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/114558125107291870/replies", "type": "Collection", "first": { "id": "https://mastodon.social/users/anatudor/statuses/114558125107291870/replies?page=true", "type": "CollectionPage", "next": "https://mastodon.social/users/anatudor/statuses/114558125107291870/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/anatudor/statuses/114558125107291870/replies", "items": [ { "id": "https://mastodon.social/users/anatudor/statuses/114563211716314983", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/anatudor/statuses/114558125107291870", "published": "2025-05-24T14:11:21Z", "url": "https://mastodon.social/@anatudor/114563211716314983", "attributedTo": "https://mastodon.social/users/anatudor", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/anatudor/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/anatudor/statuses/114563211716314983", "inReplyToAtomUri": "https://mastodon.social/users/anatudor/statuses/114558125107291870", "conversation": "tag:mastodon.social,2025-05-13:objectId=995719435:objectType=Conversation", "content": "<p>6️⃣ 816 ❤️ no sprite, no JS twitter 🤍 animation <a href=\"https://codepen.io/thebabydino/pen/RRRRZE\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/RRR</span><span class=\"invisible\">RZE</span></a></p><p>Behind the demo <a href=\"https://css-tricks.com/recreating-the-twitter-heart-animation/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">css-tricks.com/recreating-the-</span><span class=\"invisible\">twitter-heart-animation/</span></a></p><p>Now twitter uses an SVG heart 👍 (that path data though 😵) and upon clicking, inserts a div with the sparks. There are better ways to do it... still better than sprites!</p><p><a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</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/webDev\" class=\"mention hashtag\" rel=\"tag\">#<span>webDev</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/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</span></a></p>", "contentMap": { "en": "<p>6️⃣ 816 ❤️ no sprite, no JS twitter 🤍 animation <a href=\"https://codepen.io/thebabydino/pen/RRRRZE\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/RRR</span><span class=\"invisible\">RZE</span></a></p><p>Behind the demo <a href=\"https://css-tricks.com/recreating-the-twitter-heart-animation/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">css-tricks.com/recreating-the-</span><span class=\"invisible\">twitter-heart-animation/</span></a></p><p>Now twitter uses an SVG heart 👍 (that path data though 😵) and upon clicking, inserts a div with the sparks. There are better ways to do it... still better than sprites!</p><p><a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</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/webDev\" class=\"mention hashtag\" rel=\"tag\">#<span>webDev</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/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/114/563/207/485/704/199/original/e4b48403ffe171d8.png", "name": "Shows the twitter heart animation with sparks flying away from it as it goes from grey to red on click.", "blurhash": "U01fG7s=9tX5s;jubHfQ9tW.=|sDkDfRjFjs", "focalPoint": [ 0, 0 ], "width": 401, "height": 323 }, { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/114/563/208/082/891/320/original/a0d43d25d9b75e7b.png", "name": "The current twitter heart in DevTools: created with an SVG path, but that path data is a lot of char vomit.", "blurhash": "U48:|*0~Ef$%s:WXjZjYW=o0f5fks:WXjZn$", "focalPoint": [ 0, 0 ], "width": 548, "height": 547 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/css", "name": "#css" }, { "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/webdev", "name": "#webdev" }, { "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/webdevelopment", "name": "#webdevelopment" } ], "replies": { "id": "https://mastodon.social/users/anatudor/statuses/114563211716314983/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/anatudor/statuses/114563211716314983/replies?min_id=114563893432014015&page=true", "partOf": "https://mastodon.social/users/anatudor/statuses/114563211716314983/replies", "items": [ "https://mastodon.social/users/anatudor/statuses/114563893432014015" ] } }, "likes": { "id": "https://mastodon.social/users/anatudor/statuses/114563211716314983/likes", "type": "Collection", "totalItems": 4 }, "shares": { "id": "https://mastodon.social/users/anatudor/statuses/114563211716314983/shares", "type": "Collection", "totalItems": 1 } } ] } }