Limestone is open-source and free for your personal notes — forever. You only pay when you collaborate, and even then the price is for working together, not for access to your own data.
Everything you need for your own notebook, at no cost.
For teams and labs sharing notes together.
Shared plans go live alongside the first public release. Personal use is, and will stay, free.
Yes — free forever for your own notes. Limestone is open-source; you can even run it yourself. We charge only for shared collaboration.
Shared vaults across a team, billed per person who collaborates. It's the cost of working together — never a fee to reach your own notes.
You keep every file. Your notes are ordinary Markdown and standard files on your own storage — there's nothing to be locked out of.
No. Files stay on your terms and we never read them. AI edits are proposals you review and approve; nothing is uploaded without a destination you control.
Your notebook, in formats that outlive their tools.