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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.social/users/anatudor/statuses/114483381772418250", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-10T11:49:33Z", "url": "https://mastodon.social/@anatudor/114483381772418250", "attributedTo": "https://mastodon.social/users/anatudor", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/anatudor/followers", "https://fosstodon.org/users/codepen" ], "sensitive": false, "atomUri": "https://mastodon.social/users/anatudor/statuses/114483381772418250", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-05-10:objectId=993537338:objectType=Conversation", "content": "<p>Someone just hearted this demo I made on <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@codepen\" class=\"u-url mention\">@<span>codepen</span></a></span> back in 2018 and I noticed it still said it only works in Blink browsers.<br /><a href=\"https://codepen.io/thebabydino/pen/BPxYBr\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/BPx</span><span class=\"invisible\">YBr</span></a></p><p>Not anymore! As of the summer of &#39;24, Firefox also supports registering &amp; animating custom properties! So this is now cross-browser! 🎉🥳</p><p><a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</span></a> <a href=\"https://mastodon.social/tags/3D\" class=\"mention hashtag\" rel=\"tag\">#<span>3D</span></a> <a href=\"https://mastodon.social/tags/cssTransforms\" class=\"mention hashtag\" rel=\"tag\">#<span>cssTransforms</span></a> <a href=\"https://mastodon.social/tags/cssTransform\" class=\"mention hashtag\" rel=\"tag\">#<span>cssTransform</span></a> <a href=\"https://mastodon.social/tags/neon\" class=\"mention hashtag\" rel=\"tag\">#<span>neon</span></a> <a href=\"https://mastodon.social/tags/rainbow\" class=\"mention hashtag\" rel=\"tag\">#<span>rainbow</span></a> <a href=\"https://mastodon.social/tags/code\" class=\"mention hashtag\" rel=\"tag\">#<span>code</span></a> <a href=\"https://mastodon.social/tags/coding\" class=\"mention hashtag\" rel=\"tag\">#<span>coding</span></a> <a href=\"https://mastodon.social/tags/frontend\" class=\"mention hashtag\" rel=\"tag\">#<span>frontend</span></a> <a href=\"https://mastodon.social/tags/web\" class=\"mention hashtag\" rel=\"tag\">#<span>web</span></a> <a href=\"https://mastodon.social/tags/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</span></a> <a href=\"https://mastodon.social/tags/dev\" class=\"mention hashtag\" rel=\"tag\">#<span>dev</span></a> <a href=\"https://mastodon.social/tags/webDev\" class=\"mention hashtag\" rel=\"tag\">#<span>webDev</span></a></p>", "contentMap": { "en": "<p>Someone just hearted this demo I made on <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@codepen\" class=\"u-url mention\">@<span>codepen</span></a></span> back in 2018 and I noticed it still said it only works in Blink browsers.<br /><a href=\"https://codepen.io/thebabydino/pen/BPxYBr\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/BPx</span><span class=\"invisible\">YBr</span></a></p><p>Not anymore! As of the summer of &#39;24, Firefox also supports registering &amp; animating custom properties! So this is now cross-browser! 🎉🥳</p><p><a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</span></a> <a href=\"https://mastodon.social/tags/3D\" class=\"mention hashtag\" rel=\"tag\">#<span>3D</span></a> <a href=\"https://mastodon.social/tags/cssTransforms\" class=\"mention hashtag\" rel=\"tag\">#<span>cssTransforms</span></a> <a href=\"https://mastodon.social/tags/cssTransform\" class=\"mention hashtag\" rel=\"tag\">#<span>cssTransform</span></a> <a href=\"https://mastodon.social/tags/neon\" class=\"mention hashtag\" rel=\"tag\">#<span>neon</span></a> <a href=\"https://mastodon.social/tags/rainbow\" class=\"mention hashtag\" rel=\"tag\">#<span>rainbow</span></a> <a href=\"https://mastodon.social/tags/code\" class=\"mention hashtag\" rel=\"tag\">#<span>code</span></a> <a href=\"https://mastodon.social/tags/coding\" class=\"mention hashtag\" rel=\"tag\">#<span>coding</span></a> <a href=\"https://mastodon.social/tags/frontend\" class=\"mention hashtag\" rel=\"tag\">#<span>frontend</span></a> <a href=\"https://mastodon.social/tags/web\" class=\"mention hashtag\" rel=\"tag\">#<span>web</span></a> <a href=\"https://mastodon.social/tags/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</span></a> <a href=\"https://mastodon.social/tags/dev\" class=\"mention hashtag\" rel=\"tag\">#<span>dev</span></a> <a href=\"https://mastodon.social/tags/webDev\" class=\"mention hashtag\" rel=\"tag\">#<span>webDev</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "video/mp4", "url": "https://files.mastodon.social/media_attachments/files/114/483/380/466/327/601/original/63ed63ca11fdc6f0.mp4", "name": "Recording of linked demo. Shows dots rotating around rings set on a torus, the biggest dot leading, followed by ever shrinking ones along half a ring circumference. The rotation is slightly staggered so that there's one full turn difference around the torus.", "blurhash": "U44B|5%KDPVNVtWFbvov00M}%zk%tjtLn4M+", "focalPoint": [ 0, 0 ], "width": 800, "height": 524 } ], "tag": [ { "type": "Mention", "href": "https://fosstodon.org/users/codepen", "name": "@codepen@fosstodon.org" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/css", "name": "#css" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/3d", "name": "#3d" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/csstransforms", "name": "#csstransforms" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/csstransform", "name": "#csstransform" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/neon", "name": "#neon" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/rainbow", "name": "#rainbow" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/code", "name": "#code" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/coding", "name": "#coding" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/frontend", "name": "#frontend" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/web", "name": "#web" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/webdevelopment", "name": "#webdevelopment" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/dev", "name": "#dev" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/webdev", "name": "#webdev" } ], "replies": { "id": "https://mastodon.social/users/anatudor/statuses/114483381772418250/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/anatudor/statuses/114483381772418250/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/anatudor/statuses/114483381772418250/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/anatudor/statuses/114483381772418250/likes", "type": "Collection", "totalItems": 6 }, "shares": { "id": "https://mastodon.social/users/anatudor/statuses/114483381772418250/shares", "type": "Collection", "totalItems": 2 } }