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://floss.social/users/fossasia/statuses/114461599391170540", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-06T15:30:00Z", "url": "https://floss.social/@fossasia/114461599391170540", "attributedTo": "https://floss.social/users/fossasia", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://floss.social/users/fossasia/followers" ], "sensitive": false, "atomUri": "https://floss.social/users/fossasia/statuses/114461599391170540", "inReplyToAtomUri": null, "conversation": "tag:floss.social,2025-05-06:objectId=87109176:objectType=Conversation", "content": "<p>🧮 Scientific computing in the browser? Watch Gunj Joshi show how JS can even outperform Python or R in the right setup! Dive into WebAssembly, fast libraries, and the future of math on the web at <a href=\"https://floss.social/tags/FOSSASIASummit2025\" class=\"mention hashtag\" rel=\"tag\">#<span>FOSSASIASummit2025</span></a></p><p>🎥 Watch here <a href=\"https://youtu.be/hHCiinxsnbo\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">youtu.be/hHCiinxsnbo</span><span class=\"invisible\"></span></a></p><p><a href=\"https://floss.social/tags/JavaScript\" class=\"mention hashtag\" rel=\"tag\">#<span>JavaScript</span></a> <a href=\"https://floss.social/tags/WebAssembly\" class=\"mention hashtag\" rel=\"tag\">#<span>WebAssembly</span></a> <a href=\"https://floss.social/tags/OpenSource\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenSource</span></a> <a href=\"https://floss.social/tags/ScientificComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>ScientificComputing</span></a></p>", "contentMap": { "en": "<p>🧮 Scientific computing in the browser? Watch Gunj Joshi show how JS can even outperform Python or R in the right setup! Dive into WebAssembly, fast libraries, and the future of math on the web at <a href=\"https://floss.social/tags/FOSSASIASummit2025\" class=\"mention hashtag\" rel=\"tag\">#<span>FOSSASIASummit2025</span></a></p><p>🎥 Watch here <a href=\"https://youtu.be/hHCiinxsnbo\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">youtu.be/hHCiinxsnbo</span><span class=\"invisible\"></span></a></p><p><a href=\"https://floss.social/tags/JavaScript\" class=\"mention hashtag\" rel=\"tag\">#<span>JavaScript</span></a> <a href=\"https://floss.social/tags/WebAssembly\" class=\"mention hashtag\" rel=\"tag\">#<span>WebAssembly</span></a> <a href=\"https://floss.social/tags/OpenSource\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenSource</span></a> <a href=\"https://floss.social/tags/ScientificComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>ScientificComputing</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://floss.social/tags/fossasiasummit2025", "name": "#fossasiasummit2025" }, { "type": "Hashtag", "href": "https://floss.social/tags/JavaScript", "name": "#JavaScript" }, { "type": "Hashtag", "href": "https://floss.social/tags/WebAssembly", "name": "#WebAssembly" }, { "type": "Hashtag", "href": "https://floss.social/tags/OpenSource", "name": "#OpenSource" }, { "type": "Hashtag", "href": "https://floss.social/tags/scientificcomputing", "name": "#scientificcomputing" } ], "replies": { "id": "https://floss.social/users/fossasia/statuses/114461599391170540/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://floss.social/users/fossasia/statuses/114461599391170540/replies?only_other_accounts=true&page=true", "partOf": "https://floss.social/users/fossasia/statuses/114461599391170540/replies", "items": [] } }, "likes": { "id": "https://floss.social/users/fossasia/statuses/114461599391170540/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://floss.social/users/fossasia/statuses/114461599391170540/shares", "type": "Collection", "totalItems": 4 } }