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://social.heise.de/users/mho/statuses/114732625404041385", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-23T12:15:29Z", "url": "https://social.heise.de/@mho/114732625404041385", "attributedTo": "https://social.heise.de/users/mho", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://social.heise.de/users/mho/followers", "https://www.platformer.news/.ghost/activitypub/users/index", "https://mastodon.social/users/caseynewton" ], "sensitive": false, "atomUri": "https://social.heise.de/users/mho/statuses/114732625404041385", "inReplyToAtomUri": null, "conversation": "tag:social.heise.de,2025-06-23:objectId=12049162:objectType=Conversation", "content": "<p>Another publication has arrived in the <a href=\"https://social.heise.de/tags/Fediverse\" class=\"mention hashtag\" rel=\"tag\">#<span>Fediverse</span></a>:</p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://www.platformer.news/\" class=\"u-url mention\">@<span>feed</span></a></span> (<a href=\"https://social.heise.de/tags/Platformer\" class=\"mention hashtag\" rel=\"tag\">#<span>Platformer</span></a>) is here, thanks to <a href=\"https://social.heise.de/tags/Ghost\" class=\"mention hashtag\" rel=\"tag\">#<span>Ghost</span></a>. Hi <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@caseynewton\" class=\"u-url mention\">@<span>caseynewton</span></a></span> 👋🏼 </p><p><a href=\"https://social.heise.de/tags/SocialMedia\" class=\"mention hashtag\" rel=\"tag\">#<span>SocialMedia</span></a> <a href=\"https://social.heise.de/tags/Media\" class=\"mention hashtag\" rel=\"tag\">#<span>Media</span></a> <a href=\"https://social.heise.de/tags/News\" class=\"mention hashtag\" rel=\"tag\">#<span>News</span></a></p>", "contentMap": { "en": "<p>Another publication has arrived in the <a href=\"https://social.heise.de/tags/Fediverse\" class=\"mention hashtag\" rel=\"tag\">#<span>Fediverse</span></a>:</p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://www.platformer.news/\" class=\"u-url mention\">@<span>feed</span></a></span> (<a href=\"https://social.heise.de/tags/Platformer\" class=\"mention hashtag\" rel=\"tag\">#<span>Platformer</span></a>) is here, thanks to <a href=\"https://social.heise.de/tags/Ghost\" class=\"mention hashtag\" rel=\"tag\">#<span>Ghost</span></a>. Hi <span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.social/@caseynewton\" class=\"u-url mention\">@<span>caseynewton</span></a></span> 👋🏼 </p><p><a href=\"https://social.heise.de/tags/SocialMedia\" class=\"mention hashtag\" rel=\"tag\">#<span>SocialMedia</span></a> <a href=\"https://social.heise.de/tags/Media\" class=\"mention hashtag\" rel=\"tag\">#<span>Media</span></a> <a href=\"https://social.heise.de/tags/News\" class=\"mention hashtag\" rel=\"tag\">#<span>News</span></a></p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://www.platformer.news/.ghost/activitypub/users/index", "name": "@feed@platformer.news" }, { "type": "Mention", "href": "https://mastodon.social/users/caseynewton", "name": "@caseynewton@mastodon.social" }, { "type": "Hashtag", "href": "https://social.heise.de/tags/fediverse", "name": "#fediverse" }, { "type": "Hashtag", "href": "https://social.heise.de/tags/platformer", "name": "#platformer" }, { "type": "Hashtag", "href": "https://social.heise.de/tags/ghost", "name": "#ghost" }, { "type": "Hashtag", "href": "https://social.heise.de/tags/socialmedia", "name": "#socialmedia" }, { "type": "Hashtag", "href": "https://social.heise.de/tags/media", "name": "#media" }, { "type": "Hashtag", "href": "https://social.heise.de/tags/news", "name": "#news" } ], "replies": { "id": "https://social.heise.de/users/mho/statuses/114732625404041385/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://social.heise.de/users/mho/statuses/114732625404041385/replies?only_other_accounts=true&page=true", "partOf": "https://social.heise.de/users/mho/statuses/114732625404041385/replies", "items": [] } }, "likes": { "id": "https://social.heise.de/users/mho/statuses/114732625404041385/likes", "type": "Collection", "totalItems": 11 }, "shares": { "id": "https://social.heise.de/users/mho/statuses/114732625404041385/shares", "type": "Collection", "totalItems": 5 } }