About Seams

Seams is an open social annotation tool built on AT Protocol. It's an experiment in collaborative knowledge-building, inspired by tools like Hypothesis, but designed for the decentralized web.
We believe strongly that new tools that respect their users, and allow them to work together can bring around more positive futures

Why AT Protocol?

• You own your content - Your annotations are stored in your AT Protocol Personal Data Server (PDS), which in most cases is hosted by Bluesky. If Seams shuts down, all your annotations remain accessible.
• It's portable - Your data can move with you. If you switch PDS providers, Seams continues to work with your annotations.

Get Started

To start using Seams, you'll need:

• An AT Protocol account (most likely a Bluesky account)
• The Seams browser extension (available for Chrome and Firefox)
• Or, simply paste any URL into the search bar on the home page to annotate without installing anything using our proxy.

Once installed, simply highlight text on any webpage and add your annotation. Your insights become part of the collective knowledge layer.

Privacy

...or "We don't want you data"

• Your annotations are yours - They're stored in your AT Protocol Personal Data Server (PDS), which you control. We don't own and won't try to sell your data.
• Public by default - Annotations you create are publicly visible to anyone who visits the same page or finds them through our feed. This is a social annotation tool, not a private archive. When AT Protocol introduces more granular privacy controls, we will adopt their approach.
• What we collect - The app indexes annotations from your PDS for display. We cache profile information (handle, display name, avatar) for performance. We don't track your browsing behavior or use analytics that can personally identify you.

Contact

Questions or feedback? Reach out to @sealight.xyz on Bluesky.