diff --git a/zerver/actions/uploads.py b/zerver/actions/uploads.py
index 69c1bd52dc..1076b46674 100644
--- a/zerver/actions/uploads.py
+++ b/zerver/actions/uploads.py
@@ -3,8 +3,8 @@ from typing import Any
 
 from zerver.lib.attachments import get_old_unclaimed_attachments, validate_attachment_request
 from zerver.lib.markdown import MessageRenderingResult
-from zerver.lib.thumbnail import StoredThumbnailFormat
-from zerver.lib.upload import claim_attachment, delete_message_attachments, get_image_thumbnail_path
+from zerver.lib.thumbnail import StoredThumbnailFormat, get_image_thumbnail_path
+from zerver.lib.upload import claim_attachment, delete_message_attachments
 from zerver.models import (
     Attachment,
     ImageAttachment,
diff --git a/zerver/lib/thumbnail.py b/zerver/lib/thumbnail.py
index 8bde73fa7b..d5c8ba3c40 100644
--- a/zerver/lib/thumbnail.py
+++ b/zerver/lib/thumbnail.py
@@ -305,3 +305,19 @@ def maybe_thumbnail(attachment: AbstractAttachment, content: bytes) -> ImageAtta
             return image_row
     except BadImageError:
         return None
+
+
+def get_image_thumbnail_path(
+    image_attachment: ImageAttachment,
+    thumbnail_format: BaseThumbnailFormat,
+) -> str:
+    return f"thumbnail/{image_attachment.path_id}/{thumbnail_format!s}"
+
+
+def split_thumbnail_path(file_path: str) -> tuple[str, BaseThumbnailFormat]:
+    assert file_path.startswith("thumbnail/")
+    path_parts = file_path.split("/")
+    thumbnail_format = BaseThumbnailFormat.from_string(path_parts.pop())
+    assert thumbnail_format is not None
+    path_id = "/".join(path_parts[1:])
+    return path_id, thumbnail_format
diff --git a/zerver/lib/upload/__init__.py b/zerver/lib/upload/__init__.py
index f017917bae..003354bc94 100644
--- a/zerver/lib/upload/__init__.py
+++ b/zerver/lib/upload/__init__.py
@@ -22,21 +22,12 @@ from zerver.lib.thumbnail import (
     MEDIUM_AVATAR_SIZE,
     THUMBNAIL_ACCEPT_IMAGE_TYPES,
     BadImageError,
-    BaseThumbnailFormat,
     maybe_thumbnail,
     resize_avatar,
     resize_emoji,
 )
 from zerver.lib.upload.base import INLINE_MIME_TYPES, ZulipUploadBackend
-from zerver.models import (
-    Attachment,
-    ImageAttachment,
-    Message,
-    Realm,
-    RealmEmoji,
-    ScheduledMessage,
-    UserProfile,
-)
+from zerver.models import Attachment, Message, Realm, RealmEmoji, ScheduledMessage, UserProfile
 from zerver.models.users import is_cross_realm_bot_email
 
 
@@ -136,22 +127,6 @@ def sanitize_name(value: str) -> str:
     return value
 
 
-def get_image_thumbnail_path(
-    image_attachment: ImageAttachment,
-    thumbnail_format: BaseThumbnailFormat,
-) -> str:
-    return f"thumbnail/{image_attachment.path_id}/{thumbnail_format!s}"
-
-
-def split_thumbnail_path(file_path: str) -> tuple[str, BaseThumbnailFormat]:
-    assert file_path.startswith("thumbnail/")
-    path_parts = file_path.split("/")
-    thumbnail_format = BaseThumbnailFormat.from_string(path_parts.pop())
-    assert thumbnail_format is not None
-    path_id = "/".join(path_parts[1:])
-    return path_id, thumbnail_format
-
-
 def upload_message_attachment(
     uploaded_file_name: str,
     content_type: str,
diff --git a/zerver/management/commands/delete_old_unclaimed_attachments.py b/zerver/management/commands/delete_old_unclaimed_attachments.py
index 89da011479..3b37ef7868 100644
--- a/zerver/management/commands/delete_old_unclaimed_attachments.py
+++ b/zerver/management/commands/delete_old_unclaimed_attachments.py
@@ -9,11 +9,8 @@ from typing_extensions import override
 from zerver.actions.uploads import do_delete_old_unclaimed_attachments
 from zerver.lib.attachments import get_old_unclaimed_attachments
 from zerver.lib.management import ZulipBaseCommand, abort_unless_locked
-from zerver.lib.upload import (
-    all_message_attachments,
-    delete_message_attachments,
-    split_thumbnail_path,
-)
+from zerver.lib.thumbnail import split_thumbnail_path
+from zerver.lib.upload import all_message_attachments, delete_message_attachments
 from zerver.models import ArchivedAttachment, Attachment
 
 
diff --git a/zerver/tests/test_thumbnail.py b/zerver/tests/test_thumbnail.py
index de72cbaf07..603a206689 100644
--- a/zerver/tests/test_thumbnail.py
+++ b/zerver/tests/test_thumbnail.py
@@ -18,14 +18,12 @@ from zerver.lib.thumbnail import (
     BaseThumbnailFormat,
     StoredThumbnailFormat,
     ThumbnailFormat,
+    get_image_thumbnail_path,
     missing_thumbnails,
     resize_emoji,
-)
-from zerver.lib.upload import (
-    all_message_attachments,
-    get_image_thumbnail_path,
     split_thumbnail_path,
 )
+from zerver.lib.upload import all_message_attachments
 from zerver.models import Attachment, ImageAttachment
 from zerver.views.upload import closest_thumbnail_format
 from zerver.worker.thumbnail import ensure_thumbnails
diff --git a/zerver/views/upload.py b/zerver/views/upload.py
index e126991064..98cb79404a 100644
--- a/zerver/views/upload.py
+++ b/zerver/views/upload.py
@@ -35,10 +35,10 @@ from zerver.lib.thumbnail import (
     THUMBNAIL_OUTPUT_FORMATS,
     BaseThumbnailFormat,
     StoredThumbnailFormat,
+    get_image_thumbnail_path,
 )
 from zerver.lib.upload import (
     check_upload_within_quota,
-    get_image_thumbnail_path,
     get_public_upload_root_url,
     upload_message_attachment_from_request,
 )
diff --git a/zerver/worker/thumbnail.py b/zerver/worker/thumbnail.py
index b887c4672b..d9bba14fcc 100644
--- a/zerver/worker/thumbnail.py
+++ b/zerver/worker/thumbnail.py
@@ -9,8 +9,8 @@ from django.db import transaction
 from typing_extensions import override
 
 from zerver.lib.mime_types import guess_type
-from zerver.lib.thumbnail import StoredThumbnailFormat, missing_thumbnails
-from zerver.lib.upload import get_image_thumbnail_path, save_attachment_contents, upload_backend
+from zerver.lib.thumbnail import StoredThumbnailFormat, get_image_thumbnail_path, missing_thumbnails
+from zerver.lib.upload import save_attachment_contents, upload_backend
 from zerver.models import ImageAttachment
 from zerver.worker.base import QueueProcessingWorker, assign_queue