NoteSpark
Android and desktop Free and open source #offline

Notes that stay on your devices

NoteSpark is a calm notes app for Android and your computer. Write in plain text or Markdown, keep tasks inside your notes, and find anything by what it means. There's no account and no cloud: everything stays on your device.

Download All downloads View the source

Free and open source (GPLv3). Download the Android APK or the Linux AppImage from GitHub releases. Google Play is coming.

  • No account to create
  • No ads, analytics or tracking
  • Works without an internet connection
  • Search by meaning runs on your device
The desktop app's Home: search, tag filters and pinned notes The desktop app's Home: search, tag filters and pinned notes
The tablet shows the note list and the open note side by side The tablet shows the note list and the open note side by side
A note on the phone, with a checklist and due dates A note on the phone, with a checklist and due dates

See it in two minutes

Writing, tasks, search by meaning, and the same notes on a phone, a tablet and a computer. There is no sound, and everything on screen is captioned.

What it does

Quick to write in, calm to read, and nothing you'd miss from a cloud notes app. Scroll to see each part on a computer, a tablet and a phone.

The desktop app showing a note titled Launch checklist, with ticked and open tasks, due dates and a progress bar The desktop app showing a note titled Launch checklist, with ticked and open tasks, due dates and a progress bar
The tablet showing the note list on the left and the open note, Launch checklist, on the right The tablet showing the note list on the left and the open note, Launch checklist, on the right
A note with tasks and due dates A note with tasks and due dates

  1. Write

    • Plain text or Markdown
      Pick per note, with a preview. Headings, lists and links are on the toolbar.
    • Undo, redo and history
      Every save keeps the version before, with what changed marked.

  2. Tasks

    • Tasks inside your notes
      Start a line with - [ ]. Add due:2026-11-01 for a reminder, or every:week to repeat it.

  3. Find

    • Search by meaning
      A small model on your device finds notes about the same idea, even when the words differ.
    • Links and tags
      Link notes with [[Note title]]; renaming a note updates its links. Filter Home by #tag.
    • Find in a note
      Jump between matches in long notes, straight from a search on Home.
    • Rediscover
      One older note a day on Home, written on this date or close to what you're working on.

  4. Private by design

    • No internet requests
      No accounts, analytics, crash reports or update checks. Optional sync between your own devices stays on your own network.
    • Profiles with a PIN or fingerprint
      Keep Personal and Work apart. Locked profiles are encrypted on your device.
    • Locks again when you leave
      After a minute in the background, a locked profile asks for its PIN.

  5. Never trapped

    • A scratchpad
      One per profile for quick thoughts. File a line as a note when it's ready, or clear it.
    • Markdown in and out
      Export one note or all of them as Markdown. Import Markdown, text or zip files from other apps.
    • Automatic backups
      Daily or weekly to a folder you pick, keeping the last five.
    • Quick capture
      On Android: share text from any app, long-press the icon for New note, or use the home-screen widget.

Download NoteSpark

Pick your device. GitHub releases come first, so you can have it before the stores. Each format says whether it is ready.

  • APK
    Install the file directly. Android may ask you to allow installs from your browser or files app. It does not update itself: download the next version when you want it. It is signed differently from the Play version, so you can't switch between the two without uninstalling first.
    Download
  • Google Play
    Updates through the Play Store, after the GitHub release.
    Coming soon
  • winget
    The easiest way: no extra steps, one command to install and update.
    Planned
  • Installer (.exe)
    64-bit installer.
    Planned
  • Homebrew
    The easiest way: no extra steps, one command to install and update.
    Planned
  • Disk image (.dmg), Apple silicon
    For Macs with M-series chips.
    Planned
  • Disk image (.dmg), Intel
    For Macs with Intel chips.
    Planned
  • AppImage
    64-bit. One file, no install. Mark it executable with chmod +x, then open it. It does not update itself. If it won't start on Ubuntu 22.04 or newer, install libfuse2 or run it with --appimage-extract-and-run.
    chmod +x NoteSpark-*.AppImage && ./NoteSpark-*.AppImage
    Download
  • .deb
    Debian, Ubuntu and relatives.
    Planned
  • .rpm
    Fedora, openSUSE and relatives.
    Planned
  • .tar.gz
    Unpack anywhere. You may need chmod +x on the app file before it opens.
    Planned
  • Docker hub
    A small hub for your home server that would sync your devices and keep every note as a Markdown file. An idea for later.
    Planned

Each release has a SHA256SUMS file so you can check your download. Releases are listed at github.com/Lusan-sapkota/NoteSpark/releases. Nothing is downloaded until you choose to.

Nothing leaves your devices

NoteSpark makes no network requests of its own. The one exception is an image from a web address you add to a note, and only if you turn on Show web images in Settings (off by default): on Android it's downloaded once and kept on your device. Optional sync between your own devices stays on your own network.

Read the privacy policy