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/lobsters/statuses/114467321494885524", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-07T15:45:13Z", "url": "https://mastodon.social/@lobsters/114467321494885524", "attributedTo": "https://mastodon.social/users/lobsters", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/lobsters/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/lobsters/statuses/114467321494885524", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-05-07:objectId=991122642:objectType=Conversation", "content": "<p>Warpspeed: Building a record/replay debugger for macOS (2024) <a href=\"https://lobste.rs/s/nmecik\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">lobste.rs/s/nmecik</span><span class=\"invisible\"></span></a> <a href=\"https://mastodon.social/tags/debugging\" class=\"mention hashtag\" rel=\"tag\">#<span>debugging</span></a> <a href=\"https://mastodon.social/tags/mac\" class=\"mention hashtag\" rel=\"tag\">#<span>mac</span></a><br /><a href=\"https://nickgregory.me/post/2024/06/23/warpspeed/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">nickgregory.me/post/2024/06/23</span><span class=\"invisible\">/warpspeed/</span></a></p>", "contentMap": { "en": "<p>Warpspeed: Building a record/replay debugger for macOS (2024) <a href=\"https://lobste.rs/s/nmecik\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">lobste.rs/s/nmecik</span><span class=\"invisible\"></span></a> <a href=\"https://mastodon.social/tags/debugging\" class=\"mention hashtag\" rel=\"tag\">#<span>debugging</span></a> <a href=\"https://mastodon.social/tags/mac\" class=\"mention hashtag\" rel=\"tag\">#<span>mac</span></a><br /><a href=\"https://nickgregory.me/post/2024/06/23/warpspeed/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">nickgregory.me/post/2024/06/23</span><span class=\"invisible\">/warpspeed/</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/debugging", "name": "#debugging" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/mac", "name": "#mac" } ], "replies": { "id": "https://mastodon.social/users/lobsters/statuses/114467321494885524/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/lobsters/statuses/114467321494885524/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/lobsters/statuses/114467321494885524/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/lobsters/statuses/114467321494885524/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mastodon.social/users/lobsters/statuses/114467321494885524/shares", "type": "Collection", "totalItems": 1 } }