diff --git a/mindee/input/__init__.py b/mindee/input/__init__.py
index 008d880d..3c75c072 100644
--- a/mindee/input/__init__.py
+++ b/mindee/input/__init__.py
@@ -1,12 +1,9 @@
 from mindee.input.local_response import LocalResponse
 from mindee.input.page_options import PageOptions
-from mindee.input.sources import (
-    Base64Input,
-    BytesInput,
-    FileInput,
-    InputType,
-    LocalInputSource,
-    PathInput,
-    UrlInputSource,
-)
+from mindee.input.sources.base_64_input import Base64Input
+from mindee.input.sources.bytes_input import BytesInput
+from mindee.input.sources.file_input import FileInput
+from mindee.input.sources.local_input_source import InputType, LocalInputSource
+from mindee.input.sources.path_input import PathInput
+from mindee.input.sources.url_input_source import UrlInputSource
 from mindee.input.workflow_options import WorkflowOptions
diff --git a/mindee/input/sources/__init__.py b/mindee/input/sources/__init__.py
new file mode 100644
index 00000000..6f8a51e3
--- /dev/null
+++ b/mindee/input/sources/__init__.py
@@ -0,0 +1,6 @@
+from mindee.input.sources.base_64_input import Base64Input
+from mindee.input.sources.bytes_input import BytesInput
+from mindee.input.sources.file_input import FileInput
+from mindee.input.sources.local_input_source import InputType, LocalInputSource
+from mindee.input.sources.path_input import PathInput
+from mindee.input.sources.url_input_source import UrlInputSource
diff --git a/mindee/input/sources/base_64_input.py b/mindee/input/sources/base_64_input.py
new file mode 100644
index 00000000..b651bd23
--- /dev/null
+++ b/mindee/input/sources/base_64_input.py
@@ -0,0 +1,20 @@
+import base64
+import io
+
+from mindee.input.sources.local_input_source import InputType, LocalInputSource
+
+
+class Base64Input(LocalInputSource):
+    """Base64-encoded text input."""
+
+    def __init__(self, base64_string: str, filename: str) -> None:
+        """
+        Input document from a base64 encoded string.
+
+        :param base64_string: Raw data as a base64 encoded string
+        :param filename: File name of the input
+        """
+        self.file_object = io.BytesIO(base64.standard_b64decode(base64_string))
+        self.filename = filename
+        self.filepath = None
+        super().__init__(input_type=InputType.BASE64)
diff --git a/mindee/input/sources/bytes_input.py b/mindee/input/sources/bytes_input.py
new file mode 100644
index 00000000..13fbf41d
--- /dev/null
+++ b/mindee/input/sources/bytes_input.py
@@ -0,0 +1,19 @@
+import io
+
+from mindee.input.sources.local_input_source import InputType, LocalInputSource
+
+
+class BytesInput(LocalInputSource):
+    """Raw bytes input."""
+
+    def __init__(self, raw_bytes: bytes, filename: str) -> None:
+        """
+        Input document from raw bytes (no buffer).
+
+        :param raw_bytes: Raw data as bytes
+        :param filename: File name of the input
+        """
+        self.file_object = io.BytesIO(raw_bytes)
+        self.filename = filename
+        self.filepath = None
+        super().__init__(input_type=InputType.BYTES)
diff --git a/mindee/input/sources/file_input.py b/mindee/input/sources/file_input.py
new file mode 100644
index 00000000..561fd754
--- /dev/null
+++ b/mindee/input/sources/file_input.py
@@ -0,0 +1,23 @@
+import os
+from typing import BinaryIO
+
+from mindee.input.sources.local_input_source import InputType, LocalInputSource
+
+
+class FileInput(LocalInputSource):
+    """A binary file input."""
+
+    def __init__(self, file: BinaryIO) -> None:
+        """
+        Input document from a Python binary file object.
+
+        Note: the calling function is responsible for closing the file.
+
+        :param file: FileIO object
+        """
+        assert file.name, "File name must be set"
+
+        self.file_object = file
+        self.filename = os.path.basename(file.name)
+        self.filepath = file.name
+        super().__init__(input_type=InputType.FILE)
diff --git a/mindee/input/sources.py b/mindee/input/sources/local_input_source.py
similarity index 72%
rename from mindee/input/sources.py
rename to mindee/input/sources/local_input_source.py
index fd0f9831..ef5bcaf5 100644
--- a/mindee/input/sources.py
+++ b/mindee/input/sources/local_input_source.py
@@ -1,11 +1,8 @@
-import base64
 import io
 import mimetypes
-import os
 import tempfile
 from enum import Enum
-from pathlib import Path
-from typing import BinaryIO, Optional, Sequence, Tuple, Union
+from typing import BinaryIO, Optional, Sequence, Tuple
 
 import pypdfium2 as pdfium
 
@@ -205,91 +202,3 @@ def read_contents(self, close_file: bool) -> Tuple[str, bytes]:
     def close(self) -> None:
         """Close the file object."""
         self.file_object.close()
-
-
-class FileInput(LocalInputSource):
-    """A binary file input."""
-
-    def __init__(self, file: BinaryIO) -> None:
-        """
-        Input document from a Python binary file object.
-
-        Note: the calling function is responsible for closing the file.
-
-        :param file: FileIO object
-        """
-        assert file.name, "File name must be set"
-
-        self.file_object = file
-        self.filename = os.path.basename(file.name)
-        self.filepath = file.name
-        super().__init__(input_type=InputType.FILE)
-
-
-class PathInput(LocalInputSource):
-    """A local path input."""
-
-    def __init__(self, filepath: Union[Path, str]) -> None:
-        """
-        Input document from a path.
-
-        :param filepath: Path to open
-        """
-        self.file_object = open(filepath, "rb")  # pylint: disable=consider-using-with
-        self.filename = os.path.basename(filepath)
-        self.filepath = str(filepath)
-        super().__init__(input_type=InputType.PATH)
-
-
-class BytesInput(LocalInputSource):
-    """Raw bytes input."""
-
-    def __init__(self, raw_bytes: bytes, filename: str) -> None:
-        """
-        Input document from raw bytes (no buffer).
-
-        :param raw_bytes: Raw data as bytes
-        :param filename: File name of the input
-        """
-        self.file_object = io.BytesIO(raw_bytes)
-        self.filename = filename
-        self.filepath = None
-        super().__init__(input_type=InputType.BYTES)
-
-
-class Base64Input(LocalInputSource):
-    """Base64-encoded text input."""
-
-    def __init__(self, base64_string: str, filename: str) -> None:
-        """
-        Input document from a base64 encoded string.
-
-        :param base64_string: Raw data as a base64 encoded string
-        :param filename: File name of the input
-        """
-        self.file_object = io.BytesIO(base64.standard_b64decode(base64_string))
-        self.filename = filename
-        self.filepath = None
-        super().__init__(input_type=InputType.BASE64)
-
-
-class UrlInputSource:
-    """A local or distant URL input."""
-
-    url: str
-    """The Uniform Resource Locator."""
-
-    def __init__(self, url: str) -> None:
-        """
-        Input document from a base64 encoded string.
-
-        :param url: URL to send, must be HTTPS
-        """
-        if not url.lower().startswith("https"):
-            raise MindeeSourceError("URL must be HTTPS")
-
-        self.input_type = InputType.URL
-
-        logger.debug("URL input: %s", url)
-
-        self.url = url
diff --git a/mindee/input/sources/path_input.py b/mindee/input/sources/path_input.py
new file mode 100644
index 00000000..3f9698b4
--- /dev/null
+++ b/mindee/input/sources/path_input.py
@@ -0,0 +1,20 @@
+import os
+from pathlib import Path
+from typing import Union
+
+from mindee.input.sources.local_input_source import InputType, LocalInputSource
+
+
+class PathInput(LocalInputSource):
+    """A local path input."""
+
+    def __init__(self, filepath: Union[Path, str]) -> None:
+        """
+        Input document from a path.
+
+        :param filepath: Path to open
+        """
+        self.file_object = open(filepath, "rb")  # pylint: disable=consider-using-with
+        self.filename = os.path.basename(filepath)
+        self.filepath = str(filepath)
+        super().__init__(input_type=InputType.PATH)
diff --git a/mindee/input/sources/url_input_source.py b/mindee/input/sources/url_input_source.py
new file mode 100644
index 00000000..4f26dc02
--- /dev/null
+++ b/mindee/input/sources/url_input_source.py
@@ -0,0 +1,25 @@
+from mindee.error.mindee_error import MindeeSourceError
+from mindee.input.sources.local_input_source import InputType
+from mindee.logger import logger
+
+
+class UrlInputSource:
+    """A local or distant URL input."""
+
+    url: str
+    """The Uniform Resource Locator."""
+
+    def __init__(self, url: str) -> None:
+        """
+        Input document from a base64 encoded string.
+
+        :param url: URL to send, must be HTTPS
+        """
+        if not url.lower().startswith("https"):
+            raise MindeeSourceError("URL must be HTTPS")
+
+        self.input_type = InputType.URL
+
+        logger.debug("URL input: %s", url)
+
+        self.url = url