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/31534565", "attributedTo": "https://lemmy.ml/u/yogthos", "to": [ "https://lemmy.ml/c/programmerhumor", "https://www.w3.org/ns/activitystreams#Public" ], "name": "Estimates", "cc": [], "mediaType": "text/html", "attachment": [ { "href": "https://peertube.mesnumeriques.fr/w/cHJR5yxLtZRjnPDPkbyUoH", "mediaType": "text/html; charset=utf-8", "type": "Link" } ], "image": { "type": "Image", "url": "https://lemmy.ml/api/v3/image_proxy?url=https%3A%2F%2Fpeertube.mesnumeriques.fr%2Flazy-static%2Fpreviews%2F0d5b2d72-e14d-44b2-8de0-b5a4485f9edb.jpg" }, "sensitive": false, "published": "2025-06-11T18:43:16.679417Z", "language": { "identifier": "en", "name": "English" }, "audience": "https://lemmy.ml/c/programmerhumor", "tag": [ { "href": "https://lemmy.ml/post/31534565", "name": "#programmerhumor", "type": "Hashtag" } ] }