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.

Open in browser →
{ "@context": [ "https://join-lemmy.org/context.json", "https://www.w3.org/ns/activitystreams" ], "type": "Page", "id": "https://programming.dev/post/29831355", "attributedTo": "https://programming.dev/u/Pro", "to": [ "https://sh.itjust.works/c/cybersecurity", "https://www.w3.org/ns/activitystreams#Public" ], "name": "\"Mirai\" Now Exploits Samsung MagicINFO CMS (CVE-2024-7399)", "cc": [], "mediaType": "text/html", "attachment": [ { "href": "https://isc.sans.edu/diary/rss/31920", "mediaType": "text/html; charset=utf-8", "type": "Link" } ], "image": { "type": "Image", "url": "https://isc.sans.edu/images/logos/isc/large.png" }, "sensitive": false, "published": "2025-05-06T08:05:02.593095Z", "language": { "identifier": "en", "name": "English" }, "audience": "https://sh.itjust.works/c/cybersecurity", "tag": [ { "href": "https://programming.dev/post/29831355", "name": "#cybersecurity", "type": "Hashtag" } ] }