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" } ], "id": "https://mastodon.social/users/sindresorhus/statuses/114354813042805825/replies", "type": "Collection", "first": { "id": "https://mastodon.social/users/sindresorhus/statuses/114354813042805825/replies?page=true", "type": "CollectionPage", "next": "https://mastodon.social/users/sindresorhus/statuses/114354813042805825/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/sindresorhus/statuses/114354813042805825/replies", "items": [ { "id": "https://mastodon.social/users/sindresorhus/statuses/114354923958437778", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/sindresorhus/statuses/114354813042805825", "published": "2025-04-17T19:21:02Z", "url": "https://mastodon.social/@sindresorhus/114354923958437778", "attributedTo": "https://mastodon.social/users/sindresorhus", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/sindresorhus/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/sindresorhus/statuses/114354923958437778", "inReplyToAtomUri": "https://mastodon.social/users/sindresorhus/statuses/114354813042805825", "conversation": "tag:mastodon.social,2025-04-17:objectId=974841240:objectType=Conversation", "content": "<p>This app is the first implementor of the Simple Color Palette file format I&#39;m working on. You can read more about it at <a href=\"https://simplecolorpalette.com\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">simplecolorpalette.com</span><span class=\"invisible\"></span></a></p>", "contentMap": { "en": "<p>This app is the first implementor of the Simple Color Palette file format I&#39;m working on. You can read more about it at <a href=\"https://simplecolorpalette.com\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">simplecolorpalette.com</span><span class=\"invisible\"></span></a></p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mastodon.social/users/sindresorhus/statuses/114354923958437778/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/sindresorhus/statuses/114354923958437778/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/sindresorhus/statuses/114354923958437778/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/sindresorhus/statuses/114354923958437778/likes", "type": "Collection", "totalItems": 7 }, "shares": { "id": "https://mastodon.social/users/sindresorhus/statuses/114354923958437778/shares", "type": "Collection", "totalItems": 0 } } ] } }