diff --git a/yt_dlp/extractor/_extractors.py b/yt_dlp/extractor/_extractors.py
index cb41381275..4f74a91352 100644
--- a/yt_dlp/extractor/_extractors.py
+++ b/yt_dlp/extractor/_extractors.py
@@ -1523,10 +1523,6 @@ from .piramidetv import (
     PiramideTVChannelIE,
     PiramideTVIE,
 )
-from .pixivsketch import (
-    PixivSketchIE,
-    PixivSketchUserIE,
-)
 from .planetmarathi import PlanetMarathiIE
 from .platzi import (
     PlatziCourseIE,
diff --git a/yt_dlp/extractor/pixivsketch.py b/yt_dlp/extractor/pixivsketch.py
deleted file mode 100644
index 50b7af5354..0000000000
--- a/yt_dlp/extractor/pixivsketch.py
+++ /dev/null
@@ -1,119 +0,0 @@
-from .common import InfoExtractor
-from ..networking.exceptions import HTTPError
-from ..utils import (
-    ExtractorError,
-    traverse_obj,
-    unified_timestamp,
-)
-
-
-class PixivSketchBaseIE(InfoExtractor):
-    def _call_api(self, video_id, path, referer, note='Downloading JSON metadata'):
-        response = self._download_json(f'https://sketch.pixiv.net/api/{path}', video_id, note=note, headers={
-            'Referer': referer,
-            'X-Requested-With': referer,
-        })
-        errors = traverse_obj(response, ('errors', ..., 'message'))
-        if errors:
-            raise ExtractorError(' '.join(f'{e}.' for e in errors))
-        return response.get('data') or {}
-
-
-class PixivSketchIE(PixivSketchBaseIE):
-    IE_NAME = 'pixiv:sketch'
-    _VALID_URL = r'https?://sketch\.pixiv\.net/@(?P<uploader_id>[a-zA-Z0-9_-]+)/lives/(?P<id>\d+)/?'
-    _TESTS = [{
-        'url': 'https://sketch.pixiv.net/@nuhutya/lives/3654620468641830507',
-        'info_dict': {
-            'id': '7370666691623196569',
-            'title': 'まにあえクリスマス！',
-            'uploader': 'ぬふちゃ',
-            'uploader_id': 'nuhutya',
-            'channel_id': '9844815',
-            'age_limit': 0,
-            'timestamp': 1640351536,
-        },
-        'skip': True,
-    }, {
-        # these two (age_limit > 0) requires you to login on website, but it's actually not required for download
-        'url': 'https://sketch.pixiv.net/@namahyou/lives/4393103321546851377',
-        'info_dict': {
-            'id': '4907995960957946943',
-            'title': 'クリスマスなんて知らん🖕',
-            'uploader': 'すゃもり',
-            'uploader_id': 'suya2mori2',
-            'channel_id': '31169300',
-            'age_limit': 15,
-            'timestamp': 1640347640,
-        },
-        'skip': True,
-    }, {
-        'url': 'https://sketch.pixiv.net/@8aki/lives/3553803162487249670',
-        'info_dict': {
-            'id': '1593420639479156945',
-            'title': 'おまけ本作業(リョナ有)',
-            'uploader': 'おぶい / Obui',
-            'uploader_id': 'oving',
-            'channel_id': '17606',
-            'age_limit': 18,
-            'timestamp': 1640330263,
-        },
-        'skip': True,
-    }]
-
-    def _real_extract(self, url):
-        video_id, uploader_id = self._match_valid_url(url).group('id', 'uploader_id')
-        data = self._call_api(video_id, f'lives/{video_id}.json', url)
-
-        if not traverse_obj(data, 'is_broadcasting'):
-            raise ExtractorError(f'This live is offline. Use https://sketch.pixiv.net/@{uploader_id} for ongoing live.', expected=True)
-
-        m3u8_url = traverse_obj(data, ('owner', 'hls_movie', 'url'))
-        formats = self._extract_m3u8_formats(
-            m3u8_url, video_id, ext='mp4',
-            entry_protocol='m3u8_native', m3u8_id='hls')
-
-        return {
-            'id': video_id,
-            'title': data.get('name'),
-            'formats': formats,
-            'uploader': traverse_obj(data, ('user', 'name'), ('owner', 'user', 'name')),
-            'uploader_id': traverse_obj(data, ('user', 'unique_name'), ('owner', 'user', 'unique_name')),
-            'channel_id': str(traverse_obj(data, ('user', 'pixiv_user_id'), ('owner', 'user', 'pixiv_user_id'))),
-            'age_limit': 18 if data.get('is_r18') else 15 if data.get('is_r15') else 0,
-            'timestamp': unified_timestamp(data.get('created_at')),
-            'is_live': True,
-        }
-
-
-class PixivSketchUserIE(PixivSketchBaseIE):
-    IE_NAME = 'pixiv:sketch:user'
-    _VALID_URL = r'https?://sketch\.pixiv\.net/@(?P<id>[a-zA-Z0-9_-]+)/?'
-    _TESTS = [{
-        'url': 'https://sketch.pixiv.net/@nuhutya',
-        'only_matching': True,
-    }, {
-        'url': 'https://sketch.pixiv.net/@namahyou',
-        'only_matching': True,
-    }, {
-        'url': 'https://sketch.pixiv.net/@8aki',
-        'only_matching': True,
-    }]
-
-    @classmethod
-    def suitable(cls, url):
-        return super().suitable(url) and not PixivSketchIE.suitable(url)
-
-    def _real_extract(self, url):
-        user_id = self._match_id(url)
-        data = self._call_api(user_id, f'lives/users/@{user_id}.json', url)
-
-        if not traverse_obj(data, 'is_broadcasting'):
-            try:
-                self._call_api(user_id, 'users/current.json', url, 'Investigating reason for request failure')
-            except ExtractorError as e:
-                if isinstance(e.cause, HTTPError) and e.cause.status == 401:
-                    self.raise_login_required(f'Please log in, or use direct link like https://sketch.pixiv.net/@{user_id}/1234567890', method='cookies')
-            raise ExtractorError('This user is offline', expected=True)
-
-        return self.url_result(f'https://sketch.pixiv.net/@{user_id}/lives/{data["id"]}')