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/27140221", "attributedTo": "https://lemmy.ml/u/testman", "to": [ "https://lemmy.ml/c/steam", "https://www.w3.org/ns/activitystreams#Public" ], "name": "The Steam Spring Sale is here!", "cc": [], "mediaType": "text/html", "attachment": [ { "href": "https://store.steampowered.com/news/app/593110/view/520833241446351891", "mediaType": "text/html; charset=utf-8", "type": "Link" } ], "image": { "type": "Image", "url": "https://lemmy.ml/api/v3/image_proxy?url=https%3A%2F%2Fclan.cloudflare.steamstatic.com%2Fimages%2F27766192%2F92a5c2359200e2e890502edba989b7af880be45f.jpg" }, "sensitive": false, "published": "2025-03-13T19:02:13.567094Z", "audience": "https://lemmy.ml/c/steam", "tag": [ { "href": "https://lemmy.ml/post/27140221", "name": "#steam", "type": "Hashtag" } ] }