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://mastodon.sdf.org/users/argv_minus_one/collections/featured",
"type": "OrderedCollection",
"totalItems": 5,
"orderedItems": [
{
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113568889204080885",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2024-11-29T23:42:04Z",
"url": "https://mastodon.sdf.org/@argv_minus_one/113568889204080885",
"attributedTo": "https://mastodon.sdf.org/users/argv_minus_one",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.sdf.org/users/argv_minus_one/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113568889204080885",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.sdf.org,2024-11-29:objectId=225631985:objectType=Conversation",
"content": "<p>So, somebody wrote a program that converts, in-place, an <a href=\"https://mastodon.sdf.org/tags/NTFS\" class=\"mention hashtag\" rel=\"tag\">#<span>NTFS</span></a> volume into <a href=\"https://mastodon.sdf.org/tags/btrfs\" class=\"mention hashtag\" rel=\"tag\">#<span>btrfs</span></a>.</p><p>It even keeps an image of the original NTFS volume as a file in the resulting btrfs volume. This can be used to undo the conversion or deleted to free up space and make the conversion permanent.</p><p>That is absolutely wild.</p><p><a href=\"https://github.com/maharmstone/ntfs2btrfs\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">github.com/maharmstone/ntfs2bt</span><span class=\"invisible\">rfs</span></a></p><p><a href=\"https://mastodon.sdf.org/tags/Linux\" class=\"mention hashtag\" rel=\"tag\">#<span>Linux</span></a></p>",
"contentMap": {
"en": "<p>So, somebody wrote a program that converts, in-place, an <a href=\"https://mastodon.sdf.org/tags/NTFS\" class=\"mention hashtag\" rel=\"tag\">#<span>NTFS</span></a> volume into <a href=\"https://mastodon.sdf.org/tags/btrfs\" class=\"mention hashtag\" rel=\"tag\">#<span>btrfs</span></a>.</p><p>It even keeps an image of the original NTFS volume as a file in the resulting btrfs volume. This can be used to undo the conversion or deleted to free up space and make the conversion permanent.</p><p>That is absolutely wild.</p><p><a href=\"https://github.com/maharmstone/ntfs2btrfs\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">github.com/maharmstone/ntfs2bt</span><span class=\"invisible\">rfs</span></a></p><p><a href=\"https://mastodon.sdf.org/tags/Linux\" class=\"mention hashtag\" rel=\"tag\">#<span>Linux</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/ntfs",
"name": "#ntfs"
},
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/btrfs",
"name": "#btrfs"
},
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/linux",
"name": "#linux"
}
],
"replies": {
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113568889204080885/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113568889204080885/replies?min_id=113568906980671091&page=true",
"partOf": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113568889204080885/replies",
"items": [
"https://mastodon.sdf.org/users/argv_minus_one/statuses/113568906980671091"
]
}
}
},
{
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114277438415809081",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-04-04T02:55:27Z",
"url": "https://mastodon.sdf.org/@argv_minus_one/114277438415809081",
"attributedTo": "https://mastodon.sdf.org/users/argv_minus_one",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.sdf.org/users/argv_minus_one/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114277438415809081",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.sdf.org,2025-04-04:objectId=256215382:objectType=Conversation",
"content": "<p><a href=\"https://mastodon.sdf.org/tags/Popcorn\" class=\"mention hashtag\" rel=\"tag\">#<span>Popcorn</span></a>: for when cooking just isn't good enough and you need your food to straight-up explode.</p>",
"contentMap": {
"en": "<p><a href=\"https://mastodon.sdf.org/tags/Popcorn\" class=\"mention hashtag\" rel=\"tag\">#<span>Popcorn</span></a>: for when cooking just isn't good enough and you need your food to straight-up explode.</p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/popcorn",
"name": "#popcorn"
}
],
"replies": {
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114277438415809081/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114277438415809081/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114277438415809081/replies",
"items": []
}
}
},
{
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114044574653521597",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-02-21T23:55:08Z",
"url": "https://mastodon.sdf.org/@argv_minus_one/114044574653521597",
"attributedTo": "https://mastodon.sdf.org/users/argv_minus_one",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.sdf.org/users/argv_minus_one/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114044574653521597",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.sdf.org,2025-02-21:objectId=245690652:objectType=Conversation",
"content": "<p>My <a href=\"https://mastodon.sdf.org/tags/cat\" class=\"mention hashtag\" rel=\"tag\">#<span>cat</span></a> is large and full of meows.</p>",
"contentMap": {
"en": "<p>My <a href=\"https://mastodon.sdf.org/tags/cat\" class=\"mention hashtag\" rel=\"tag\">#<span>cat</span></a> is large and full of meows.</p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/cat",
"name": "#cat"
}
],
"replies": {
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114044574653521597/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114044574653521597/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.sdf.org/users/argv_minus_one/statuses/114044574653521597/replies",
"items": []
}
}
},
{
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064188193838142",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2024-09-01T20:29:58Z",
"url": "https://mastodon.sdf.org/@argv_minus_one/113064188193838142",
"attributedTo": "https://mastodon.sdf.org/users/argv_minus_one",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.sdf.org/users/argv_minus_one/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064188193838142",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.sdf.org,2024-09-01:objectId=202226078:objectType=Conversation",
"content": "<p>We didn't have none of these new-fangled light-emitting doohickeys when I was young. If you wanted to see a picture on a screen back in my day, you'd point a 27-kilovolt death ray at your face, which came with a screen attached in front of it, and the death ray would light up the screen. This contraption somehow didn't kill us. Usually.</p><p><a href=\"https://mastodon.sdf.org/tags/CRT\" class=\"mention hashtag\" rel=\"tag\">#<span>CRT</span></a></p>",
"contentMap": {
"en": "<p>We didn't have none of these new-fangled light-emitting doohickeys when I was young. If you wanted to see a picture on a screen back in my day, you'd point a 27-kilovolt death ray at your face, which came with a screen attached in front of it, and the death ray would light up the screen. This contraption somehow didn't kill us. Usually.</p><p><a href=\"https://mastodon.sdf.org/tags/CRT\" class=\"mention hashtag\" rel=\"tag\">#<span>CRT</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/crt",
"name": "#crt"
}
],
"replies": {
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064188193838142/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064188193838142/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064188193838142/replies",
"items": []
}
}
},
{
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064185752597775",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2024-09-01T20:29:20Z",
"url": "https://mastodon.sdf.org/@argv_minus_one/113064185752597775",
"attributedTo": "https://mastodon.sdf.org/users/argv_minus_one",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.sdf.org/users/argv_minus_one/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064185752597775",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.sdf.org,2024-09-01:objectId=202225977:objectType=Conversation",
"content": "<p>If you are doing <a href=\"https://mastodon.sdf.org/tags/Java\" class=\"mention hashtag\" rel=\"tag\">#<span>Java</span></a> <a href=\"https://mastodon.sdf.org/tags/programming\" class=\"mention hashtag\" rel=\"tag\">#<span>programming</span></a>, and you've downloaded a jar of <a href=\"https://mastodon.sdf.org/tags/Javadoc\" class=\"mention hashtag\" rel=\"tag\">#<span>Javadoc</span></a> documentation for some library, <a href=\"https://mastodon.sdf.org/tags/Firefox\" class=\"mention hashtag\" rel=\"tag\">#<span>Firefox</span></a> can directly display it without unpacking the jar!</p><p>Just prepend `jar:file://`, and append `!/index.html`, to form a URL.</p><p>For example, if the jar is located at:<br />/home/you/.m2/repository/com/example/example-library/1.0/example-library-1.0-javadoc.jar</p><p>Then use this URL:<br />jar:file:///home/you/.m2/repository/com/example/example-library/1.0/example-library-1.0-javadoc.jar!/index.html</p>",
"contentMap": {
"en": "<p>If you are doing <a href=\"https://mastodon.sdf.org/tags/Java\" class=\"mention hashtag\" rel=\"tag\">#<span>Java</span></a> <a href=\"https://mastodon.sdf.org/tags/programming\" class=\"mention hashtag\" rel=\"tag\">#<span>programming</span></a>, and you've downloaded a jar of <a href=\"https://mastodon.sdf.org/tags/Javadoc\" class=\"mention hashtag\" rel=\"tag\">#<span>Javadoc</span></a> documentation for some library, <a href=\"https://mastodon.sdf.org/tags/Firefox\" class=\"mention hashtag\" rel=\"tag\">#<span>Firefox</span></a> can directly display it without unpacking the jar!</p><p>Just prepend `jar:file://`, and append `!/index.html`, to form a URL.</p><p>For example, if the jar is located at:<br />/home/you/.m2/repository/com/example/example-library/1.0/example-library-1.0-javadoc.jar</p><p>Then use this URL:<br />jar:file:///home/you/.m2/repository/com/example/example-library/1.0/example-library-1.0-javadoc.jar!/index.html</p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/java",
"name": "#java"
},
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/programming",
"name": "#programming"
},
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/javadoc",
"name": "#javadoc"
},
{
"type": "Hashtag",
"href": "https://mastodon.sdf.org/tags/firefox",
"name": "#firefox"
}
],
"replies": {
"id": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064185752597775/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.sdf.org/users/argv_minus_one/statuses/113064185752597775/replies?only_other_accounts=true&page=true",
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"items": []
}
}
}
]
}