New Personal Editable Brain Organizer

Plain‑text notes,
beautifully native.

Pebo is a markdown‑first, local‑first notes app for people who love plain text. Write real Markdown, organize with tags, draw diagrams — and keep everything as ordinary .md files in a folder you control.

Free & source‑available No account required Works offline
Pebo's three‑pane workspace in dark theme: sidebar with a nested tag tree, the note list, and a Markdown editor showing a note titled Welcome to Pebo. Pebo's three‑pane workspace in light theme: sidebar with a nested tag tree, the note list, and a Markdown editor showing a note titled Welcome to Pebo.
37
Curated themes
376
Tag icons
5
Export formats
100%
Your own files
Features

Everything you need to think in text

A focused writing surface with real Markdown power — and not a single thing that gets between you and your words.

A real Markdown editor

Foldable headings, bold and italics, links, bullet and numbered lists, task lists, blockquotes, tables, images, and rules. Plain text always stays the source of truth.

# Release checklist
 
- [x] Tag the build
- [ ] Update the changelog
 
#work #release

Diagrams, natively

Mermaid flowcharts and sequence diagrams render directly on a Compose canvas inside your note — no browser, no internet round‑trip.

Start Build Ship

Tags that pop

Inline #tags with a nested tag tree, plus 376 named icons so your important tags stand out.

#work #project/pebo #ideas

Command palette

Create notes, switch filters, open settings, and jump around — all from the keyboard.

CtrlK

Export anywhere

Send any note to HTML, PDF, DOCX, JPG, or PNG. Relative images resolve against your notes folder.

HTML PDF DOCX JPG PNG

Outline with focus

Structure long notes with headings, collapse the sections you are not working on, and dim everything but the current block.

Local‑first & offline

Notes load and save straight from the filesystem. No account to start, no server to run — online or off.

Built for flow

A three‑pane workspace that stays out of the way

  • Nested tag tree. Branch tags like #project/pebo/ui and navigate your whole library from the sidebar.

  • Tables, task lists & code. Rich Markdown blocks survive every round‑trip, verbatim.

  • Syntax‑highlighted snippets. Paste code and a compact multi‑language lexer lights it up.

  • Pin, filter & restore. Pin notes, filter by All, Untagged, a tag, or Trash, and restore anything.

Pebo in dark theme: a nested tag tree in the sidebar, a list of notes with connector lines, and a Markdown note open in the editor. Pebo in light theme: a nested tag tree in the sidebar, a list of notes with connector lines, and a Markdown note open in the editor.
Themes

37 themes. Every one in light and dark.

Curated palettes across Signature, Classics, Nature, Warm, Vibrant, and Light groups. Each ships a full light and dark scheme — set the app to Light, Dark, or System independently.

Midnight
Obsidian
Nord
Dracula
Tokyo Night
Gruvbox
Solarized
Catppuccin
Rosé Pine
Forest
Deep Ocean
Synthwave
Pebo's Appearance settings: a Light/Dark/System mode switch and a grid of theme cards including Midnight, Obsidian, Carbon, Graphite, and Slate.
Storage

Bring your own storage

Your notes are plain Markdown on disk — no proprietary database, no lock‑in. Choose where they live in Settings → Storage.

Active

On this device

Notes saved as .md files in a local folder you pick.

Active

Any folder you choose

Already have a folder of .md files? Pebo adopts them and edits in place.

Built

OneDrive

OAuth PKCE, secure token storage, and two‑way sync — add a client ID to enable.

Built

Google Drive

Same sync engine as OneDrive — add a client ID to enable.

Apple

iCloud Drive

Reserved for iOS and macOS, where Apple entitlements apply.

Pebo never moves or rewrites your files behind your back.

One core, every device

Native apps, shared foundation

Pebo is one Kotlin Multiplatform + Compose codebase — so the same core ships toward native apps instead of a heavy web wrapper.

WindowsAvailable now macOSAvailable now LinuxAvailable now iOSPlanned iPadPlanned AndroidAvailable now

Version 1.0.0 · free & source‑available · all downloads & release notes

Source‑available

Read the source. Own your words.

Pebo is published under the Functional Source License (FSL‑1.1‑ALv2). Read the code, self‑host it, modify it, and contribute back. Every release automatically becomes Apache‑2.0 two years after it ships.

Start writing in plain text today

Clone the repo, run one Gradle command, and point Pebo at a folder. Your notes are yours — portable, offline, and future‑proof.