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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.social/users/PaulaMaddox/statuses/114200970947060086", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-03-21T14:48:46Z", "url": "https://mastodon.social/@PaulaMaddox/114200970947060086", "attributedTo": "https://mastodon.social/users/PaulaMaddox", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/PaulaMaddox/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/PaulaMaddox/statuses/114200970947060086", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-03-21:objectId=951781564:objectType=Conversation", "content": "<p>Woot another 4 voices built and tested (simple saw tooth filter sweep). <br />Bottom to top ;<br />- Alchitry AU fpga<br />- 4 vcf/vca voice card <br />- another 4 vcf/vca card<br />- STM32 card for midi and patch storage<br />- Alchitry BR to give me access to pins </p><p>The whole thing consumes about 450mA so far but the FPGA isn’t doing much yet, just generating a sawtooth and 32 delta-sigma DACs for the audio and CVs. </p><p><a href=\"https://mastodon.social/tags/FPGA\" class=\"mention hashtag\" rel=\"tag\">#<span>FPGA</span></a> <a href=\"https://mastodon.social/tags/vcf\" class=\"mention hashtag\" rel=\"tag\">#<span>vcf</span></a> <a href=\"https://mastodon.social/tags/synth\" class=\"mention hashtag\" rel=\"tag\">#<span>synth</span></a></p>", "contentMap": { "en": "<p>Woot another 4 voices built and tested (simple saw tooth filter sweep). <br />Bottom to top ;<br />- Alchitry AU fpga<br />- 4 vcf/vca voice card <br />- another 4 vcf/vca card<br />- STM32 card for midi and patch storage<br />- Alchitry BR to give me access to pins </p><p>The whole thing consumes about 450mA so far but the FPGA isn’t doing much yet, just generating a sawtooth and 32 delta-sigma DACs for the audio and CVs. </p><p><a href=\"https://mastodon.social/tags/FPGA\" class=\"mention hashtag\" rel=\"tag\">#<span>FPGA</span></a> <a href=\"https://mastodon.social/tags/vcf\" class=\"mention hashtag\" rel=\"tag\">#<span>vcf</span></a> <a href=\"https://mastodon.social/tags/synth\" class=\"mention hashtag\" rel=\"tag\">#<span>synth</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/114/200/952/434/043/035/original/9cbc0a930fdee8e3.png", "name": "Stack of 5 little PCBs with LEDs lit", "blurhash": "UNG9BK9u?w%MMJbbE1oJxFt7D%ofadxaNIo0", "width": 1536, "height": 1152 }, { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/114/200/952/560/362/984/original/9c02d9ca1d7e186b.png", "name": "5 stacked PCBs with LEDs from a different angle. ", "blurhash": "UHFE$KR6%}KN4Ts:MyxGF_tRn4$%jbt6x[WW", "width": 1536, "height": 1152 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/fpga", "name": "#fpga" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/vcf", "name": "#vcf" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/synth", "name": "#synth" } ], "replies": { "id": "https://mastodon.social/users/PaulaMaddox/statuses/114200970947060086/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/PaulaMaddox/statuses/114200970947060086/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/PaulaMaddox/statuses/114200970947060086/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/PaulaMaddox/statuses/114200970947060086/likes", "type": "Collection", "totalItems": 10 }, "shares": { "id": "https://mastodon.social/users/PaulaMaddox/statuses/114200970947060086/shares", "type": "Collection", "totalItems": 2 } }