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/114284950702025424", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.sdf.org/users/eiZen/statuses/114284923229561300", "published": "2025-04-05T10:45:55Z", "url": "https://mastodon.sdf.org/@eiZen/114284950702025424", "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/114284950702025424", "inReplyToAtomUri": "https://mastodon.sdf.org/users/eiZen/statuses/114284923229561300", "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>7/</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>7/</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/934/426/658/381/original/7a04217c4d8a8b8f.png", "name": "Chapter headline", "blurhash": "ULQT4MIUWBIU00RjRjM{_3t7ayof_3t7j[xu", "width": 1080, "height": 327 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/935/598/583/516/original/292a247de1491fe5.png", "name": "Big title, CP/M and Japanese characters", "blurhash": "UJF@*eWBtRkCoekCfQax.mozV@aej@f7ayj@", "width": 1080, "height": 324 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/936/780/299/683/original/a69037972c70843d.png", "name": "Lots of ASCII garbage, or rather not ASCII but special characters?", "blurhash": "UHPQ87t7?bofM{Rjofay~qWBj[j[WBofofay", "width": 1080, "height": 944 }, { "type": "Document", "mediaType": "image/png", "url": "https://mastodon.sdf.org/system/media_attachments/files/114/284/937/495/688/990/original/7e05eb48563c195a.png", "name": "Typical tabular assembler listing, but with Japanese comments on the right side", "blurhash": "U3SPX_D%~qD%_3RjM{of%Mxut7-;9FxuxuM{", "width": 1080, "height": 1089 } ], "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/114284950702025424/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.sdf.org/users/eiZen/statuses/114284950702025424/replies?min_id=114284967701472441&page=true", "partOf": "https://mastodon.sdf.org/users/eiZen/statuses/114284950702025424/replies", "items": [ "https://mastodon.sdf.org/users/eiZen/statuses/114284967701472441" ] } } }