diff --git a/_validate/createJson.py b/_validate/createJson.py
index 9b8163c..d81f4ed 100644
--- a/_validate/createJson.py
+++ b/_validate/createJson.py
@@ -60,7 +60,7 @@ def generateJsonFile(
 	licenseName: str,
 	licenseUrl: str | None,
 ) -> None:
-	data = _createDataclassMatchingJsonSchema(
+	data = createDataclassMatchingJsonSchema(
 		manifest=manifest,
 		sha=getSha256(addonPath),
 		channel=channel,
@@ -99,7 +99,7 @@ def buildOutputFilePath(data: AddonData, parentDir: str) -> os.PathLike[str]:
 	return cast(os.PathLike[str], filePath)
 
 
-def _createDataclassMatchingJsonSchema(
+def createDataclassMatchingJsonSchema(
 	manifest: AddonManifest,
 	sha: str,
 	channel: str,
diff --git a/_validate/regenerateJson.py b/_validate/regenerateJson.py
new file mode 100644
index 0000000..d8395bf
--- /dev/null
+++ b/_validate/regenerateJson.py
@@ -0,0 +1,81 @@
+# Copyright (C) 2023-2026 NV Access Limited, Noelia Ruiz Martínez
+# This file may be used under the terms of the GNU General Public License, version 2 or later.
+# For more details see: https://www.gnu.org/licenses/gpl-2.0.html
+
+import argparse
+import glob
+import json
+from urllib.request import urlretrieve
+from dataclasses import asdict
+
+from .manifestLoader import getAddonManifest
+from .validate import checkSha256
+from .createJson import createDataclassMatchingJsonSchema
+
+
+def regenerateJsonFile(filePath: str, errorFilePath: str | None) -> None:
+	with open(filePath, encoding="utf-8") as f:
+		addonData = json.load(f)
+	if addonData.get("legacy"):
+		return
+	addonFilePath, _ = urlretrieve(addonData["URL"])
+	addonSha = addonData["sha256"]
+	checksumErrors = list(checkSha256(addonFilePath, addonSha))
+	if checksumErrors:
+		if errorFilePath:
+			with open(errorFilePath, "a") as errorFile:
+				errorFile.write(f"Validation errors:\n{'\n'.join(checksumErrors)}")
+		return
+	manifest = getAddonManifest(addonFilePath)
+	if manifest.errors:
+		if errorFilePath:
+			with open(errorFilePath, "a") as errorFile:
+				errorFile.write(f"Validation Errors:\n{manifest.errors}")
+		return
+	regeneratedData = createDataclassMatchingJsonSchema(
+		manifest,
+		addonSha,
+		addonData["channel"],
+		addonData["publisher"],
+		addonData["sourceURL"],
+		addonData["URL"],
+		addonData["license"],
+		addonData["licenseURL"],
+	)
+	submissionTime = addonData.get("submissionTime")
+	regeneratedAddonData = asdict(
+		regeneratedData,
+		# The JSON schema does not permit null values, but does contain optional keys.
+		# We have already ensured that all required keys are present in the metadata,
+		# So we can safely delete all keys whose value is None as optional.
+		dict_factory=lambda args: dict(filter(lambda item: item[1] is not None, args)),
+	)
+	if submissionTime:
+		regeneratedAddonData["submissionTime"] = submissionTime
+	with open(filePath, "wt", encoding="utf-8") as f:
+		json.dump(regeneratedAddonData, f, indent="\t", ensure_ascii=False)
+	print(f"Wrote json file: {filePath}")
+
+
+def main():
+	parser = argparse.ArgumentParser()
+	parser.add_argument(
+		"--dir",
+		dest="parentDir",
+		help="Parent directory to regenerate the JSON files inside.",
+		required=True,
+	)
+	parser.add_argument(
+		"--output",
+		dest="errorOutputFile",
+		help="The text file to output errors from the validation, if any.",
+		default=None,
+	)
+	args = parser.parse_args()
+	errorFilePath: str | None = args.errorOutputFile
+	for addonJsonFile in glob.glob(f"{args.parentDir}/**/*.json"):
+		regenerateJsonFile(addonJsonFile, errorFilePath)
+
+
+if __name__ == "__main__":
+	main()
diff --git a/_validate/regenerateTranslations.py b/_validate/regenerateTranslations.py
deleted file mode 100644
index 0998672..0000000
--- a/_validate/regenerateTranslations.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# Copyright (C) 2023-2025 NV Access Limited
-# This file may be used under the terms of the GNU General Public License, version 2 or later.
-# For more details see: https://www.gnu.org/licenses/gpl-2.0.html
-
-import argparse
-import glob
-import json
-from urllib.request import urlretrieve
-from typing import cast
-
-from .manifestLoader import getAddonManifest, getAddonManifestLocalizations
-from .validate import parseConfigValue
-
-
-def regenerateJsonFile(filePath: str, errorFilePath: str | None) -> None:
-	with open(filePath, encoding="utf-8") as f:
-		addonData = json.load(f)
-	if addonData.get("legacy"):
-		return
-	addonData["translations"] = []
-	addonFilePath, _ = urlretrieve(addonData["URL"])
-	manifest = getAddonManifest(addonFilePath)
-	if manifest.errors:
-		if errorFilePath:
-			with open(errorFilePath, "w") as errorFile:
-				errorFile.write(f"Validation Errors:\n{manifest.errors}")
-		return
-	for langCode, manifest in getAddonManifestLocalizations(manifest):
-		translatedChangelog: str | None = parseConfigValue(manifest, "changelog")
-		translation: dict[str, str] = {
-			"language": langCode,
-			"displayName": cast(str, manifest["summary"]),
-			"description": cast(str, manifest["description"]),
-		}
-		if translatedChangelog is not None:
-			translation["changelog"] = translatedChangelog
-		addonData["translations"].append(translation)
-
-	with open(filePath, "wt", encoding="utf-8") as f:
-		json.dump(addonData, f, indent="\t", ensure_ascii=False)
-	print(f"Wrote json file: {filePath}")
-
-
-def main():
-	parser = argparse.ArgumentParser()
-	parser.add_argument(
-		"--dir",
-		dest="parentDir",
-		help="Parent directory to regenerate the JSON files inside.",
-		required=True,
-	)
-	parser.add_argument(
-		"--output",
-		dest="errorOutputFile",
-		help="The text file to output errors from the validation, if any.",
-		default=None,
-	)
-	args = parser.parse_args()
-	errorFilePath: str | None = args.errorOutputFile
-	for addonJsonFile in glob.glob(f"{args.parentDir}/**/*.json"):
-		regenerateJsonFile(addonJsonFile, errorFilePath)
-
-
-if __name__ == "__main__":
-	main()
diff --git a/regenerateTranslations.bat b/regenerateJson.bat
similarity index 74%
rename from regenerateTranslations.bat
rename to regenerateJson.bat
index eefd38b..e4804b8 100644
--- a/regenerateTranslations.bat
+++ b/regenerateJson.bat
@@ -7,4 +7,4 @@ set unitTestsPath=%here%\tests
 set testOutput=%here%\testOutput
 md %testOutput%
 
-call uv run --directory "%here%" python -m _validate.regenerateTranslations %*
+call uv run --directory "%here%" python -m _validate.regenerateJson %*