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/114296277014787581", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-07T10:46:21Z", "url": "https://mastodon.social/@anatudor/114296277014787581", "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/114296277014787581", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-04-07:objectId=966066067:objectType=Conversation", "content": "<p>Saw a <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@codepen\" class=\"u-url mention\">@<span>codepen</span></a></span> demo using... a lot! of elements (screen 1) and quite a bit of <a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</span></a> to create a simple loader, so I forked it and made a 1 div version (screen 2) in under 30 CSS declarations (gradients, mask, variables to only change --c0 and --c1 values for 2nd loader): <a href=\"https://codepen.io/thebabydino/pen/PwoLJLR\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/Pwo</span><span class=\"invisible\">LJLR</span></a></p><p><a href=\"https://mastodon.social/tags/cssMask\" class=\"mention hashtag\" rel=\"tag\">#<span>cssMask</span></a> <a href=\"https://mastodon.social/tags/cssGradient\" class=\"mention hashtag\" rel=\"tag\">#<span>cssGradient</span></a> <a href=\"https://mastodon.social/tags/conicGradient\" class=\"mention hashtag\" rel=\"tag\">#<span>conicGradient</span></a> <a href=\"https://mastodon.social/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mastodon.social/tags/trigonometry\" class=\"mention hashtag\" rel=\"tag\">#<span>trigonometry</span></a> <a href=\"https://mastodon.social/tags/Sass\" class=\"mention hashtag\" rel=\"tag\">#<span>Sass</span></a> <a href=\"https://mastodon.social/tags/loader\" class=\"mention hashtag\" rel=\"tag\">#<span>loader</span></a> <a href=\"https://mastodon.social/tags/web\" class=\"mention hashtag\" rel=\"tag\">#<span>web</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> <a href=\"https://mastodon.social/tags/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</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/cssAnimation\" class=\"mention hashtag\" rel=\"tag\">#<span>cssAnimation</span></a></p>", "contentMap": { "en": "<p>Saw a <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@codepen\" class=\"u-url mention\">@<span>codepen</span></a></span> demo using... a lot! of elements (screen 1) and quite a bit of <a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</span></a> to create a simple loader, so I forked it and made a 1 div version (screen 2) in under 30 CSS declarations (gradients, mask, variables to only change --c0 and --c1 values for 2nd loader): <a href=\"https://codepen.io/thebabydino/pen/PwoLJLR\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/Pwo</span><span class=\"invisible\">LJLR</span></a></p><p><a href=\"https://mastodon.social/tags/cssMask\" class=\"mention hashtag\" rel=\"tag\">#<span>cssMask</span></a> <a href=\"https://mastodon.social/tags/cssGradient\" class=\"mention hashtag\" rel=\"tag\">#<span>cssGradient</span></a> <a href=\"https://mastodon.social/tags/conicGradient\" class=\"mention hashtag\" rel=\"tag\">#<span>conicGradient</span></a> <a href=\"https://mastodon.social/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mastodon.social/tags/trigonometry\" class=\"mention hashtag\" rel=\"tag\">#<span>trigonometry</span></a> <a href=\"https://mastodon.social/tags/Sass\" class=\"mention hashtag\" rel=\"tag\">#<span>Sass</span></a> <a href=\"https://mastodon.social/tags/loader\" class=\"mention hashtag\" rel=\"tag\">#<span>loader</span></a> <a href=\"https://mastodon.social/tags/web\" class=\"mention hashtag\" rel=\"tag\">#<span>web</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> <a href=\"https://mastodon.social/tags/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</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/cssAnimation\" class=\"mention hashtag\" rel=\"tag\">#<span>cssAnimation</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/114/296/268/202/047/371/original/6db30bec001de643.png", "name": "Screenshot with DevTools open, showing each loader being created with a div with 4 other nested div elements, 2 span elements, 2 i elements and 2 pseudos inside.", "blurhash": "U14_tmK#T2RB9rKbRl$m4,O8s?rtITV?$+IU", "focalPoint": [ 0, 0 ], "width": 759, "height": 821 }, { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/114/296/267/629/771/525/original/60a578994ebdc7fd.png", "name": "Screenshot with DevTools open, showing each loader being created with only 1 div and its 2 pseudos.", "blurhash": "U15=9Dl,SxvNEIBeaJ+b54KHi|w2R=Rk$,RQ", "focalPoint": [ 0, 0 ], "width": 826, "height": 937 } ], "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/cssmask", "name": "#cssmask" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/cssgradient", "name": "#cssgradient" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/conicgradient", "name": "#conicgradient" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/maths", "name": "#maths" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/trigonometry", "name": "#trigonometry" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/sass", "name": "#sass" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/loader", "name": "#loader" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/web", "name": "#web" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/dev", "name": "#dev" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/webdev", "name": "#webdev" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/webdevelopment", "name": "#webdevelopment" }, { "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/cssanimation", "name": "#cssanimation" } ], "replies": { "id": "https://mastodon.social/users/anatudor/statuses/114296277014787581/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/anatudor/statuses/114296277014787581/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/anatudor/statuses/114296277014787581/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/anatudor/statuses/114296277014787581/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://mastodon.social/users/anatudor/statuses/114296277014787581/shares", "type": "Collection", "totalItems": 2 } }