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.
{
"@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/rperezrosario/statuses/114742591490660952",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-06-25T06:30:00Z",
"url": "https://mastodon.social/@rperezrosario/114742591490660952",
"attributedTo": "https://mastodon.social/users/rperezrosario",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.social/users/rperezrosario/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.social/users/rperezrosario/statuses/114742591490660952",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.social,2025-06-25:objectId=1031834978:objectType=Conversation",
"content": "<p>Bart Wullems of The Art of Simplicity shares his experience using Microsoft's .NET Source Browser to take a peek at a particular API's internals. The code documentation pages have links to the corresponding Github repositories where you can see exactly how any given function is implemented. </p><p>"Browse the .NET code base with the .NET Source Browser" </p><p><a href=\"https://bartwullems.blogspot.com/2025/06/browse-net-code-base-with-net-source.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">bartwullems.blogspot.com/2025/</span><span class=\"invisible\">06/browse-net-code-base-with-net-source.html</span></a></p><p><a href=\"https://mastodon.social/tags/programming\" class=\"mention hashtag\" rel=\"tag\">#<span>programming</span></a> <a href=\"https://mastodon.social/tags/dotnetcore\" class=\"mention hashtag\" rel=\"tag\">#<span>dotnetcore</span></a> <a href=\"https://mastodon.social/tags/documentation\" class=\"mention hashtag\" rel=\"tag\">#<span>documentation</span></a> <a href=\"https://mastodon.social/tags/education\" class=\"mention hashtag\" rel=\"tag\">#<span>education</span></a> <a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a></p>",
"contentMap": {
"en": "<p>Bart Wullems of The Art of Simplicity shares his experience using Microsoft's .NET Source Browser to take a peek at a particular API's internals. The code documentation pages have links to the corresponding Github repositories where you can see exactly how any given function is implemented. </p><p>"Browse the .NET code base with the .NET Source Browser" </p><p><a href=\"https://bartwullems.blogspot.com/2025/06/browse-net-code-base-with-net-source.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">bartwullems.blogspot.com/2025/</span><span class=\"invisible\">06/browse-net-code-base-with-net-source.html</span></a></p><p><a href=\"https://mastodon.social/tags/programming\" class=\"mention hashtag\" rel=\"tag\">#<span>programming</span></a> <a href=\"https://mastodon.social/tags/dotnetcore\" class=\"mention hashtag\" rel=\"tag\">#<span>dotnetcore</span></a> <a href=\"https://mastodon.social/tags/documentation\" class=\"mention hashtag\" rel=\"tag\">#<span>documentation</span></a> <a href=\"https://mastodon.social/tags/education\" class=\"mention hashtag\" rel=\"tag\">#<span>education</span></a> <a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a></p>"
},
"updated": "2025-06-26T00:11:00Z",
"attachment": [
{
"type": "Document",
"mediaType": "image/jpeg",
"url": "https://files.mastodon.social/media_attachments/files/114/742/591/162/418/256/original/640fd4fa1088f176.jpg",
"name": null,
"blurhash": "USFr-QRj9Fj[WBafxuof00xu%MWBt7xuM{WB",
"width": 1024,
"height": 1024
}
],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/opensource",
"name": "#opensource"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/programming",
"name": "#programming"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/dotnetcore",
"name": "#dotnetcore"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/documentation",
"name": "#documentation"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/education",
"name": "#education"
}
],
"replies": {
"id": "https://mastodon.social/users/rperezrosario/statuses/114742591490660952/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.social/users/rperezrosario/statuses/114742591490660952/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.social/users/rperezrosario/statuses/114742591490660952/replies",
"items": []
}
},
"likes": {
"id": "https://mastodon.social/users/rperezrosario/statuses/114742591490660952/likes",
"type": "Collection",
"totalItems": 1
},
"shares": {
"id": "https://mastodon.social/users/rperezrosario/statuses/114742591490660952/shares",
"type": "Collection",
"totalItems": 1
}
}