How Braid Sync works

1. You nominate what is shared

In each profile, you mark bookmark folders and named tab groups as shared. Nothing else is read. This is the whole permission model: the extension's reach is the list you wrote, and you can shorten it at any time.

2. Each profile sends titles and URLs

On sync, the extension sends the titles, URLs and folder or group names of the nominated items to your private sync registry, along with a record of anything you deleted since the last run. It does not send cookies, session tokens, passwords, page content, form entries or browsing history — those never leave the browser.

3. The registry merges

The registry holds one merged picture of each shared folder and group. Additions from any profile are kept. Deletions are stored as explicit removals rather than as gaps, so a profile that has not synced for a week cannot resurrect something you removed deliberately.

4. Every profile pulls the result

Each profile then applies the merged state to its own bookmark tree and tab groups. New tab groups arrive collapsed with their tabs unloaded, so receiving a large group costs no memory until you open it.

When syncing runs

• Automatically in the background, weekly.
• Immediately whenever you click Sync now in the extension.
• On catch-up when a machine comes back online after being off.

What this design deliberately excludes

Braid Sync is not a session manager, a password tool or an analytics product. It does not observe pages you visit and has nothing to sell. The full data inventory is on the security page, and the legal commitments are in the privacy policy.