diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
index 4b3092028..b8ca8fd44 100644
--- a/youtube_dl/extractor/extractors.py
+++ b/youtube_dl/extractor/extractors.py
@@ -601,6 +601,7 @@ from .markiza import (
     MarkizaPageIE,
 )
 from .massengeschmacktv import MassengeschmackTVIE
+from .mastodon import MastodonIE
 from .matchtv import MatchTVIE
 from .mdr import MDRIE
 from .mediaset import MediasetIE
diff --git a/youtube_dl/extractor/mastodon.py b/youtube_dl/extractor/mastodon.py
new file mode 100644
index 000000000..7f4a148ea
--- /dev/null
+++ b/youtube_dl/extractor/mastodon.py
@@ -0,0 +1,111 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+from .common import (
+    InfoExtractor,
+    ExtractorError,
+)
+
+from ..utils import (
+    clean_html,
+    str_or_none,
+)
+
+import re
+
+# this infoextractor is for services implementing the Mastodon API, not just Mastodon
+# supported services (possibly more already work or could):
+# - Mastodon - https://github.com/tootsuite/mastodon
+# - Glitch (a fork of Mastodon) - https://github.com/glitch-soc/mastodon
+# - Pleroma - https://git.pleroma.social/pleroma/pleroma
+# - Gab Social (a fork of Mastodon) - https://code.gab.com/gab/social/gab-social/
+
+
+class MastodonIE(InfoExtractor):
+    IE_NAME = 'mastodon'
+    _VALID_URL = r'https?://(?P<host>[^/\s]+)(?<!facebook\.com)/(?:(?:@[a-zA-Z0-9_]+|[a-zA-Z0-9_]+/posts|users/[a-zA-Z0-9_]+/statuses)|notice|objects)/(?P<id>[0-9a-zA-Z-]+)'
+
+    _TESTS = [{
+        # mastodon, video description
+        "url": "https://mastodon.technology/@BadAtNames/104254332187004304",
+        "info_dict": {
+            "id": "104254332187004304",
+            "title": "BadAtNames - Mfw trump supporters complain about twitter",
+            "ext": "mp4",
+            "description": "md5:53f4428d4dc7e25a8255cf2a08488f2e",
+        },
+    }, {
+        # pleroma, /objects/ redirect, empty content
+        "url": "https://fedi.valkyrie.world/objects/386d2d68-090f-492e-81bd-8d32a3a65627",
+        "info_dict": {
+            "id": "9xLMO1BcEEbaM54LBI",
+            "title": "VD-15 - ",
+            "ext": "mp4",
+            "description": "video0_4_1.mp4",
+        },
+    }, {
+        # pleroma, multiple videos in single post (can't define tests for _type multi_video)
+        "url": "https://donotsta.re/notice/9xN1v6yM7WhzE7aIIC",
+        "only_matching": True,
+    }, {
+        # gab social
+        "url": "https://gab.com/ACT1TV/posts/104450493441154721",
+        "info_dict": {
+            "id": "104450493441154721",
+            "title": "Bill Blaze - He shoots, he scores and the crowd went wild.... #Animal #Sports",
+            "ext": "mp4",
+        },
+    }]
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        host, id = mobj.group('host', 'id')
+
+        if '/objects/' in url:
+            page = self._download_webpage(url, '%s@%s' % (id, host), expected_status=302)
+            real_url = self._og_search_property('url', page, default=None)
+            if real_url:
+                return {
+                    "_type": "url",
+                    "ie_key": "Mastodon",
+                    "url": real_url,
+                }
+
+        metadata = self._download_json('https://%s/api/v1/statuses/%s' % (host, id), '%s@%s' % (id, host))
+
+        if not metadata['media_attachments']:
+            raise ExtractorError('No attached medias')
+
+        medias = []
+        for media in metadata['media_attachments']:
+            if media['type'] == 'video':
+                medias.append(media)
+
+        title = '%s - %s' % (str_or_none(metadata['account']['display_name'] or metadata['account']['acct']), clean_html(str_or_none(metadata['content'])))
+
+        if len(medias) == 0:
+            raise ExtractorError('No audio/video attachments')
+        elif len(medias) == 1:
+            media = medias[0]
+            return {
+                "id": id,
+                "title": title,
+                "description": str_or_none(media['description']),
+                "url": str_or_none(media['url']),
+                "thumbnail": str_or_none(media['preview_url']),
+            }
+        else:
+            entries = []
+            for media in medias:
+                entries.append({
+                    "id": id,
+                    "title": str_or_none(media['description']) or title,
+                    "url": str_or_none(media['url']),
+                    "thumbnail": str_or_none(media['preview_url']),
+                })
+            return {
+                "_type": "multi_video",
+                "id": id,
+                "title": title,
+                "entries": entries,
+            }