diff --git a/yt_dlp/extractor/_extractors.py b/yt_dlp/extractor/_extractors.py
index 8c247908de..fa378e51ce 100644
--- a/yt_dlp/extractor/_extractors.py
+++ b/yt_dlp/extractor/_extractors.py
@@ -1197,6 +1197,7 @@ from .musicdex import (
     MusicdexPlaylistIE,
     MusicdexSongIE,
 )
+from .mux import MuxIE
 from .mx3 import (
     Mx3IE,
     Mx3NeoIE,
diff --git a/yt_dlp/extractor/mux.py b/yt_dlp/extractor/mux.py
new file mode 100644
index 0000000000..34a56f421f
--- /dev/null
+++ b/yt_dlp/extractor/mux.py
@@ -0,0 +1,92 @@
+import re
+
+from .common import InfoExtractor
+from ..utils import (
+    extract_attributes,
+    filter_dict,
+    parse_qs,
+    smuggle_url,
+    unsmuggle_url,
+    update_url_query,
+)
+from ..utils.traversal import traverse_obj
+
+
+class MuxIE(InfoExtractor):
+    _VALID_URL = r'https?://(?:stream\.new/v|player\.mux\.com)/(?P<id>[A-Za-z0-9-]+)'
+    _EMBED_REGEX = [r'<iframe\b[^>]+\bsrc=["\'](?P<url>(?:https?:)?//(?:stream\.new/v|player\.mux\.com)/(?P<id>[A-Za-z0-9-]+)[^"\']+)']
+    _TESTS = [{
+        'url': 'https://stream.new/v/OCtRWZiZqKvLbnZ32WSEYiGNvHdAmB01j/embed',
+        'info_dict': {
+            'ext': 'mp4',
+            'id': 'OCtRWZiZqKvLbnZ32WSEYiGNvHdAmB01j',
+            'title': 'OCtRWZiZqKvLbnZ32WSEYiGNvHdAmB01j',
+        },
+    }, {
+        'url': 'https://player.mux.com/OCtRWZiZqKvLbnZ32WSEYiGNvHdAmB01j',
+        'info_dict': {
+            'ext': 'mp4',
+            'id': 'OCtRWZiZqKvLbnZ32WSEYiGNvHdAmB01j',
+            'title': 'OCtRWZiZqKvLbnZ32WSEYiGNvHdAmB01j',
+        },
+    }]
+    _WEBPAGE_TESTS = [{
+        # iframe embed
+        'url': 'https://www.redbrickai.com/blog/2025-07-14-FAST-brush',
+        'info_dict': {
+            'ext': 'mp4',
+            'id': 'cXhzAiW1AmsHY01eRbEYFcTEAn0102aGN8sbt8JprP6Dfw',
+            'title': 'cXhzAiW1AmsHY01eRbEYFcTEAn0102aGN8sbt8JprP6Dfw',
+        },
+    }, {
+        # mux-player embed
+        'url': 'https://muxvideo.2coders.com/download/',
+        'info_dict': {
+            'ext': 'mp4',
+            'id': 'JBuasdg35Hw7tYmTe9k68QLPQKixL300YsWHDz5Flit8',
+            'title': 'JBuasdg35Hw7tYmTe9k68QLPQKixL300YsWHDz5Flit8',
+        },
+    }, {
+        # mux-player with title metadata
+        'url': 'https://datastar-todomvc.cross.stream/',
+        'info_dict': {
+            'ext': 'mp4',
+            'id': 'KX01ZSZ8CXv5SVfVwMZKJTcuBcUQmo1ReS9U5JjoHm4k',
+            'title': 'TodoMVC with Datastar Tutorial',
+        },
+    }]
+
+    @classmethod
+    def _extract_embed_urls(cls, url, webpage):
+        yield from super()._extract_embed_urls(url, webpage)
+        for mux_player in re.findall(r'<mux-(?:player|video)\b[^>]*\bplayback-id=[^>]+>', webpage):
+            attrs = extract_attributes(mux_player)
+            playback_id = attrs.get('playback-id')
+            if not playback_id:
+                continue
+            token = attrs.get('playback-token') or traverse_obj(playback_id, ({parse_qs}, 'token', -1))
+            playback_id = playback_id.partition('?')[0]
+
+            embed_url = update_url_query(
+                f'https://player.mux.com/{playback_id}',
+                filter_dict({'playback-token': token}))
+            if title := attrs.get('metadata-video-title'):
+                embed_url = smuggle_url(embed_url, {'title': title})
+            yield embed_url
+
+    def _real_extract(self, url):
+        url, smuggled_data = unsmuggle_url(url, {})
+        video_id = self._match_id(url)
+
+        token = traverse_obj(parse_qs(url), ('playback-token', -1))
+
+        formats, subtitles = self._extract_m3u8_formats_and_subtitles(
+            f'https://stream.mux.com/{video_id}.m3u8', video_id, 'mp4',
+            query=filter_dict({'token': token}))
+
+        return {
+            'id': video_id,
+            'title': smuggled_data.get('title') or video_id,
+            'formats': formats,
+            'subtitles': subtitles,
+        }