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", "https://w3id.org/security/v1", { "manuallyApprovesFollowers": "as:manuallyApprovesFollowers", "toot": "http://joinmastodon.org/ns#", "featured": { "@id": "toot:featured", "@type": "@id" }, "featuredTags": { "@id": "toot:featuredTags", "@type": "@id" }, "alsoKnownAs": { "@id": "as:alsoKnownAs", "@type": "@id" }, "movedTo": { "@id": "as:movedTo", "@type": "@id" }, "schema": "http://schema.org#", "PropertyValue": "schema:PropertyValue", "value": "schema:value", "discoverable": "toot:discoverable", "suspended": "toot:suspended", "memorial": "toot:memorial", "indexable": "toot:indexable", "attributionDomains": { "@id": "toot:attributionDomains", "@type": "@id" }, "Hashtag": "as:Hashtag", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://mastodon.social/users/pgconfdev", "type": "Person", "following": "https://mastodon.social/users/pgconfdev/following", "followers": "https://mastodon.social/users/pgconfdev/followers", "inbox": "https://mastodon.social/users/pgconfdev/inbox", "outbox": "https://mastodon.social/users/pgconfdev/outbox", "featured": "https://mastodon.social/users/pgconfdev/collections/featured", "featuredTags": "https://mastodon.social/users/pgconfdev/collections/tags", "preferredUsername": "pgconfdev", "name": "PGConf.dev 🐘", "summary": "<p>Bringing together everyone interested in <a href=\"https://mastodon.social/tags/PostgreSQL\" class=\"mention hashtag\" rel=\"tag\">#<span>PostgreSQL</span></a> development 🐘 Save the date: May 19-22, 2026 📅 in Vancouver 🍁<br />pgconf.dev 🔗</p><p>- Learn how to hack on <a href=\"https://mastodon.social/tags/Postgres\" class=\"mention hashtag\" rel=\"tag\">#<span>Postgres</span></a> 💻<br />- Brainstorm with Postgres community organizers 🧠<br />- Share your latest Postgres projects (of all types) 🗣️<br />- Build tomorrow&#39;s PostgreSQL 🔮</p>", "url": "https://mastodon.social/@pgconfdev", "manuallyApprovesFollowers": false, "discoverable": false, "indexable": false, "published": "2024-01-02T00:00:00Z", "memorial": false, "publicKey": { "id": "https://mastodon.social/users/pgconfdev#main-key", "owner": "https://mastodon.social/users/pgconfdev", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuZLhkfvKFn3jIdLnh4CA\ndtaWMV3VnBYFScsHnBbMvy91G9mGnyo0eftLa+eOq1sJB4fcBgzLutGJ58uPuG0s\nf4IoBJRn6E/MmkXOgaA+GLUvpnLe32vcLIVYSj6liuDJHBkrlPra+4jkTmLTVbVA\naYPYDagCTJGXfuEwkzDHnhaFVz1MU6SUpl358Sz0mULcPW/PM7MYkctlAuxsm/Bt\nkIuEt1QzW5m6JAX1NrVkpf/D5ZUPJ9jU9iwLwWVmpJvh/hBz2NuxtzoWF6P7H/dj\nnoWdWwczl6zBb54cWH6p75KewFP8a382kcGvRWJ/6GU1Kry/dlsyddkqWWwIn9O4\n6QIDAQAB\n-----END PUBLIC KEY-----\n" }, "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/postgresql", "name": "#postgresql" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/postgres", "name": "#postgres" } ], "attachment": [ { "type": "PropertyValue", "name": "Website", "value": "2025.pgconf.dev" } ], "endpoints": { "sharedInbox": "https://mastodon.social/inbox" }, "icon": { "type": "Image", "mediaType": "image/png", "url": "https://files.mastodon.social/accounts/avatars/111/687/888/257/105/600/original/678bc1e31a8a676d.png" }, "image": { "type": "Image", "mediaType": "image/png", "url": "https://files.mastodon.social/accounts/headers/111/687/888/257/105/600/original/b7432bed49209943.png" } }