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.

Open in browser →
{ "@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://fosstodon.org/users/kitten_tech/statuses/114026201697704960", "type": "Note", "summary": null, "inReplyTo": "https://fosstodon.org/users/kitten_tech/statuses/114026188221637913", "published": "2025-02-18T18:02:39Z", "url": "https://fosstodon.org/@kitten_tech/114026201697704960", "attributedTo": "https://fosstodon.org/users/kitten_tech", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fosstodon.org/users/kitten_tech/followers" ], "sensitive": false, "atomUri": "https://fosstodon.org/users/kitten_tech/statuses/114026201697704960", "inReplyToAtomUri": "https://fosstodon.org/users/kitten_tech/statuses/114026188221637913", "conversation": "tag:fosstodon.org,2025-02-18:objectId=289625717:objectType=Conversation", "content": "<p>I think the formula involved (some large number) to the power of 1-1/(another large number). Whoever originally implemented it was not familiar with floating point quirks, and computed 1-1÷(large number) directly, producing a value that was invariably 1 so our join plans were always terrible. I rewrote it using C&#39;s log1p function from math.h, and fixed another even more terrible bug, and suddenly we produced sensible join plans!</p>", "contentMap": { "en": "<p>I think the formula involved (some large number) to the power of 1-1/(another large number). Whoever originally implemented it was not familiar with floating point quirks, and computed 1-1÷(large number) directly, producing a value that was invariably 1 so our join plans were always terrible. I rewrote it using C&#39;s log1p function from math.h, and fixed another even more terrible bug, and suddenly we produced sensible join plans!</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://fosstodon.org/users/kitten_tech/statuses/114026201697704960/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fosstodon.org/users/kitten_tech/statuses/114026201697704960/replies?min_id=114026207716511714&page=true", "partOf": "https://fosstodon.org/users/kitten_tech/statuses/114026201697704960/replies", "items": [ "https://fosstodon.org/users/kitten_tech/statuses/114026207716511714" ] } }, "likes": { "id": "https://fosstodon.org/users/kitten_tech/statuses/114026201697704960/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://fosstodon.org/users/kitten_tech/statuses/114026201697704960/shares", "type": "Collection", "totalItems": 0 } }