Your notes still open when the Wi-Fi drops
Spark keeps your pages, notes and boards in your browser, so they open instantly and you can keep editing offline. Changes sync when you reconnect, and while you're online, teammates see each edit within a second.
Free, no credit card. Sign in and start writing.
Keep working with no internet
Spark saves every change on your device first, and a status dot shows you where your work is.
- Offline3 unsynced
You edit offline
Each change saves on this device right away. The dot turns red and counts the changes that haven't synced yet.
- Syncing
You reconnect
The dot turns yellow, and a spinner shows while Spark sends your changes to the cloud.
- All saved
Edits merge
Spark merges everyone's offline edits, down to the character. If two people changed the same words, Spark keeps one version and shows you the other. When it's done, the dot turns green.
Write, plan and track in the same page
One page per project, split into tabs
Give each tab a name and a color. Fill it with headings, lists, to-dos, toggles, quotes, callouts, code, images, video and sub-pages.
Boards and calendars next to your notes
Add a kanban board or a calendar as a block, so your tasks sit beside the notes that explain them.
Edit together, live
While you're online, teammates see each edit within a second. Invite people by email, username, link or a short code, as an owner, editor or viewer.
Go back to any version
Each page records who changed it, when, and whether that version is synced or only on this device. Restore any version you want.
AI actions you write yourself
Make a menu item from a name and a prompt. Select text, run it, and review the AI's changes as a diff before you accept or reject them.
Leave whenever you want
Export any page to Markdown, or your whole workspace to a JSON backup. Bring notes in the same way, from Markdown or JSON.
- Search with Ctrl K or ⌘ K
- Trash with restore
- Dark mode
- Phone and desktop
Spark is free
Spark has no paid plan, no credits and no credit card step. Sign in and you get every feature, AI actions included.
Questions before you start
Yes. Once you've signed in on a device, Spark keeps your whole workspace in that browser. Pages open instantly, and you can read and edit everything offline. Your changes save on the device and sync when the connection returns.
Start with one page
Write something, switch off your Wi-Fi and keep typing. Turn it back on and watch the dot go green.
Free, no credit card. Sign in and start writing.