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://join-lemmy.org/context.json", "https://www.w3.org/ns/activitystreams" ], "type": "Page", "id": "https://lemmy.ml/post/31781599", "attributedTo": "https://lemmy.ml/u/yogthos", "to": [ "https://lemmy.ml/c/programmerhumor", "https://www.w3.org/ns/activitystreams#Public" ], "name": "JavaScript programming", "cc": [], "mediaType": "text/html", "attachment": [ { "type": "Image", "url": "https://lemmy.ml/pictrs/image/d2970683-ff50-419f-b225-8c635c24b9f1.jpeg", "name": null } ], "image": { "type": "Image", "url": "https://lemmy.ml/pictrs/image/d2970683-ff50-419f-b225-8c635c24b9f1.jpeg" }, "sensitive": false, "published": "2025-06-16T15:06:04.788138Z", "updated": "2025-06-16T15:29:46.940132Z", "language": { "identifier": "en", "name": "English" }, "audience": "https://lemmy.ml/c/programmerhumor", "tag": [ { "href": "https://lemmy.ml/post/31781599", "name": "#programmerhumor", "type": "Hashtag" } ] }