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Portable Markdown journal for Android
Author · 2026-06-21 · via Hacker News: Show HN

Your Android phone is the server. Connect over the internet or your local network.

Type comfortably from your browser. Your journal stays with you.

Notedog is a portable, private Markdown journal for Android. Your entries are plain Markdown files you own. Write on your phone, edit from your browser, and back up with Git when you choose.

Core — free: no account, LAN or hotspot browser editing, and Git backup.

Optional tunnel — paid: Google sign-in required; the relay stores limited account metadata but does not persist journal content.

Notedog

Phone-first Markdown journal

Editing

Browser as the editor

Connect from your laptop browser for a bigger screen and a real keyboard.

Storage

Phone as the source of truth

Your Android device stores the journal. No Notedog account or cloud required; internet access is optional.

Ownership

Markdown as the exit plan

Your notes stay as plain Markdown files you can move, back up, or open elsewhere.

Browser editing

Edit from your laptop browser

Pair a desktop browser on your local network and edit the notes stored on your phone — with optional Vim keybindings and automatic dark mode.

Markdown native

Live preview with diagrams and math

A focused editor with live preview — GitHub-flavored Markdown, Mermaid diagrams, LaTeX math, ABC music notation, syntax-highlighted code, and image attachments, on your phone and in the browser. See the formatting guide

Git backup

Back up with Git when you choose

Back up each journal to GitHub, GitLab, Gitea, or your own Git server. Need a GitHub token?

Optional tunnel

Reach your phone from outside your network

Reach your phone from outside your network with the built-in tunnel (a subscription) or Tailscale (free). The tunnel relays access; it does not host your journal. How remote access works

API & AI agents

Connect scripts and AI agents

A small REST API and an MCP server let your own scripts — or an AI agent — read and, when you allow it, write your journal. Connect Claude.ai, ChatGPT, or Claude Code remotely over the tunnel, or local CLI agents with a revocable API key. See MCP · API

Private by default

No account for local use. No analytics anywhere.

Your journal stays on your phone unless you enable Git, browser access, the tunnel, or an AI connection.

Where are my notes stored?

Your entries and attachments are stored in app-specific storage on your Android device. Each entry is a plain Markdown file.

What devices can I edit from?

Any device with a modern browser — a laptop, desktop, tablet, or another phone. Connect over the same local network or a phone hotspot, through Tailscale, or using the optional tunnel.

Does Notedog need an account or internet connection?

No. The core app and local browser editing work without a Notedog account or internet access. Git backup and the remote tunnel need internet access; the tunnel also requires Google sign-in.

How is browser access protected?

Pairing opens for 60 seconds only when you request it and requires approval on your phone. Connections use HTTPS, and you can revoke paired browser sessions from the app.

How can I back up or move my notes?

Export the journal as a ZIP, or back it up to GitHub, GitLab, Gitea, or your own Git server. The exported entries remain ordinary Markdown files.

What is free, and what is paid?

The Android editor, LAN or hotspot browser editing, Git backup, and Tailscale option are free. The built-in HTTPS tunnel is an optional paid subscription; its relay stores limited account metadata but does not persist journal content. See the remote access guide.

Free to start

Start a journal you can keep.

Your phone keeps the journal. Any browser can be your keyboard. No account required for local use.

Get it on Google Play