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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"https://www.w3.org/ns/activitystreams",
{
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"inReplyToAtomUri": "ostatus:inReplyToAtomUri",
"conversation": "ostatus:conversation",
"sensitive": "as:sensitive",
"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"Hashtag": "as:Hashtag"
}
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"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-04-13T14:27:10Z",
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"name": "#youtube_columbiamusicjp"
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{
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