gstbmp

A browser extension for Firefox, Chrome and Edge

Draw on any web page.
Only your ghosts see it.

Pen, highlighter, notes and arrows on top of any site. Live, with the people you choose: everyone, your group, or just the friend you sent a link to.

Free. No account needed to draw in public or join a session.

Who sees what

You pick the layer. The page never knows.

Public

The default. Anyone with GhostBump on the same page sees your posts, votes, and comments. Hover a drawing to see who made it.

No account needed.

Groups

Make a group, invite people, switch into it from the toolbar. Everything the group draws stays inside it, on every site. Roles, moderation, and a page of its own.

Create an account to start one.

Sessions

One click makes a private room and a link. Send it to one person or twenty. They join with or without an account and you see each other's ink for as long as you like.

Start one from the toolbar or your dashboard.

Made for real work

Notes that keep their history.

Review a spec, a live site, a competitor's page, a Google Doc. Leave notes and arrows where the problem is, not in a separate thread.

  • Notes and arrows Multi-line sticky notes you can edit and move. Arrows that point at the exact thing.
  • Revision history Every edit keeps the previous version. Deleted drawings can be restored from the activity log.
  • Resolve and reopen Mark a post done when it is handled. Moderators can remove anything.
  • Presence See who is on the page with you, right in the toolbar.

Activity · Finance team

  1. Dana edited a note on intranet.acme.com/finance/q3-review
    2 min ago
  2. Sam resolved a post on intranet.acme.com/finance/q3-review
    9 min ago
  3. Lee deleted a note on docs.google.com/document/d/1xK…
    1 h ago
    Restore
  4. Sam joined by invite
    yesterday

Quick invite

Send a link. They are drawing with you in ten seconds.

A session link opens on gstbmp.com, hands itself to the extension, and switches it in. No sign-up screen in the way.

gstbmp.com/j/7KQ2M9XA Copy link

Get the ghost.