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", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://fosstodon.org/users/pleiotrope/statuses/114073287444557626", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-27T01:37:10Z", "url": "https://fosstodon.org/@pleiotrope/114073287444557626", "attributedTo": "https://fosstodon.org/users/pleiotrope", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fosstodon.org/users/pleiotrope/followers" ], "sensitive": false, "atomUri": "https://fosstodon.org/users/pleiotrope/statuses/114073287444557626", "inReplyToAtomUri": null, "conversation": "tag:fosstodon.org,2025-02-27:objectId=292446424:objectType=Conversation", "content": "<p>This is Messier 1, the Crab Nebula, a supernova remnant in Perseus ~6,300 light years away.</p><p>The supernova that created it was seen from Earth in 1054 CE as a “guest star”that was well-documented by astronomers. It’s unusually dynamic for a deep space object: images taken a few years apart show it expanding as the filaments move outward at nearly 1,500 km per second. (The wikipedia article on it is a great read!)</p><p><a href=\"https://fosstodon.org/tags/astrophotography\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophotography</span></a> <a href=\"https://fosstodon.org/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://fosstodon.org/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://fosstodon.org/tags/photography\" class=\"mention hashtag\" rel=\"tag\">#<span>photography</span></a></p>", "contentMap": { "en": "<p>This is Messier 1, the Crab Nebula, a supernova remnant in Perseus ~6,300 light years away.</p><p>The supernova that created it was seen from Earth in 1054 CE as a “guest star”that was well-documented by astronomers. It’s unusually dynamic for a deep space object: images taken a few years apart show it expanding as the filaments move outward at nearly 1,500 km per second. (The wikipedia article on it is a great read!)</p><p><a href=\"https://fosstodon.org/tags/astrophotography\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophotography</span></a> <a href=\"https://fosstodon.org/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://fosstodon.org/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://fosstodon.org/tags/photography\" class=\"mention hashtag\" rel=\"tag\">#<span>photography</span></a></p>" }, "updated": "2025-02-27T01:39:39Z", "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://cdn.fosstodon.org/media_attachments/files/114/073/164/570/420/370/original/5dcff1e6dfdde4d8.jpeg", "name": "A nebula in the form of a filamentous ellipse of blue, purple and red is shown against a field of stars and black background. The nebula’s structure resembles a freeze-frame of an explosion.", "blurhash": "U24xiDofEGWUogfRaxaxEGay-as;oIaxj^j]", "width": 1549, "height": 1549 } ], "tag": [ { "type": "Hashtag", "href": "https://fosstodon.org/tags/astrophotography", "name": "#astrophotography" }, { "type": "Hashtag", "href": "https://fosstodon.org/tags/space", "name": "#space" }, { "type": "Hashtag", "href": "https://fosstodon.org/tags/astronomy", "name": "#astronomy" }, { "type": "Hashtag", "href": "https://fosstodon.org/tags/photography", "name": "#photography" } ], "replies": { "id": "https://fosstodon.org/users/pleiotrope/statuses/114073287444557626/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fosstodon.org/users/pleiotrope/statuses/114073287444557626/replies?only_other_accounts=true&page=true", "partOf": "https://fosstodon.org/users/pleiotrope/statuses/114073287444557626/replies", "items": [] } }, "likes": { "id": "https://fosstodon.org/users/pleiotrope/statuses/114073287444557626/likes", "type": "Collection", "totalItems": 16 }, "shares": { "id": "https://fosstodon.org/users/pleiotrope/statuses/114073287444557626/shares", "type": "Collection", "totalItems": 6 } }