Oren is a local-first personal knowledge system for writers, students, and thinkers. Everything you need — editor, diary, games, and more — private, offline, and entirely yours.
Free and open source · No account required · Your data stays on your device
Your notes live on your disk. Your diary is encrypted with your PIN. Oren never connects to the internet, never asks for an account, never sends your data anywhere. In 2026, that’s radical. We think it should be the default.
Most apps do one thing. Oren does everything — a full Markdown editor, an encrypted diary, a MonkeyType-style typing test, a drawing canvas, a snippet library, nine built-in games, a Pomodoro timer, and a dashboard that tracks your writing streak. All offline. All in one place.
Zen mode hides everything but your words. Split editor lets you reference one note while writing another. Wiki-style [[links]] connect your thoughts. Markdown preview renders as you type. The editor gets out of the way and lets you think.
Had a productive morning. Finished the outline for chapter three and felt good about the direction. The afternoon was slower � kept getting pulled away from the desk...
PIN-protected access. AES-128 encryption on every entry. Mood tracking. Tags. Search. Export. Your diary entries are encrypted on disk — not even Oren can read them without your PIN.
Your dashboard greets you by name, shows your writing streak, surfaces your recent notes, and gives you a quote to start the day. It is designed to make you want to open Oren.
A full MonkeyType-style typing test lives inside Oren. Five modes — time, words, quote, custom, code. Real-time highlighting, personal best tracking, WPM charts. Take a break from writing by getting better at it.
Light or dark, warm or cool. The terracotta leaf stays home on every one.
+ 8 more themes inside the app
Nine games live inside Oren. Offline, no accounts, no ads. Just a way to rest your brain before getting back to work.
The oldest argument on paper. Three in a row — but the AI plays perfectly.
One hidden word. Six guesses. One puzzle a day.
Draw a line without crossing yourself. Simple to start. Impossible to stop.
A wall of bricks. A single ball. Break everything before it hits the floor.
A pattern flashes. Watch it. Remember it. Redraw it.
A minefield disguised as a grid. Reason carefully. Never guess.
Eighty-one cells. Every digit exactly once. A daily puzzle.
A word is hidden. Guess wrong and the scaffold grows.
Seven letters. Every word needs the centre. Find the one that uses all seven.
No account. No cloud. No tracking.
Diary entries are AES-128 encrypted on your disk.
Oren never phones home. Not once.
Download Oren and start building your second brain — locally, privately, today.
v1.0.0 · Windows 10/11 · ~45 MB
Linux build coming soon. macOS under consideration.