ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

Open in browser →
{ "@context": "https://www.w3.org/ns/activitystreams", "id": "https://gnusocial.jp/object/note/9965762", "type": "Note", "published": "2025-05-20T20:30:00Z", "url": "https://gnusocial.jp/notice/9965762", "attributedTo": "https://gnusocial.jp/index.php/user/139179", "to": [ "https://www.w3.org/ns/activitystreams#Public", "https://libranet.de/profile/fu" ], "cc": [ "https://gnusocial.jp/user/139179/followers.json" ], "conversationId": "https://gnusocial.jp/conversation/5069494", "conversationUrl": "https://gnusocial.jp/conversation/5069494#notice-9965762", "content": "Thank you. Things improve and are getting better. Monday consultation went well, lasering and icing seem successful.", "isLocal": true, "attachment": [], "tag": [ { "@context": "https://www.w3.org/ns/activitystreams", "type": "Mention", "href": "https://libranet.de/profile/fu", "name": "fu@libranet.de" } ], "inReplyTo": "https://libranet.de/objects/0b6b25a8-1468-292d-a596-cf4308690969" }