diff --git a/hed/scripts/__init__.py b/hed/scripts/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/hed/scripts/convert_and_update_schema.py b/hed/scripts/convert_and_update_schema.py
new file mode 100644
index 00000000..38d72320
--- /dev/null
+++ b/hed/scripts/convert_and_update_schema.py
@@ -0,0 +1,78 @@
+from hed.schema import load_schema_version
+from hed.scripts.script_util import sort_base_schemas, validate_all_schemas, add_extension
+from hed.schema.schema_io.df2schema import load_dataframes
+from hed.schema.schema_io.ontology_util import update_dataframes_from_schema, save_dataframes
+from hed.schema.hed_schema_io import load_schema, from_dataframes
+import argparse
+
+
+def convert_and_update(filenames, set_ids):
+    """ Validate, convert, and update as needed all schemas listed in filenames
+
+        If any schema fails to validate, no schemas will be updated.
+
+    Parameters:
+        filenames(list of str): A list of filenames that have been updated
+        set_ids(bool): If True, assign missing hedIds
+    """
+    # Find and group the changed files
+    schema_files = sort_base_schemas(filenames)
+    all_issues = validate_all_schemas(schema_files)
+
+    if all_issues or not schema_files:
+        print("Did not attempt to update schemas due to validation failures")
+        return 1
+
+    updated = []
+    # If we are here, we have validated the schemas(and if there's more than one version changed, that they're the same)
+    for basename, extensions in schema_files.items():
+        # Skip any with multiple extensions or not in pre-release
+        if "prerelease" not in basename:
+            print(f"Skipping updates on {basename}, not in a prerelease folder.")
+            continue
+        source_filename = add_extension(basename,
+                                        list(extensions)[0])  # Load any changed schema version, they're all the same
+        source_df_filename = add_extension(basename, ".tsv")
+        schema = load_schema(source_filename)
+        print(f"Trying to convert/update file {source_filename}")
+        source_dataframes = load_dataframes(source_df_filename)
+        # todo: We need a more robust system for if some files are missing
+        #  (especially for library schemas which will probably lack some)
+        if any(value is None for value in source_dataframes.values()):
+            source_dataframes = schema.get_as_dataframes()
+
+        result = update_dataframes_from_schema(source_dataframes, schema, assign_missing_ids=set_ids)
+
+        schema_reloaded = from_dataframes(result)
+        schema_reloaded.save_as_mediawiki(basename + ".mediawiki")
+        schema_reloaded.save_as_xml(basename + ".xml")
+
+        save_dataframes(source_df_filename, result)
+        updated.append(basename)
+
+    for basename in updated:
+        print(f"Schema {basename} updated.")
+
+    if not updated:
+        print("Did not update any schemas")
+    return 0
+
+
+def main():
+    parser = argparse.ArgumentParser(description='Update other schema formats based on the changed one.')
+    parser.add_argument('filenames', nargs='*', help='List of files to process')
+    parser.add_argument('--set-ids', action='store_true', help='Set IDs for each file')
+
+    args = parser.parse_args()
+
+    filenames = args.filenames
+    set_ids = args.set_ids
+
+    # Trigger a local cache hit (this ensures trying to load withStandard schemas will work properly)
+    _ = load_schema_version("8.2.0")
+
+    return convert_and_update(filenames, set_ids)
+
+
+if __name__ == "__main__":
+    exit(main())
diff --git a/hed/scripts/script_util.py b/hed/scripts/script_util.py
new file mode 100644
index 00000000..07605ce3
--- /dev/null
+++ b/hed/scripts/script_util.py
@@ -0,0 +1,151 @@
+import os.path
+from collections import defaultdict
+from hed.schema import from_string, load_schema
+from hed.errors import get_printable_issue_string, HedFileError, SchemaWarnings
+
+all_extensions = [".tsv", ".mediawiki", ".xml"]
+
+
+def validate_schema(file_path):
+    """ Validates the given schema, ensuring it can save/load as well as validates.
+
+        This is probably overkill...
+    """
+    validation_issues = []
+    try:
+        base_schema = load_schema(file_path)
+        issues = base_schema.check_compliance()
+        issues = [issue for issue in issues if issue["code"] != SchemaWarnings.SCHEMA_PRERELEASE_VERSION_USED]
+        if issues:
+            error_message = get_printable_issue_string(issues, title=file_path)
+            validation_issues.append(error_message)
+
+        mediawiki_string = base_schema.get_as_mediawiki_string()
+        reloaded_schema = from_string(mediawiki_string, schema_format=".mediawiki")
+
+        if reloaded_schema != base_schema:
+            error_text = f"Failed to reload {file_path} as mediawiki.  " \
+                         f"There is either a problem with the source file, or the saving/loading code."
+            validation_issues.append(error_text)
+
+        xml_string = base_schema.get_as_xml_string()
+        reloaded_schema = from_string(xml_string, schema_format=".xml")
+
+        if reloaded_schema != base_schema:
+            error_text = f"Failed to reload {file_path} as xml.  " \
+                         f"There is either a problem with the source file, or the saving/loading code."
+            validation_issues.append(error_text)
+    except HedFileError as e:
+        print(f"Saving/loading error: {e.message}")
+        error_text = e.message
+        if e.issues:
+            error_text = get_printable_issue_string(e.issues, title=file_path)
+        validation_issues.append(error_text)
+
+    return validation_issues
+
+
+def add_extension(basename, extension):
+    """Generate the final name for a given extension.  Only .tsv varies notably."""
+    if extension == ".tsv":
+        parent_path, basename = os.path.split(basename)
+        return os.path.join(parent_path, "hedtsv", basename)
+    return basename + extension
+
+
+def sort_base_schemas(filenames):
+    """ Sort and group the changed files based on basename
+
+        Example input: ["test_schema.mediawiki", "hedtsv/test_schema/test_schema_Tag.tsv", "other_schema.xml"]
+
+        Example output:
+        {
+        "test_schema": {".mediawiki", ".tsv"},
+        other_schema": {".xml"}
+        }
+
+    Parameters:
+        filenames(list or container): The changed filenames
+
+    Returns:
+        sorted_files(dict): A dictionary where keys are the basename, and the values are a set of extensions modified
+                            Can include tsv, mediawiki, and xml.
+    """
+    schema_files = defaultdict(set)
+    for file_path in filenames:
+        basename, extension = os.path.splitext(file_path.lower())
+        if extension == ".xml" or extension == ".mediawiki":
+            schema_files[basename].add(extension)
+            continue
+        elif extension == ".tsv":
+            tsv_basename = basename.rpartition("_")[0]
+            full_parent_path, real_basename = os.path.split(tsv_basename)
+            full_parent_path, real_basename2 = os.path.split(full_parent_path)
+            real_parent_path, hedtsv_folder = os.path.split(full_parent_path)
+            if hedtsv_folder != "hedtsv":
+                print(f"Ignoring file {file_path}.  .tsv files must be in an 'hedtsv' subfolder.")
+                continue
+            if real_basename != real_basename2:
+                print(f"Ignoring file {file_path}.  .tsv files must be in a subfolder with the same name.")
+                continue
+            real_name = os.path.join(real_parent_path, real_basename)
+            schema_files[real_name].add(extension)
+        else:
+            print(f"Ignoring file {file_path}")
+
+    return schema_files
+
+
+def validate_all_schema_formats(basename):
+    """ Validate all 3 versions of the given schema.
+
+    Parameters:
+         basename(str): a schema to check all 3 formats are identical of.
+
+    Returns:
+        issue_list(list): A non-empty list if there are any issues.
+    """
+    # Note if more than one is changed, it intentionally checks all 3 even if one wasn't changed.
+    paths = [add_extension(basename, extension) for extension in all_extensions]
+    try:
+        schemas = [load_schema(path) for path in paths]
+        all_equal = all(obj == schemas[0] for obj in schemas[1:])
+        if not all_equal:
+            return [
+                f"Multiple schemas of type {basename} were modified, and are not equal.\n"
+                f"Only modify one source schema type at a time(mediawiki, xml, tsv), or modify all 3 at once."]
+    except HedFileError as e:
+        error_message = f"Error loading schema: {e.message}"
+        return [error_message]
+
+    return []
+
+
+def validate_all_schemas(schema_files):
+    """Validates all the schema files/formats in the schema dict
+
+       If multiple formats were edited, ensures all 3 formats exist and match.
+
+    Parameters:
+        schema_files(dict of sets): basename:[extensions] dictionary for all files changed
+
+    Returns:
+        issues(list of str): Any issues found validating or loading schemas.
+    """
+    all_issues = []
+    for basename, extensions in schema_files.items():
+        single_schema_issues = []
+        for extension in extensions:
+            full_path = add_extension(basename, extension)
+            single_schema_issues += validate_schema(full_path)
+
+        if len(extensions) > 1 and not single_schema_issues and "prerelease" in basename:
+            single_schema_issues += validate_all_schema_formats(basename)
+
+        print(f"Validating {basename}...")
+        if single_schema_issues:
+            for issue in single_schema_issues:
+                print(issue)
+
+        all_issues += single_schema_issues
+    return all_issues
diff --git a/hed/scripts/validate_schemas.py b/hed/scripts/validate_schemas.py
new file mode 100644
index 00000000..43c2bf17
--- /dev/null
+++ b/hed/scripts/validate_schemas.py
@@ -0,0 +1,22 @@
+import sys
+from hed.schema import load_schema_version
+from hed.scripts.script_util import validate_all_schemas, sort_base_schemas
+
+
+def main(arg_list=None):
+    # Trigger a local cache hit
+    _ = load_schema_version("8.2.0")
+
+    if not arg_list:
+        arg_list = sys.argv[1:]
+
+    schema_files = sort_base_schemas(arg_list)
+    issues = validate_all_schemas(schema_files)
+
+    if issues:
+        return 1
+    return 0
+
+
+if __name__ == "__main__":
+    exit(main())
diff --git a/pyproject.toml b/pyproject.toml
index 1dde170f..1d34b246 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,6 +55,8 @@ dependencies = [
 run_remodel = "hed.tools.remodeling.cli.run_remodel:main"
 run_remodel_backup = "hed.tools.remodeling.cli.run_remodel_backup:main"
 run_remodel_restore = "hed.tools.remodeling.cli.run_remodel_restore:main"
+hed_validate_schemas = "hed.scripts.validate_schemas:main"
+hed_update_schemas = "hed.scripts.convert_and_update_schema:main"
 
 [tool.versioneer]
 VCS = "git"
diff --git a/tests/schema/test_schema_attribute_validators.py b/tests/schema/test_schema_attribute_validators.py
index 9d9a6bf1..95bdd550 100644
--- a/tests/schema/test_schema_attribute_validators.py
+++ b/tests/schema/test_schema_attribute_validators.py
@@ -90,7 +90,7 @@ def test_deprecatedFrom(self):
         self.assertTrue(schema_attribute_validators.tag_is_deprecated_check(self.hed_schema, tag_entry, attribute_name))
         del tag_entry.attributes["deprecatedFrom"]
 
-        unit_class_entry = self.hed_schema.unit_classes["temperatureUnits"]
+        unit_class_entry = copy.deepcopy(self.hed_schema.unit_classes["temperatureUnits"])
         # This should raise an issue because it assumes the attribute is set
         self.assertTrue(schema_attribute_validators.tag_is_deprecated_check(self.hed_schema, unit_class_entry, attribute_name))
         unit_class_entry.attributes["deprecatedFrom"] = "8.1.0"
diff --git a/tests/scripts/__init__.py b/tests/scripts/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/scripts/test_convert_and_update_schema.py b/tests/scripts/test_convert_and_update_schema.py
new file mode 100644
index 00000000..48e419a4
--- /dev/null
+++ b/tests/scripts/test_convert_and_update_schema.py
@@ -0,0 +1,90 @@
+import unittest
+import os
+import shutil
+import copy
+from hed import load_schema, load_schema_version
+from hed.schema import HedSectionKey, HedKey
+from hed.scripts.script_util import add_extension
+from hed.scripts.convert_and_update_schema import convert_and_update
+
+
+class TestConvertAndUpdate(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        # Create a temporary directory for schema files
+        cls.base_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'schemas_update', 'prerelease')
+        if not os.path.exists(cls.base_path):
+            os.makedirs(cls.base_path)
+
+    def test_schema_conversion_and_update(self):
+        # Load a known schema, modify it if necessary, and save it
+        schema = load_schema_version("8.3.0")
+        original_name = os.path.join(self.base_path, "test_schema.mediawiki")
+        schema.save_as_mediawiki(original_name)
+
+        # Assume filenames updated includes just the original schema file for simplicity
+        filenames = [original_name]
+        result = convert_and_update(filenames, set_ids=False)
+
+        # Verify no error from convert_and_update and the correct schema version was saved
+        self.assertEqual(result, 0)
+
+        tsv_filename = add_extension(os.path.join(self.base_path, "test_schema"), ".tsv")
+        schema_reload1 = load_schema(tsv_filename)
+        schema_reload2 = load_schema(os.path.join(self.base_path, "test_schema.xml"))
+
+        self.assertEqual(schema, schema_reload1)
+        self.assertEqual(schema, schema_reload2)
+
+        # Now verify after doing this again with a new schema, they're still the same.
+        schema = load_schema_version("8.2.0")
+        schema.save_as_dataframes(tsv_filename)
+
+        filenames = [os.path.join(tsv_filename, "test_schema_Tag.tsv")]
+        result = convert_and_update(filenames, set_ids=False)
+
+        # Verify no error from convert_and_update and the correct schema version was saved
+        self.assertEqual(result, 0)
+
+        schema_reload1 = load_schema(os.path.join(self.base_path, "test_schema.mediawiki"))
+        schema_reload2 = load_schema(os.path.join(self.base_path, "test_schema.xml"))
+
+        self.assertEqual(schema, schema_reload1)
+        self.assertEqual(schema, schema_reload2)
+
+    def test_schema_adding_tag(self):
+        schema = load_schema_version("8.3.0")
+        basename = os.path.join(self.base_path, "test_schema_edited")
+        schema.save_as_mediawiki(add_extension(basename, ".mediawiki"))
+        schema.save_as_xml(add_extension(basename, ".xml"))
+        schema.save_as_dataframes(add_extension(basename, ".tsv"))
+
+        schema_edited = copy.deepcopy(schema)
+        test_tag_name = "NewTagWithoutID"
+        new_entry = schema_edited._create_tag_entry(test_tag_name, HedSectionKey.Tags)
+        schema_edited._add_tag_to_dict(test_tag_name, new_entry, HedSectionKey.Tags)
+
+        schema_edited.save_as_mediawiki(add_extension(basename, ".mediawiki"))
+
+        # Assume filenames updated includes just the original schema file for simplicity
+        filenames = [add_extension(basename, ".mediawiki")]
+        result = convert_and_update(filenames, set_ids=False)
+        self.assertEqual(result, 0)
+
+        schema_reloaded = load_schema(add_extension(basename, ".xml"))
+
+        self.assertEqual(schema_reloaded, schema_edited)
+
+        result = convert_and_update(filenames, set_ids=True)
+        self.assertEqual(result, 0)
+
+        schema_reloaded = load_schema(add_extension(basename, ".xml"))
+
+        reloaded_entry = schema_reloaded.tags[test_tag_name]
+        self.assertTrue(reloaded_entry.has_attribute(HedKey.HedID))
+
+
+    @classmethod
+    def tearDownClass(cls):
+        # Clean up the directory created for testing
+        shutil.rmtree(cls.base_path)
diff --git a/tests/scripts/test_script_util.py b/tests/scripts/test_script_util.py
new file mode 100644
index 00000000..5c8f1fb9
--- /dev/null
+++ b/tests/scripts/test_script_util.py
@@ -0,0 +1,121 @@
+import unittest
+import os
+import shutil
+from hed import load_schema_version
+from hed.scripts.script_util import add_extension, sort_base_schemas, validate_all_schema_formats
+
+
+class TestAddExtension(unittest.TestCase):
+
+    def test_regular_extension(self):
+        """Test that regular extensions are added correctly."""
+        self.assertEqual(add_extension("filename", ".txt"), "filename.txt")
+        self.assertEqual(add_extension("document", ".pdf"), "document.pdf")
+
+    def test_tsv_extension(self):
+        """Test that .tsv extensions are handled differently."""
+        # Assuming the function correctly handles paths with directories
+        self.assertEqual(add_extension("path/to/filename", ".tsv"), "path/to/hedtsv/filename")
+        # Testing with a basename only
+        self.assertEqual(add_extension("filename", ".tsv"), "hedtsv/filename")
+
+    def test_empty_extension(self):
+        """Test adding an empty extension."""
+        self.assertEqual(add_extension("filename", ""), "filename")
+
+    def test_none_extension(self):
+        """Test behavior with None as extension."""
+        with self.assertRaises(TypeError):
+            add_extension("filename", None)
+
+class TestSortBaseSchemas(unittest.TestCase):
+    def test_mixed_file_types(self):
+        filenames = [
+            "test_schema.mediawiki",
+            "hedtsv/test_schema/test_schema_Tag.tsv",
+            "other_schema.xml"
+        ]
+        expected = {
+            "test_schema": {".mediawiki", ".tsv"},
+            "other_schema": {".xml"}
+        }
+        result = sort_base_schemas(filenames)
+        self.assertEqual(dict(result), expected)
+
+    def test_tsv_in_correct_subfolder(self):
+        filenames = [
+            "hedtsv/test_schema/test_schema_Tag.tsv",
+            "hedtsv/test_schema/test_schema_Tag.tsv",
+            "hedtsv/wrong_folder/wrong_name_Tag.tsv"  # Should be ignored
+        ]
+        expected = {
+            "test_schema": {".tsv"}
+        }
+        result = sort_base_schemas(filenames)
+        self.assertEqual(dict(result), expected)
+
+    def test_tsv_in_correct_subfolder2(self):
+        filenames = [
+            "prerelease/hedtsv/test_schema/test_schema_Tag.tsv",
+            "prerelease/hedtsv/test_schema/test_schema_Tag.tsv",
+            "prerelease/hedtsv/wrong_folder/wrong_name_Tag.tsv"  # Should be ignored
+        ]
+        expected = {
+            "prerelease/test_schema": {".tsv"}
+        }
+        result = sort_base_schemas(filenames)
+        self.assertEqual(dict(result), expected)
+
+    def test_ignored_files(self):
+        filenames = [
+            "test_schema.mediawiki",
+            "not_hedtsv/test_schema/test_schema_Tag.tsv"  # Should be ignored
+        ]
+        expected = {
+            "test_schema": {".mediawiki"}
+        }
+        result = sort_base_schemas(filenames)
+        self.assertEqual(dict(result), expected)
+
+    def test_empty_input(self):
+        filenames = []
+        expected = {}
+        result = sort_base_schemas(filenames)
+        self.assertEqual(dict(result), expected)
+
+
+class TestValidateAllSchemaFormats(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        # Determine the path to save schemas based on the location of this test file
+        cls.base_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'schemas')
+        if not os.path.exists(cls.base_path):
+            os.makedirs(cls.base_path)
+        cls.basename = "test_schema"
+
+    def test_error_no_error(self):
+        """Test the function with correctly saved schemas in all three formats."""
+        # Load specific schema versions and save them correctly
+        schema = load_schema_version("8.3.0")
+        schema.save_as_xml(os.path.join(self.base_path, self.basename + ".xml"))
+        schema.save_as_dataframes(os.path.join(self.base_path, "hedtsv", self.basename))
+        issues = validate_all_schema_formats(os.path.join(self.base_path, self.basename))
+        self.assertTrue(issues)
+        self.assertIn("Error loading schema", issues[0])
+
+        schema.save_as_mediawiki(os.path.join(self.base_path, self.basename + ".mediawiki"))
+
+        self.assertEqual(validate_all_schema_formats(os.path.join(self.base_path, self.basename)), [])
+
+        schema_incorrect = load_schema_version("8.2.0")
+        schema_incorrect.save_as_dataframes(os.path.join(self.base_path, "hedtsv", self.basename))
+
+        # Validate and expect errors
+        issues = validate_all_schema_formats(os.path.join(self.base_path, self.basename))
+        self.assertTrue(issues)
+        self.assertIn("Multiple schemas of type", issues[0])
+
+    @classmethod
+    def tearDownClass(cls):
+        """Remove the entire directory created for testing to ensure a clean state."""
+        shutil.rmtree(cls.base_path)  # This will delete the directory and all its contents