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://w3id.org/security/v1", "https://www.w3.org/ns/activitystreams", { "Hashtag": "as:Hashtag", "sensitive": "as:sensitive", "schema": "http://schema.org/", "pixelfed": "http://pixelfed.org/ns#", "commentsEnabled": { "@id": "pixelfed:commentsEnabled", "@type": "schema:Boolean" }, "capabilities": { "@id": "pixelfed:capabilities", "@container": "@set" }, "announce": { "@id": "pixelfed:canAnnounce", "@type": "@id" }, "like": { "@id": "pixelfed:canLike", "@type": "@id" }, "reply": { "@id": "pixelfed:canReply", "@type": "@id" }, "toot": "http://joinmastodon.org/ns#", "Emoji": "toot:Emoji", "blurhash": "toot:blurhash" } ], "id": "https://pixelfed.social/p/bbcamping/837295124834558663", "type": "Note", "summary": null, "content": "Look up to the sky...<br />\nFloating in Gemini, the Jellyfish Nebula (IC 443) is a 5,000-light-year-old supernova remnant—an graveyard of gas and dust. Its tangled filaments and shockwaves reveal the violent death of a massive star. Astronomers study it to learn how supernovae shape galaxies. We just admire it! ;-)<br />\n<br />\n<a href=\"https://pixelfed.social/discover/tags/stargazing?src=hash\" title=\"#stargazing\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#stargazing</a> <a href=\"https://pixelfed.social/discover/tags/lookup?src=hash\" title=\"#lookup\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#lookup</a> <a href=\"https://pixelfed.social/discover/tags/darksky?src=hash\" title=\"#darksky\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#darksky</a> <a href=\"https://pixelfed.social/discover/tags/astrophotography?src=hash\" title=\"#astrophotography\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#astrophotography</a> <a href=\"https://pixelfed.social/discover/tags/camping?src=hash\" title=\"#camping\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#camping</a> <a href=\"https://pixelfed.social/discover/tags/seestar?src=hash\" title=\"#seestar\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#seestar</a> <a href=\"https://pixelfed.social/discover/tags/connectwithnature?src=hash\" title=\"#connectwithnature\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#connectwithnature</a> <a href=\"https://pixelfed.social/discover/tags/sky?src=hash\" title=\"#sky\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#sky</a> <a href=\"https://pixelfed.social/discover/tags/jellyfish?src=hash\" title=\"#jellyfish\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#jellyfish</a> <a href=\"https://pixelfed.social/discover/tags/Alentejo?src=hash\" title=\"#Alentejo\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#Alentejo</a> <a href=\"https://pixelfed.social/discover/tags/deepspace?src=hash\" title=\"#deepspace\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#deepspace</a> <a href=\"https://pixelfed.social/discover/tags/alltogether?src=hash\" title=\"#alltogether\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#alltogether</a> <a href=\"https://pixelfed.social/discover/tags/jellyfish?src=hash\" title=\"#jellyfish\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#jellyfish</a> <a href=\"https://pixelfed.social/discover/tags/nebula?src=hash\" title=\"#nebula\" class=\"u-url hashtag\" rel=\"external nofollow noopener\">#nebula</a>", "inReplyTo": null, "published": "2025-06-08T11:51:53+00:00", "url": "https://pixelfed.social/p/bbcamping/837295124834558663", "attributedTo": "https://pixelfed.social/users/bbcamping", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://pixelfed.social/users/bbcamping/followers" ], "sensitive": false, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://pxscdn.com/public/m/_v2/834464877024232240/4f692c7f1-e20d1b/wFq9MXXad3h9/yyf2f2RL3ZpiRMw0A0i99Uje0YsOsWPWAquk5Gnn.jpg", "name": "Photo taken at Bubulcus & Bolotas with Seestar 50 telescope, showing red filaments of glowing gas curve like a jellyfish in space—this is IC 443, the Jellyfish Nebula. A supernova remnant floating in the starry night of Gemini.", "blurhash": "U37T2*I:1b=y+at8FdM{}sEMEg=y9[%1s:Io", "focalPoint": [ 0, 0 ], "width": 1080, "height": 1350 } ], "tag": [ { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/sky", "name": "#sky" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/camping", "name": "#camping" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/jellyfish", "name": "#jellyfish" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/nebula", "name": "#nebula" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/astrophotography", "name": "#astrophotography" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/lookup", "name": "#lookup" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/darksky", "name": "#darksky" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/stargazing", "name": "#stargazing" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/deepspace", "name": "#deepspace" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/alentejo", "name": "#alentejo" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/alltogether", "name": "#alltogether" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/connectwithnature", "name": "#ConnectWithNature" }, { "type": "Hashtag", "href": "https://pixelfed.social/discover/tags/seestar", "name": "#seestar" } ], "commentsEnabled": true, "capabilities": { "announce": "https://www.w3.org/ns/activitystreams#Public", "like": "https://www.w3.org/ns/activitystreams#Public", "reply": "https://www.w3.org/ns/activitystreams#Public" }, "location": null }