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",
"Hashtag": "as:Hashtag"
}
],
"id": "https://mas.to/users/frontenddogma/statuses/114686127187917712",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-06-15T07:10:23Z",
"url": "https://mas.to/@frontenddogma/114686127187917712",
"attributedTo": "https://mas.to/users/frontenddogma",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mas.to/users/frontenddogma/followers",
"https://front-end.social/users/heydon"
],
"sensitive": false,
"atomUri": "https://mas.to/users/frontenddogma/statuses/114686127187917712",
"inReplyToAtomUri": null,
"conversation": "tag:mas.to,2025-06-15:objectId=506060545:objectType=Conversation",
"content": "<p>The “col” Element, by <span class=\"h-card\" translate=\"no\"><a href=\"https://front-end.social/@heydon\" class=\"u-url mention\">@<span>heydon</span></a></span>:</p><p><a href=\"https://heydonworks.com/article/the-col-element/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">heydonworks.com/article/the-co</span><span class=\"invisible\">l-element/</span></a></p><p><a href=\"https://mas.to/tags/html\" class=\"mention hashtag\" rel=\"tag\">#<span>html</span></a> <a href=\"https://mas.to/tags/tables\" class=\"mention hashtag\" rel=\"tag\">#<span>tables</span></a> <a href=\"https://mas.to/tags/semantics\" class=\"mention hashtag\" rel=\"tag\">#<span>semantics</span></a></p>",
"contentMap": {
"en": "<p>The “col” Element, by <span class=\"h-card\" translate=\"no\"><a href=\"https://front-end.social/@heydon\" class=\"u-url mention\">@<span>heydon</span></a></span>:</p><p><a href=\"https://heydonworks.com/article/the-col-element/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">heydonworks.com/article/the-co</span><span class=\"invisible\">l-element/</span></a></p><p><a href=\"https://mas.to/tags/html\" class=\"mention hashtag\" rel=\"tag\">#<span>html</span></a> <a href=\"https://mas.to/tags/tables\" class=\"mention hashtag\" rel=\"tag\">#<span>tables</span></a> <a href=\"https://mas.to/tags/semantics\" class=\"mention hashtag\" rel=\"tag\">#<span>semantics</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Mention",
"href": "https://front-end.social/users/heydon",
"name": "@heydon@front-end.social"
},
{
"type": "Hashtag",
"href": "https://mas.to/tags/semantics",
"name": "#semantics"
},
{
"type": "Hashtag",
"href": "https://mas.to/tags/tables",
"name": "#tables"
},
{
"type": "Hashtag",
"href": "https://mas.to/tags/html",
"name": "#html"
}
],
"replies": {
"id": "https://mas.to/users/frontenddogma/statuses/114686127187917712/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mas.to/users/frontenddogma/statuses/114686127187917712/replies?only_other_accounts=true&page=true",
"partOf": "https://mas.to/users/frontenddogma/statuses/114686127187917712/replies",
"items": []
}
},
"likes": {
"id": "https://mas.to/users/frontenddogma/statuses/114686127187917712/likes",
"type": "Collection",
"totalItems": 1
},
"shares": {
"id": "https://mas.to/users/frontenddogma/statuses/114686127187917712/shares",
"type": "Collection",
"totalItems": 0
}
}