Keepsake is a note-taking app that stays out of your way. Write in markdown, organize with collections and daily notes, and find anything instantly — all in a GPU-rendered interface that never makes you wait, backed by plain files that stay yours.
Keepsake covers the whole loop — capture, organize, and revisit — without the bloat of a "knowledge management system."
No modes to switch, no "source vs. preview." Type markdown and it becomes rich text as you go — headings, lists, links, code — with a GPU-rendered editor locked to your display's refresh rate. Typing feels instant, not just "fine."
Highlight any passage and leave an internal note right beside it. Your commentary stays attached to the text it belongs to.
A built-in calendar sidebar surfaces each day's note alongside your library, so journaling and reference live in one place.
Group related notes into collections and folders. Star the ones you come back to often for one-click access.
Eight color palettes in light and dark, tuned for real contrast — long sessions stay comfortable.
Native apps for macOS and Windows, plus an installable web app that works offline — the same library, wherever you write.
Open Keepsake and you're already typing. No blank-screen ritual, no filing decisions to make first — structure can come later, when the note has earned it.
Daily notes give every day a page. Write now, decide where it belongs later.
Highlight, annotate, tag, and group into collections as the material becomes clear.
Instant search and the calendar sidebar bring anything back the moment you need it.
Pick your platform. Keepsake is free and your notes are stored as plain files on your own device — no account, no sync required.
A native drag-to-Applications install. Runs at your display's full refresh rate.
Download .dmgNot notarized yet — if Gatekeeper blocks the first launch, right-click the app and choose Open.
A lightweight per-user installer — no admin rights needed. Adds a Start Menu shortcut.
Download installerNot code-signed yet — SmartScreen may warn on first run; choose More info → Run anyway.
Runs entirely in your browser via WebAssembly. Install it as an app for offline use — no download needed.
Open Keepsake WebInstall: use your browser's Install app option in the address bar or menu.
Your notes live on your device — not on someone else's server — as plain markdown files you can open anywhere. Uninstalling Keepsake never touches them; they stay put until you decide otherwise.