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.sdf.org/users/eiZen/statuses/114284789928173609", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.sdf.org/users/eiZen/statuses/114284751925420314", "published": "2025-04-05T10:05:02Z", "url": "https://mastodon.sdf.org/@eiZen/114284789928173609", "attributedTo": "https://mastodon.sdf.org/users/eiZen", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.sdf.org/users/eiZen/followers" ], "sensitive": false, "atomUri": "https://mastodon.sdf.org/users/eiZen/statuses/114284789928173609", "inReplyToAtomUri": "https://mastodon.sdf.org/users/eiZen/statuses/114284751925420314", "conversation": "tag:mastodon.sdf.org,2025-04-05:objectId=256522255:objectType=Conversation", "content": "<p>Japanese CP/M Handbook Æsthetics</p><p><a href=\"https://mastodon.sdf.org/tags/Japanese\" class=\"mention hashtag\" rel=\"tag\">#<span>Japanese</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroTech\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroTech</span></a><br /><a href=\"https://mastodon.sdf.org/tags/CPM\" class=\"mention hashtag\" rel=\"tag\">#<span>CPM</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroComputing</span></a><br /><a href=\"https://mastodon.sdf.org/tags/Typography\" class=\"mention hashtag\" rel=\"tag\">#<span>Typography</span></a></p><p>4/</p>", "contentMap": { "en": "<p>Japanese CP/M Handbook Æsthetics</p><p><a href=\"https://mastodon.sdf.org/tags/Japanese\" class=\"mention hashtag\" rel=\"tag\">#<span>Japanese</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroTech\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroTech</span></a><br /><a href=\"https://mastodon.sdf.org/tags/CPM\" class=\"mention hashtag\" rel=\"tag\">#<span>CPM</span></a> <a href=\"https://mastodon.sdf.org/tags/RetroComputing\" class=\"mention hashtag\" rel=\"tag\">#<span>RetroComputing</span></a><br /><a href=\"https://mastodon.sdf.org/tags/Typography\" class=\"mention hashtag\" rel=\"tag\">#<span>Typography</span></a></p><p>4/</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/770/859/624/707/original/080ee0beb6c7f4ba.png", "name": "Flow diagram, something about EEPROM", "blurhash": "U4SY{q4n?b-;-;RjIUt7_3Rjj[%M~qD%IU%M", "focalPoint": [ 0.4059509, 0.11492306 ], "width": 1080, "height": 1697 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/771/258/093/229/original/d318240e394a5fcf.png", "name": "Something about computers, diskettes, and screen text. With respective photos of these.", "blurhash": "UTPj79j]-;t7~qWBt7t7?bofIUWB00j[M{Rj", "focalPoint": [ -0.080741644, -0.076324224 ], "width": 1080, "height": 1446 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/770/900/878/936/original/edf95a1cbab48c03.png", "name": "A table and some IC logic gate sketches ", "blurhash": "U4RfkBxuWB~qD%9F9F4nD%IUIUD%00M{M{t7", "focalPoint": [ -0.10316986, 0.8537822 ], "width": 1080, "height": 1622 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/771/117/566/694/original/717034511f244392.png", "name": "Some cylindrical thing and some block diagram, like about data structures in memory.", "blurhash": "U6R:KI%h~CIURQ?HjGIn%3R%E1oy-;tRIUM{", "focalPoint": [ 0, 0 ], "width": 1080, "height": 1424 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/japanese", "name": "#japanese" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/retrotech", "name": "#retrotech" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/cpm", "name": "#cpm" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/retrocomputing", "name": "#retrocomputing" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/typography", "name": "#typography" } ], "replies": { "id": "https://mastodon.sdf.org/users/eiZen/statuses/114284789928173609/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.sdf.org/users/eiZen/statuses/114284789928173609/replies?min_id=114284884041554277&page=true", "partOf": "https://mastodon.sdf.org/users/eiZen/statuses/114284789928173609/replies", "items": [ "https://mastodon.sdf.org/users/eiZen/statuses/114284884041554277" ] } } }