Emoji

Emojis are documented in FEP-9098

In the support table:

• ✅ means Emoji parsed
• • means Emoji not parsed
• ❌ failed to process, i.e. no message received in the application.

Examples

Example 1

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mastodon/users/hippo",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/JX5ON3-uttc",
  "published": "2025-09-03T18:48:47Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mastodon/users/hippo"
    ],
    "id": "http://pasture-one-actor/object/lqHQMHS0oMw",
    "published": "2025-09-03T18:48:47Z",
    "content": "emoji base properties :cow1:",
    "tag": [
      {
        "type": "Emoji",
        "name": ":cow1:",
        "updated": "2025-01-22T12:57:33Z",
        "icon": {
          "type": "Image",
          "mediaType": "image/png",
          "url": "http://pasture-one-actor/assets/cow_emoji.png"
        }
      }
    ]
  }
}

mastodon

{
  "id": "115141858275934853",
  "created_at": "2025-09-03T18:48:47.000Z",
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/lqHQMHS0oMw",
  "url": "http://pasture-one-actor/object/lqHQMHS0oMw",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "edited_at": null,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "content": "emoji base properties :cow1:",
  "filtered": [],
  "reblog": null,
  "account": {
    "id": "115141847643620579",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "discoverable": false,
    "indexable": false,
    "group": false,
    "created_at": "2025-09-03T00:00:00.000Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "http://mastodon/avatars/original/missing.png",
    "avatar_static": "http://mastodon/avatars/original/missing.png",
    "header": "http://mastodon/headers/original/missing.png",
    "header_static": "http://mastodon/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 63,
    "last_status_at": "2025-09-03",
    "hide_collections": true,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "emojis": [
    {
      "shortcode": "cow1",
      "url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/001/original/bef0f1eb03abd4b4.png",
      "static_url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/001/static/bef0f1eb03abd4b4.png",
      "visible_in_picker": true
    }
  ],
  "quote": null,
  "card": null,
  "poll": null
}

Example 2

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mastodon/users/hippo",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/ghCH4VYFuVE",
  "published": "2025-09-03T18:48:48Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mastodon/users/hippo"
    ],
    "id": "http://pasture-one-actor/object/liz9AlLIxvI",
    "published": "2025-09-03T18:48:48Z",
    "content": "emoji minimal properties :cow2:",
    "tag": [
      {
        "type": "Emoji",
        "name": ":cow2:",
        "icon": {
          "url": "http://pasture-one-actor/assets/cow_emoji.png"
        }
      }
    ]
  }
}

mastodon

{
  "id": "115141858351284694",
  "created_at": "2025-09-03T18:48:48.000Z",
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/liz9AlLIxvI",
  "url": "http://pasture-one-actor/object/liz9AlLIxvI",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "edited_at": null,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "content": "emoji minimal properties :cow2:",
  "filtered": [],
  "reblog": null,
  "account": {
    "id": "115141847643620579",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "discoverable": false,
    "indexable": false,
    "group": false,
    "created_at": "2025-09-03T00:00:00.000Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "http://mastodon/avatars/original/missing.png",
    "avatar_static": "http://mastodon/avatars/original/missing.png",
    "header": "http://mastodon/headers/original/missing.png",
    "header_static": "http://mastodon/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 64,
    "last_status_at": "2025-09-03",
    "hide_collections": true,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "emojis": [
    {
      "shortcode": "cow2",
      "url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/002/original/454bd5545a5ff8ec.png",
      "static_url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/002/static/454bd5545a5ff8ec.png",
      "visible_in_picker": true
    }
  ],
  "quote": null,
  "card": null,
  "poll": null
}

Example 3

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mastodon/users/hippo",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/0pOZoNtg65o",
  "published": "2025-09-03T18:48:49Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mastodon/users/hippo"
    ],
    "id": "http://pasture-one-actor/object/z4hs8vv7Ltg",
    "published": "2025-09-03T18:48:49Z",
    "content": "emoji with type of icon :cow3:",
    "tag": [
      {
        "type": "Emoji",
        "name": ":cow3:",
        "icon": {
          "type": "Image",
          "url": "http://pasture-one-actor/assets/cow_emoji.png"
        }
      }
    ]
  }
}

mastodon

{
  "id": "115141858416023962",
  "created_at": "2025-09-03T18:48:49.000Z",
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/z4hs8vv7Ltg",
  "url": "http://pasture-one-actor/object/z4hs8vv7Ltg",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "edited_at": null,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "content": "emoji with type of icon :cow3:",
  "filtered": [],
  "reblog": null,
  "account": {
    "id": "115141847643620579",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "discoverable": false,
    "indexable": false,
    "group": false,
    "created_at": "2025-09-03T00:00:00.000Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "http://mastodon/avatars/original/missing.png",
    "avatar_static": "http://mastodon/avatars/original/missing.png",
    "header": "http://mastodon/headers/original/missing.png",
    "header_static": "http://mastodon/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 65,
    "last_status_at": "2025-09-03",
    "hide_collections": true,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "emojis": [
    {
      "shortcode": "cow3",
      "url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/003/original/cb3d3966bc974b4e.png",
      "static_url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/003/static/cb3d3966bc974b4e.png",
      "visible_in_picker": true
    }
  ],
  "quote": null,
  "card": null,
  "poll": null
}

Example 4

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mastodon/users/hippo",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/xEABZvvMeiE",
  "published": "2025-09-03T18:48:50Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mastodon/users/hippo"
    ],
    "id": "http://pasture-one-actor/object/IlQbC8SD09s",
    "published": "2025-09-03T18:48:50Z",
    "content": "emoji with inlined icon :cow4:",
    "tag": [
      {
        "type": "Emoji",
        "name": ":cow4:",
        "icon": "http://pasture-one-actor/assets/cow_emoji.png"
      }
    ]
  }
}

no result

Example 5

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mastodon/users/hippo",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/S_vktel2Dws",
  "published": "2025-09-03T18:49:04Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mastodon/users/hippo"
    ],
    "id": "http://pasture-one-actor/object/tf8ad9SJGBs",
    "published": "2025-09-03T18:49:04Z",
    "content": "emoji with id :cow5:",
    "tag": [
      {
        "id": "http://pasture-one-actor/assets/cow_emoji.jsonap",
        "type": "Emoji",
        "name": ":cow5:",
        "updated": "2025-01-22T12:57:33Z",
        "icon": {
          "type": "Image",
          "mediaType": "image/png",
          "url": "http://pasture-one-actor/assets/cow_emoji.png"
        }
      }
    ]
  }
}

mastodon

{
  "id": "115141859426285811",
  "created_at": "2025-09-03T18:49:04.000Z",
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/tf8ad9SJGBs",
  "url": "http://pasture-one-actor/object/tf8ad9SJGBs",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "edited_at": null,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "content": "emoji with id :cow5:",
  "filtered": [],
  "reblog": null,
  "account": {
    "id": "115141847643620579",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "discoverable": false,
    "indexable": false,
    "group": false,
    "created_at": "2025-09-03T00:00:00.000Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "http://mastodon/avatars/original/missing.png",
    "avatar_static": "http://mastodon/avatars/original/missing.png",
    "header": "http://mastodon/headers/original/missing.png",
    "header_static": "http://mastodon/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 66,
    "last_status_at": "2025-09-03",
    "hide_collections": true,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "emojis": [
    {
      "shortcode": "cow5",
      "url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/004/original/756c639fdc95994f.png",
      "static_url": "http://localhost:2970/system/cache/custom_emojis/images/000/000/004/static/756c639fdc95994f.png",
      "visible_in_picker": true
    }
  ],
  "quote": null,
  "card": null,
  "poll": null
}

Example 6

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mastodon/users/hippo",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/0rq5ST_tGV4",
  "published": "2025-09-03T18:49:05Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mastodon/users/hippo"
    ],
    "id": "http://pasture-one-actor/object/RA6UY8B44cs",
    "published": "2025-09-03T18:49:05Z",
    "content": "emoji with missing icon :cow6:",
    "tag": [
      {
        "type": "Emoji",
        "name": ":cow6:"
      }
    ]
  }
}

mastodon

{
  "id": "115141859491115257",
  "created_at": "2025-09-03T18:49:05.000Z",
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/RA6UY8B44cs",
  "url": "http://pasture-one-actor/object/RA6UY8B44cs",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "edited_at": null,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "content": "emoji with missing icon :cow6:",
  "filtered": [],
  "reblog": null,
  "account": {
    "id": "115141847643620579",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "discoverable": false,
    "indexable": false,
    "group": false,
    "created_at": "2025-09-03T00:00:00.000Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "http://mastodon/avatars/original/missing.png",
    "avatar_static": "http://mastodon/avatars/original/missing.png",
    "header": "http://mastodon/headers/original/missing.png",
    "header_static": "http://mastodon/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 67,
    "last_status_at": "2025-09-03",
    "hide_collections": true,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "emojis": [],
  "quote": null,
  "card": null,
  "poll": null
}

Example 7

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mastodon/users/hippo",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/-irEvWwGyDY",
  "published": "2025-09-03T18:49:06Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mastodon/users/hippo"
    ],
    "id": "http://pasture-one-actor/object/ySrMFUf34Io",
    "published": "2025-09-03T18:49:06Z",
    "content": "emoji just id :cow:",
    "tag": [
      "http://pasture-one-actor/assets/cow_emoji.jsonap"
    ]
  }
}

mastodon

{
  "id": "115141859554847065",
  "created_at": "2025-09-03T18:49:06.000Z",
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/ySrMFUf34Io",
  "url": "http://pasture-one-actor/object/ySrMFUf34Io",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "edited_at": null,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "content": "emoji just id :cow:",
  "filtered": [],
  "reblog": null,
  "account": {
    "id": "115141847643620579",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "discoverable": false,
    "indexable": false,
    "group": false,
    "created_at": "2025-09-03T00:00:00.000Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "http://mastodon/avatars/original/missing.png",
    "avatar_static": "http://mastodon/avatars/original/missing.png",
    "header": "http://mastodon/headers/original/missing.png",
    "header_static": "http://mastodon/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 68,
    "last_status_at": "2025-09-03",
    "hide_collections": true,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "emojis": [],
  "quote": null,
  "card": null,
  "poll": null
}