Every note now keeps a full, attributed history. See at a glance whether you or an AI agent made the last edit, open the complete revision history, and revert to any earlier version in one click. Deletes go to a recoverable Trash instead of vanishing.
Every note now shows whether it is current, stale, or retired, so Claude and ChatGPT stop treating an old note as fact. Mark a note verified in one click, and your AI can give a note a review date so it flags itself.
Export a folder, a team space, or your whole brain as an Open Knowledge Format bundle: portable Markdown any AI agent can read. Then import OKF bundles right back. Your knowledge now travels both ways.
When two people save the same note at once, the second no longer silently overwrites the first. Same when you and Claude or ChatGPT touch the same note. You'll see a conflict screen with what changed and three ways to resolve it.
Enterprise teams can now turn on an audit log that records every view, edit, and access change across web, REST API, MCP (Claude / ChatGPT), public links, and SCIM.
Tick the notes you want and run one action on all of them. Move surfaces any index notes that reference what you moved, and most actions undo with one click.
Your AI can now insert, replace, or delete a single snippet without rewriting the whole note.
Continue with GitHub. Sign in with the account you already use, no password.
Turn any folder into a read-only public page. Sub-folders, notes, and attachments come with it. No sign-up for whoever you send the link to.
Continue with Google. Create or link your account in one click, no password.
Note lists now show an excerpt and tags, not just a title.
Bring an Obsidian vault or any folder of Markdown files into Hjarni. Folders, frontmatter, wiki-links, and attachments come with it.
See how your notes connect. A new graph view shows linked notes, hub topics, and orphan notes across personal and team spaces.
Four changes that cut the most common waste when Claude or ChatGPT edits your notes.
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Works with Claude and ChatGPT today.