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://mastodon.sdf.org/users/jmcunx/statuses/114780918263098237", "type": "Note", "summary": null, "inReplyTo": "https://hachyderm.io/users/pierrenick/statuses/114780769235215927", "published": "2025-07-02T00:57:00Z", "url": "https://mastodon.sdf.org/@jmcunx/114780918263098237", "attributedTo": "https://mastodon.sdf.org/users/jmcunx", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.sdf.org/users/jmcunx/followers", "https://hachyderm.io/users/pierrenick" ], "sensitive": false, "atomUri": "https://mastodon.sdf.org/users/jmcunx/statuses/114780918263098237", "inReplyToAtomUri": "https://hachyderm.io/users/pierrenick/statuses/114780769235215927", "conversation": "tag:hachyderm.io,2025-07-02:objectId=281470288:objectType=Conversation", "content": "<p><span class=\"h-card\"><a href=\"https://hachyderm.io/@pierrenick\" class=\"u-url mention\">@<span>pierrenick</span></a></span> </p><p>I had one of those at work, it was a very nice machine at the time. </p><p><a href=\"https://mastodon.sdf.org/tags/IBMPC300gl\" class=\"mention hashtag\" rel=\"tag\">#<span>IBMPC300gl</span></a> <a href=\"https://mastodon.sdf.org/tags/IBMPC\" class=\"mention hashtag\" rel=\"tag\">#<span>IBMPC</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroComputing</span></a></p>", "contentMap": { "en": "<p><span class=\"h-card\"><a href=\"https://hachyderm.io/@pierrenick\" class=\"u-url mention\">@<span>pierrenick</span></a></span> </p><p>I had one of those at work, it was a very nice machine at the time. </p><p><a href=\"https://mastodon.sdf.org/tags/IBMPC300gl\" class=\"mention hashtag\" rel=\"tag\">#<span>IBMPC300gl</span></a> <a href=\"https://mastodon.sdf.org/tags/IBMPC\" class=\"mention hashtag\" rel=\"tag\">#<span>IBMPC</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroComputing</span></a></p>" }, "attachment": [], "tag": [ { "type": "Mention", "href": "https://hachyderm.io/users/pierrenick", "name": "@pierrenick@hachyderm.io" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/ibmpc300gl", "name": "#ibmpc300gl" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/ibmpc", "name": "#ibmpc" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/retrocomputing", "name": "#retrocomputing" } ], "replies": { "id": "https://mastodon.sdf.org/users/jmcunx/statuses/114780918263098237/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.sdf.org/users/jmcunx/statuses/114780918263098237/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.sdf.org/users/jmcunx/statuses/114780918263098237/replies", "items": [] } } }