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.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.social/users/sellathechemist/statuses/114755449968285519", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-27T13:00:04Z", "url": "https://mastodon.social/@sellathechemist/114755449968285519", "attributedTo": "https://mastodon.social/users/sellathechemist", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/sellathechemist/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/sellathechemist/statuses/114755449968285519", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-06-27:objectId=1033814210:objectType=Conversation", "content": "<p>Part one of today&#39;s UCL Open Day. Big crowds. very busy. We have six demonstration stations to talk about ocean acidification and carbon dioxide, fluorescence, magnetism and superconductivity, use of microwaves in synthesis, citizen science and air pollution, and the smells of organic compounds. <br />Fun for all the family. <a href=\"https://mastodon.social/tags/chemistry\" class=\"mention hashtag\" rel=\"tag\">#<span>chemistry</span></a></p>", "contentMap": { "en": "<p>Part one of today&#39;s UCL Open Day. Big crowds. very busy. We have six demonstration stations to talk about ocean acidification and carbon dioxide, fluorescence, magnetism and superconductivity, use of microwaves in synthesis, citizen science and air pollution, and the smells of organic compounds. <br />Fun for all the family. <a href=\"https://mastodon.social/tags/chemistry\" class=\"mention hashtag\" rel=\"tag\">#<span>chemistry</span></a></p>" }, "updated": "2025-06-27T13:01:05Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/chemistry", "name": "#chemistry" } ], "replies": { "id": "https://mastodon.social/users/sellathechemist/statuses/114755449968285519/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/sellathechemist/statuses/114755449968285519/replies?min_id=114756533964760124&page=true", "partOf": "https://mastodon.social/users/sellathechemist/statuses/114755449968285519/replies", "items": [ "https://mastodon.social/users/sellathechemist/statuses/114756533964760124" ] } }, "likes": { "id": "https://mastodon.social/users/sellathechemist/statuses/114755449968285519/likes", "type": "Collection", "totalItems": 16 }, "shares": { "id": "https://mastodon.social/users/sellathechemist/statuses/114755449968285519/shares", "type": "Collection", "totalItems": 11 } }