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/9757774", "type": "Note", "published": "2025-04-30T12:24:16Z", "url": "https://gnusocial.jp/notice/9757774", "attributedTo": "https://gnusocial.jp/index.php/user/19330", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://gnusocial.jp/user/19330/followers.json" ], "conversationId": "https://gnusocial.jp/conversation/4979789", "conversationUrl": "https://gnusocial.jp/conversation/4979789#notice-9757774", "content": "It looks like even #<span class=\"tag\"><a href=\"https://gnusocial.jp/tag/ice\" rel=\"tag\">ICE</a></span> doesn't want to get on a Greyhound <a href=\"https://gnusocial.jp/attachment/3544b39a136c442276b96ae8f901c21f3fec60179368a7e66e7a2672ac355a58/view\">https://gnusocial.jp/attachment/3544b39a136c442276b96ae8f901c21f3fec60179368a7e66e7a2672ac355a58/view</a>", "isLocal": true, "attachment": [ { "@context": "https://www.w3.org/ns/activitystreams", "type": "Document", "mediaType": "image/webp", "url": "https://gnusocial.jp/attachment/3544b39a136c442276b96ae8f901c21f3fec60179368a7e66e7a2672ac355a58/view", "size": 169700, "name": "1000000888.webp", "meta": { "width": "640", "height": "960" } } ], "tag": [ { "@context": "https://www.w3.org/ns/activitystreams", "name": "ice", "url": "https://gnusocial.jp/tag/ice" } ] }