You'll actually remember —
a timeline memo app

Your every day, into just one single line.

The value of a memo isn't in saving it. It's in being able to remember it.
memon is a memo app that weaves your every day into a single timeline. Forget it the moment you write it down — trace the line back, and it'll always be there.

Download for free macOS / Windows / Linux Other downloads
memon
Full-window screenshot of the memon app, showing the timeline, tags, and starred memos exactly as they appear on screen

The lost-memo problem

“Where did I put that note…?”

That idea—the one that came to you at your favorite café, eating avocado toast, chatting with a friend. Being meticulous, you filed it under “Project B.”

But six months later, when you need it—the way in isn’t necessarily “Project B.” Was it B or C? You can’t even recall the name. All you remember is the avocado toast you ate and “sometime around the end of last year.”

The way back to a memory
is often through time.

memon’s timeline places seemingly unrelated memories next to each other on a time axis. Next to the avocado toast photo sits that flash of an idea. Scroll back to “around the end of last year” and the photo becomes a landmark—memories tumble out, one after another.

Hand-drawn illustration: avocado toast on a plate and a half-finished cup of coffee
Actual timeline screen: a café avocado toast memo sits right below the idea that sparked at that moment

Actual screen. Right above the avocado toast memo sits the idea that came to you at that moment.

Why a timeline?

Zero clues? You’ll still find it.

What if you have absolutely no clue? Still fine. A timeline is one-dimensional—no branches, no dead ends. Follow the single line into the past, and you will inevitably pass the memory you seek.

In documents organized into hierarchies and trees, there’s no guarantee you’ll find it. The more “candidates” for where to look, the more lost a memory becomes. This is the unique strength of raw records, written as they happened, in the order they happened.

Writing is fast, too

Inspiration evaporates in 3 seconds.

memon lives in your system tray, and a single shortcut opens a new memo. No title needed. No folder prompt. No “which project?” either.

Write even one character, and it’s saved to your timeline. Drop in a photo—that works too. A fragment is enough; capture it before it evaporates.

Organize later. Or don’t organize at all.

Actual compact new-memo window. Start writing from the body—no title required

A place just for you

Completely private. So you can write honestly.

You can’t focus on raw memory in a space where others might see. The moment you think “someone might read this,” your writing puts on a mask. All memon notes are stored as Markdown files on your local disk.

Local storage

All data stays on your disk. Even if the service shuts down, you’ll never lose access to your memories.

P2P device sync

Sync happens over encrypted P2P on your local network. Your notes travel only between your own devices.

No sharing feature

Deliberately omitted. We removed the worry of “did I leave sharing on?” from the design itself.

Working with AI

Choose what AI can read.

Notes are standard Markdown files—the most convenient format for giving AI your full context.

Things you’d rather keep hidden go in sensitive memos—body text is encrypted on disk, invisible even to AI. We recommend putting words from AI or articles in quote blocks. The trick is keeping them separate from your own words.

Around the timeline

Everything you need to remember, in one place.

System trayGlobal shortcut for a new memo anytime
Markdown / localStandard .md files stored in a local folder
Full-text searchFilter by tags, dates, and checklists
Tags & starsAuto-picks #tags from the body text for filtering
[[wikilink]]Cross-link memos and pages
PagesHierarchical documents alongside the timeline
Sensitive memosBody text encrypted with a device-local key
P2P device syncEncrypted communication, no central server
Export / ImportTake out or restore all memos as ZIP
Auto-saveNo save button. Write, and it stays
Dark modeFollows OS appearance automatically
14 languagesJapanese, English, and more. RTL supported
Fully offlineEvery core feature works without an internet connection

Pricing

More casual than a cup of coffee.

Start free. Every core feature works, and you can always browse the last month of your timeline. When your memories grow and you can’t let go—

Free ¥0 All core features. Read memos from the last month anytime (older ones are blur-masked). Download
Recommended Monthly ¥200/mo All your memories, forever. Past memo reading + device sync. Cancel anytime. Annual plan: ¥2,000/year (save 2 months) Start free, choose later
One-time ¥8,000 For those who’d rather not subscribe. A single payment for all features, no recurring charges. Download

All paid plans grant the same rights. Try the free version first.

Today becomes your oldest day.

Your timeline only reaches as far back as you start. For the future you who’ll want to remember—write the first line.

Download for free macOS / Windows / Linux