 12
Pack layers for cold mornings
To-dos with due dates
Dated to-dos from every page gather in one list, with reminders that arrive on time.
Coming soon to iPhone and iPad
Living documents,
written together.
Leaflet keeps your notes, plans and meeting records as pages of blocks, and lets AI agents work in them beside you. Every edit is a step you can undo, and every page lives on your device first.
Coming soon to theApp StoreDownload forMac & Windows
iPhone and iPad with iOS 26 · Mac and Windows · Open source
On your device first
Pages save locally and work offline.
Every agent edit undoable
One step back, after a history snapshot.
Your models, your keys
Cloud providers, a ChatGPT plan, or local.
Open source
MIT licensed, built in the open.
Write
A page for everything you keep.
A block editor of Leaflet’s own. Type Markdown as you go, press / for any block, and @ to mention a page or an agent.
12:48
- 0:00Why Kyoto in November
- 2:14Arashiyama before the crowds
- 6:30Fushimi Inari at dawn
- 10:05Where to eat in Gion
Videos with notes
YouTube, Vimeo, Bilibili and more play in the page. A time in the notes plays that moment.
Cost per person
Tables and charts
Keep the numbers in a table, and see them in a chart.
Python
def per_person(total, people):
return total / people
# Split the trip three ways
print(per_person(2865, 3)) # 955.0Code
Syntax highlighting for the languages you write in.
KansaiArashiyamaKiyomizuFushimi
Math and diagrams
Equations, flowcharts, mind maps and timelines.
/
Any block, a keystroke away
Headings, callouts, toggles, embeds, link cards, pictures, files and recordings.
- Before Claude’s editToday, 10:42
- Final planNamed · Yesterday
- AutosaveYesterday, 18:05
Day 2 · Kiyomizu-dera, Ninenzaka, Gion at night
Day 2 · Kiyomizu-dera, Ninenzaka, an afternoon off
Page history
Named versions, and what changed since any of them, inline or side by side.
- Nested pages and folders
- Templates
- Tags
- Search across everything
- Callouts and toggles
- Link cards and embeds
- Pictures, PDFs and files
- Links to any block
- Outline
- Export to Markdown and PDF
Agents
Ask an agent, right where you write.
An agent reads the page and edits it with validated tools, its changes streaming in as you watch. Ask one in any of four places.
Claude turn this into a checklist
Inline
Type @ and an agent’s name on any line, and say what you need.
Day 2 · Kiyomizu-dera, Ninenzaka, Sannenzaka and Gion at night, all in one afternoon.
From a selection
Pick some text and ask about just that: explain it, tighten it, translate it.
What’s still undecided here?
read_pageTwo things: where to eat on day two, and whether to take the Sagano train both ways.
Ask the agent…
In the side chat
Talk the page through, and come back to its past conversations.
ClaudeA little. I moved Gion at night to day three and left the afternoon free.
In a comment thread
Mention an agent in a comment on any block, and it answers in the thread.
Validated tools
Agents edit through tools such as read_page, insert_blocks and replace_block, each call checked before it touches the page.
One step to undo
A history snapshot is saved first, and the whole run comes back with a single Undo.
The web, on your terms
Agents read web pages and search only where you let them. Once a run has read your other pages, the web is closed to it.
The workspace agent
Choose All pages and an agent works across your library: it finds and reads pages, makes, moves, renames and tags them, and makes folders, each change undoable.
Video notes from what’s said
Ask for a YouTube or Vimeo video’s notes, and the agent reads its captions and writes them with the time of each moment.
Models
Bring your own model.
Use the providers you already pay for, sign in with your ChatGPT plan, or run agents offline on a computer on your own network.
Sign in
- ChatGPT Plus
- ChatGPT Pro
Agents use your plan. The sign-in stays on this device.
Cloud providers
- OpenAI
- Claude
- xAI
- OpenRouter
- DeepSeek
- GLM
- Any OpenAI-compatible endpoint
With your own key, kept in your device’s keychain, or in your own Leaflet server when you sync through one.
On your network
- Ollama
- LM Studio
- llama.cpp
- vLLM
Models on a computer of your own, so agents work without the internet.
Record
Press the Action Button. Start talking.
Record Voice Note starts a recording in a page of its own, without opening the app. Press again to stop.
- Action Button
- Control Center
- Lock Screen
- Siri
- Live on the Lock Screen
- A Live Activity keeps the time, Pause and Stop on the Lock Screen and in the Dynamic Island, and recording goes on with the screen locked.
- Transcribed your way
- On your iPhone with the system’s own speech recognition, offline and with no key; in real time through Soniox or any OpenAI-compatible endpoint; or with speakers through MOSS.
- Plays along
- The line being said lights up. Any speed, 15-second skips, and controls in Control Center and on the Lock Screen.
- Yours to keep
- Name the speakers, correct a line, or have an agent summarize it all. Share the audio as WAV and the transcript as text, SRT or WebVTT.
Sync
Yours first. Everywhere second.
Every page is saved on your device before anything else, so Leaflet works on a plane. When you want your pages elsewhere, you choose how they travel.
-
Always
On this device
Pages, files and recordings are saved to a database on your iPhone, iPad or computer. No account needed.
-
No server
iCloud Drive
Your devices sync through a Leaflet folder in your own iCloud Drive. No sign-in, and nothing in between.
-
Your own server
Leaflet server
Continue with Supabase, and your pages sync through a project in your own Supabase account. Changes from another device show up as they’re saved.
Edits made apart merge block by block. If two collide, Leaflet tells you, and keeps the other version one tap away.
iPhone and iPad
Made for the devices in your hand.
Leaflet for iPhone and iPad runs the same core as the desktop app, with everything you’d expect of an app made for them.
Windows on iPad
Open any page in a window of its own, beside another.
Keyboard shortcuts
The desktop’s shortcuts, listed in the iPad’s menu bar.
Reminders that get through
Dated to-dos arrive as Time Sensitive notifications that open the to-do.
Live Activities
A recording’s time, Pause and Stop on the Lock Screen and in the Dynamic Island.
Quick Look
Pictures, PDFs and text open in the page, and Quick Look shows the rest.
Themes and accents
Light, dark and sepia, a choice of accents, and the text size you like.
Three languages
English, 简体中文 and 日本語, following your system or chosen in Settings.
Take it all with you
Export a page as Markdown or PDF, or every page at once.
Mac, Windows and terminal
At your desk, and in your terminal.
Leaflet for Mac and Windows draws its whole interface natively on the GPU, with no web view. Agents outside the app work on your pages through leaflet mcp, and the leaflet command finds, reads and adds to them from any script.
- Claude Code
- Claude Desktop
- Codex
- Cursor
- VS Code
macOS 13 or later, on Apple silicon or Intel · Windows on x64 or arm64
zsh
# Let Claude Code work on your pages
$ claude mcp add -s user leaflet -- leaflet mcp
# Send a build log to a page
$ make test 2>&1 | leaflet append "CI log"
# Start a page from a file
$ leaflet new "Meeting notes" --folder Work --stdin < notes.mdOpen source, under the MIT License.
Leaflet is written in Go with MyGo, in the open. Read every line, report an issue, or build it yourself.
View on GitHubFAQ
Questions, answered.
Do I need an account?
No. Leaflet works on your device with no sign-in at all. iCloud sync needs only iCloud Drive, and syncing through a Leaflet server needs a Supabase account of your own.
Can the people who make Leaflet read my pages?
No. Your pages stay on your device, in your iCloud Drive, or in a Supabase project of your own, and none of them pass through a server of ours. Leaflet has no analytics and no ads. The Privacy Policy has the details.
What does an agent send, and to whom?
Your request and the page go to the model provider you chose for that agent, and to no one else. With “Let agents read your other pages” on, it can read those too. A model on your own network keeps all of it at home.
Which AI models can I use?
Any OpenAI-compatible provider: presets for OpenAI, Claude, xAI, OpenRouter, DeepSeek and GLM, a ChatGPT Plus or Pro sign-in, custom endpoints, and local servers such as Ollama, LM Studio, llama.cpp and vLLM.
Does it work offline?
Yes. Everything is saved on your device first and syncs once you’re back online. With a model on your own network and transcription on the device, agents and recordings work offline too.
What do I need?
An iPhone or iPad with iOS or iPadOS 26 or later, a Mac with macOS 13 or later, or a Windows PC on x64 or arm64.
How do I sync my iPhone and iPad?
For iCloud, turn on iCloud sync in Settings › Sync and storage and choose the Leaflet folder in iCloud Drive. For a Leaflet server, set it up in Leaflet on a Mac or PC first, then Continue with Supabase on your iPhone or iPad.
Start your first page.
Leaflet for iPhone and iPad is coming soon to the App Store. On a Mac or PC, you can start today.
Coming soon to theApp StoreDownload forMac & Windows
iOS and iPadOS 26 or later · macOS 13 or later · Windows on x64 or arm64
You@Claude is day two too packed?