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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.social/users/concretedog/statuses/114517565659891077", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-16T12:42:58Z", "url": "https://mastodon.social/@concretedog/114517565659891077", "attributedTo": "https://mastodon.social/users/concretedog", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/concretedog/followers", "https://fosstodon.org/users/FreeCAD" ], "sensitive": false, "atomUri": "https://mastodon.social/users/concretedog/statuses/114517565659891077", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-05-16:objectId=998591157:objectType=Conversation", "content": "<p>Something for the weekend? I&#39;m super pleased to have just blogged with the 1st issue of <a href=\"https://mastodon.social/tags/SOURCE\" class=\"mention hashtag\" rel=\"tag\">#<span>SOURCE</span></a>. SOURCE is an idea for where to place articles I&#39;d like to write but that are to difficult for my brilliant paid clients to home. SOURCE is opensource, free (pay as you feel) and I&#39;d LOVE it if you shared my first experimental issue on Computational Fluid Dynamics with <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@FreeCAD\" class=\"u-url mention\">@<span>FreeCAD</span></a></span> that&#39;s on this blog. Ta. <br /><a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://mastodon.social/tags/FreeCAD\" class=\"mention hashtag\" rel=\"tag\">#<span>FreeCAD</span></a> <a href=\"https://mastodon.social/tags/newsletter\" class=\"mention hashtag\" rel=\"tag\">#<span>newsletter</span></a> <a href=\"https://mastodon.social/tags/decentralise\" class=\"mention hashtag\" rel=\"tag\">#<span>decentralise</span></a> <br /><a href=\"https://concretedog.blogspot.com/2025/05/source-issue-1-out-now-computational.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">concretedog.blogspot.com/2025/</span><span class=\"invisible\">05/source-issue-1-out-now-computational.html</span></a></p>", "contentMap": { "en": "<p>Something for the weekend? I&#39;m super pleased to have just blogged with the 1st issue of <a href=\"https://mastodon.social/tags/SOURCE\" class=\"mention hashtag\" rel=\"tag\">#<span>SOURCE</span></a>. SOURCE is an idea for where to place articles I&#39;d like to write but that are to difficult for my brilliant paid clients to home. SOURCE is opensource, free (pay as you feel) and I&#39;d LOVE it if you shared my first experimental issue on Computational Fluid Dynamics with <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@FreeCAD\" class=\"u-url mention\">@<span>FreeCAD</span></a></span> that&#39;s on this blog. Ta. <br /><a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://mastodon.social/tags/FreeCAD\" class=\"mention hashtag\" rel=\"tag\">#<span>FreeCAD</span></a> <a href=\"https://mastodon.social/tags/newsletter\" class=\"mention hashtag\" rel=\"tag\">#<span>newsletter</span></a> <a href=\"https://mastodon.social/tags/decentralise\" class=\"mention hashtag\" rel=\"tag\">#<span>decentralise</span></a> <br /><a href=\"https://concretedog.blogspot.com/2025/05/source-issue-1-out-now-computational.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">concretedog.blogspot.com/2025/</span><span class=\"invisible\">05/source-issue-1-out-now-computational.html</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/517/556/624/214/695/original/b3eae09dd7bce979.jpeg", "name": "A magazine style cover. Diagonally across the middle is an image from a CFD simulation of a Ballute parachute in a virtual wind tunnel created in FreeCAD and post processed in the opensource Paraview. The magazine/newsletter is called SOURCE and there are text details listing the issue number, the month and year as well as a line about how the contents are covering Computational Fluid Dynamics. ", "blurhash": "UCBW3{TK-NSh?c^lX8xs53$*xxs,v{4-$+Sj", "focalPoint": [ 0, 0 ], "width": 595, "height": 842 } ], "tag": [ { "type": "Mention", "href": "https://fosstodon.org/users/FreeCAD", "name": "@FreeCAD@fosstodon.org" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/source", "name": "#source" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/opensource", "name": "#opensource" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/freecad", "name": "#freecad" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/newsletter", "name": "#newsletter" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/decentralise", "name": "#decentralise" } ], "replies": { "id": "https://mastodon.social/users/concretedog/statuses/114517565659891077/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/concretedog/statuses/114517565659891077/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/concretedog/statuses/114517565659891077/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/concretedog/statuses/114517565659891077/likes", "type": "Collection", "totalItems": 57 }, "shares": { "id": "https://mastodon.social/users/concretedog/statuses/114517565659891077/shares", "type": "Collection", "totalItems": 48 } }