diff --git a/core/Controller/ConversionApiController.php b/core/Controller/ConversionApiController.php
new file mode 100644
index 0000000000000..66900ef0b4840
--- /dev/null
+++ b/core/Controller/ConversionApiController.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+
+namespace OC\Core\Controller;
+
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\Attribute\ApiRoute;
+use OCP\AppFramework\Http\Attribute\UserRateLimit;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\OCSController;
+use OCP\Conversion\IConversionManager;
+use OCP\Files\File;
+use OCP\Files\IRootFolder;
+use OCP\IL10N;
+use OCP\IRequest;
+
+class ConversionApiController extends OCSController {
+	public function __construct(
+		string $appName,
+		IRequest $request,
+		private IConversionManager $conversionManager,
+		private IRootFolder $rootFolder,
+		private IL10N $l10n,
+		private ?string $userId,
+	) {
+		parent::__construct($appName, $request);
+	}
+
+	#[UserRateLimit(limit: 25, period: 120)]
+	#[ApiRoute(verb: 'POST', url: '/convert', root: '/conversion')]
+	public function convert(int $fileId, string $targetMimeType): DataResponse {
+		$userFolder = $this->rootFolder->getUserFolder($this->userId);
+		$file = $userFolder->getFirstNodeById($fileId);
+
+		if (!$file || !($file instanceof File)) {
+			return new DataResponse([
+				'message' => $this->l10n->t('File not found'),
+			], Http::STATUS_NOT_FOUND);
+		}
+
+		try {
+			// TODO: Need more discussion around how to proceed
+			$conversion = $this->conversionManager->convert($file, $targetMimeType);
+		} catch (\Exception $e) {
+			return new DataResponse([
+				'message' => $e->getMessage(),
+			], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+
+		return new DataResponse([], Http::STATUS_OK);
+	}
+}
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 7064b97f430d4..bc5dea9883a5b 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -264,6 +264,9 @@
     'OCP\\Contacts\\ContactsMenu\\IProvider' => $baseDir . '/lib/public/Contacts/ContactsMenu/IProvider.php',
     'OCP\\Contacts\\Events\\ContactInteractedWithEvent' => $baseDir . '/lib/public/Contacts/Events/ContactInteractedWithEvent.php',
     'OCP\\Contacts\\IManager' => $baseDir . '/lib/public/Contacts/IManager.php',
+    'OCP\\Conversion\\ConversionMimeTuple' => $baseDir . '/lib/public/Conversion/ConversionMimeTuple.php',
+    'OCP\\Conversion\\IConversionManager' => $baseDir . '/lib/public/Conversion/IConversionManager.php',
+    'OCP\\Conversion\\IConversionProvider' => $baseDir . '/lib/public/Conversion/IConversionProvider.php',
     'OCP\\DB\\Events\\AddMissingColumnsEvent' => $baseDir . '/lib/public/DB/Events/AddMissingColumnsEvent.php',
     'OCP\\DB\\Events\\AddMissingIndicesEvent' => $baseDir . '/lib/public/DB/Events/AddMissingIndicesEvent.php',
     'OCP\\DB\\Events\\AddMissingPrimaryKeyEvent' => $baseDir . '/lib/public/DB/Events/AddMissingPrimaryKeyEvent.php',
@@ -1165,6 +1168,7 @@
     'OC\\Contacts\\ContactsMenu\\Providers\\EMailProvider' => $baseDir . '/lib/private/Contacts/ContactsMenu/Providers/EMailProvider.php',
     'OC\\Contacts\\ContactsMenu\\Providers\\LocalTimeProvider' => $baseDir . '/lib/private/Contacts/ContactsMenu/Providers/LocalTimeProvider.php',
     'OC\\Contacts\\ContactsMenu\\Providers\\ProfileProvider' => $baseDir . '/lib/private/Contacts/ContactsMenu/Providers/ProfileProvider.php',
+    'OC\\Conversion\\ConversionManager' => $baseDir . '/lib/private/Conversion/ConversionManager.php',
     'OC\\Core\\Application' => $baseDir . '/core/Application.php',
     'OC\\Core\\BackgroundJobs\\BackgroundCleanupUpdaterBackupsJob' => $baseDir . '/core/BackgroundJobs/BackgroundCleanupUpdaterBackupsJob.php',
     'OC\\Core\\BackgroundJobs\\CheckForUserCertificates' => $baseDir . '/core/BackgroundJobs/CheckForUserCertificates.php',
@@ -1303,6 +1307,7 @@
     'OC\\Core\\Controller\\ClientFlowLoginV2Controller' => $baseDir . '/core/Controller/ClientFlowLoginV2Controller.php',
     'OC\\Core\\Controller\\CollaborationResourcesController' => $baseDir . '/core/Controller/CollaborationResourcesController.php',
     'OC\\Core\\Controller\\ContactsMenuController' => $baseDir . '/core/Controller/ContactsMenuController.php',
+    'OC\\Core\\Controller\\ConversionApiController' => $baseDir . '/core/Controller/ConversionApiController.php',
     'OC\\Core\\Controller\\CssController' => $baseDir . '/core/Controller/CssController.php',
     'OC\\Core\\Controller\\ErrorController' => $baseDir . '/core/Controller/ErrorController.php',
     'OC\\Core\\Controller\\GuestAvatarController' => $baseDir . '/core/Controller/GuestAvatarController.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index adb0bf6899b4e..05636e18046ea 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -313,6 +313,9 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Contacts\\ContactsMenu\\IProvider' => __DIR__ . '/../../..' . '/lib/public/Contacts/ContactsMenu/IProvider.php',
         'OCP\\Contacts\\Events\\ContactInteractedWithEvent' => __DIR__ . '/../../..' . '/lib/public/Contacts/Events/ContactInteractedWithEvent.php',
         'OCP\\Contacts\\IManager' => __DIR__ . '/../../..' . '/lib/public/Contacts/IManager.php',
+        'OCP\\Conversion\\ConversionMimeTuple' => __DIR__ . '/../../..' . '/lib/public/Conversion/ConversionMimeTuple.php',
+        'OCP\\Conversion\\IConversionManager' => __DIR__ . '/../../..' . '/lib/public/Conversion/IConversionManager.php',
+        'OCP\\Conversion\\IConversionProvider' => __DIR__ . '/../../..' . '/lib/public/Conversion/IConversionProvider.php',
         'OCP\\DB\\Events\\AddMissingColumnsEvent' => __DIR__ . '/../../..' . '/lib/public/DB/Events/AddMissingColumnsEvent.php',
         'OCP\\DB\\Events\\AddMissingIndicesEvent' => __DIR__ . '/../../..' . '/lib/public/DB/Events/AddMissingIndicesEvent.php',
         'OCP\\DB\\Events\\AddMissingPrimaryKeyEvent' => __DIR__ . '/../../..' . '/lib/public/DB/Events/AddMissingPrimaryKeyEvent.php',
@@ -1214,6 +1217,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Contacts\\ContactsMenu\\Providers\\EMailProvider' => __DIR__ . '/../../..' . '/lib/private/Contacts/ContactsMenu/Providers/EMailProvider.php',
         'OC\\Contacts\\ContactsMenu\\Providers\\LocalTimeProvider' => __DIR__ . '/../../..' . '/lib/private/Contacts/ContactsMenu/Providers/LocalTimeProvider.php',
         'OC\\Contacts\\ContactsMenu\\Providers\\ProfileProvider' => __DIR__ . '/../../..' . '/lib/private/Contacts/ContactsMenu/Providers/ProfileProvider.php',
+        'OC\\Conversion\\ConversionManager' => __DIR__ . '/../../..' . '/lib/private/Conversion/ConversionManager.php',
         'OC\\Core\\Application' => __DIR__ . '/../../..' . '/core/Application.php',
         'OC\\Core\\BackgroundJobs\\BackgroundCleanupUpdaterBackupsJob' => __DIR__ . '/../../..' . '/core/BackgroundJobs/BackgroundCleanupUpdaterBackupsJob.php',
         'OC\\Core\\BackgroundJobs\\CheckForUserCertificates' => __DIR__ . '/../../..' . '/core/BackgroundJobs/CheckForUserCertificates.php',
@@ -1352,6 +1356,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Core\\Controller\\ClientFlowLoginV2Controller' => __DIR__ . '/../../..' . '/core/Controller/ClientFlowLoginV2Controller.php',
         'OC\\Core\\Controller\\CollaborationResourcesController' => __DIR__ . '/../../..' . '/core/Controller/CollaborationResourcesController.php',
         'OC\\Core\\Controller\\ContactsMenuController' => __DIR__ . '/../../..' . '/core/Controller/ContactsMenuController.php',
+        'OC\\Core\\Controller\\ConversionApiController' => __DIR__ . '/../../..' . '/core/Controller/ConversionApiController.php',
         'OC\\Core\\Controller\\CssController' => __DIR__ . '/../../..' . '/core/Controller/CssController.php',
         'OC\\Core\\Controller\\ErrorController' => __DIR__ . '/../../..' . '/core/Controller/ErrorController.php',
         'OC\\Core\\Controller\\GuestAvatarController' => __DIR__ . '/../../..' . '/core/Controller/GuestAvatarController.php',
diff --git a/lib/private/AppFramework/Bootstrap/RegistrationContext.php b/lib/private/AppFramework/Bootstrap/RegistrationContext.php
index f3b612edc38bb..8790caf253626 100644
--- a/lib/private/AppFramework/Bootstrap/RegistrationContext.php
+++ b/lib/private/AppFramework/Bootstrap/RegistrationContext.php
@@ -153,6 +153,9 @@ class RegistrationContext {
 
 	/** @var ServiceRegistration<\OCP\TaskProcessing\ITaskType>[] */
 	private array $taskProcessingTaskTypes = [];
+
+	/** @var ServiceRegistration<\OCP\Conversion\IConversionProvider>[] */
+	private array $conversionProviders = [];
 	
 	/** @var ServiceRegistration<IMailProvider>[] */
 	private $mailProviders = [];
@@ -420,6 +423,13 @@ public function registerTaskProcessingTaskType(string $taskProcessingTaskTypeCla
 				);
 			}
 
+			public function registerConversionProvider(string $conversionProviderClass): void {
+				$this->context->registerConversionProvider(
+					$this->appId,
+					$conversionProviderClass
+				);
+			}
+
 			public function registerMailProvider(string $class): void {
 				$this->context->registerMailProvider(
 					$this->appId,
@@ -625,6 +635,14 @@ public function registerTaskProcessingProvider(string $appId, string $taskProces
 	public function registerTaskProcessingTaskType(string $appId, string $taskProcessingTaskTypeClass) {
 		$this->taskProcessingTaskTypes[] = new ServiceRegistration($appId, $taskProcessingTaskTypeClass);
 	}
+
+	/**
+	 * @psalm-param class-string<\OCP\Conversion\IConversionProvider> $conversionProviderClass
+	 */
+	public function registerConversionProvider(string $appId, string $conversionProviderClass): void {
+		$this->conversionProviders[] = new ServiceRegistration($appId, $conversionProviderClass);
+	}
+
 	/**
 	 * @psalm-param class-string<IMailProvider> $migratorClass
 	 */
@@ -984,6 +1002,13 @@ public function getTaskProcessingTaskTypes(): array {
 		return $this->taskProcessingTaskTypes;
 	}
 
+	/**
+	 * @return ServiceRegistration<\OCP\Conversion\IConversionProvider>[]
+	 */
+	public function getConversionProviders(): array {
+		return $this->conversionProviders;
+	}
+
 	/**
 	 * @return ServiceRegistration<IMailProvider>[]
 	 */
diff --git a/lib/private/Conversion/ConversionManager.php b/lib/private/Conversion/ConversionManager.php
new file mode 100644
index 0000000000000..16f67583f38d9
--- /dev/null
+++ b/lib/private/Conversion/ConversionManager.php
@@ -0,0 +1,97 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\Conversion;
+
+use OC\AppFramework\Bootstrap\Coordinator;
+use OCP\Conversion\ConversionMimeTuple;
+use OCP\Conversion\IConversionManager;
+use OCP\Conversion\IConversionProvider;
+use OCP\Files\File;
+use OCP\PreConditionNotMetException;
+use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\ContainerInterface;
+use Psr\Container\NotFoundExceptionInterface;
+use Psr\Log\LoggerInterface;
+use RuntimeException;
+use Throwable;
+
+class ConversionManager implements IConversionManager {
+	/** @var ?IConversionProvider[] */
+	private ?array $providers = null;
+
+	public function __construct(
+		private Coordinator $coordinator,
+		private ContainerInterface $serverContainer,
+		private LoggerInterface $logger,
+	) {
+	}
+
+	public function hasProviders(): bool {
+		$context = $this->coordinator->getRegistrationContext();
+		return !empty($context->getConversionProviders());
+	}
+
+	public function getMimeTypes(): array {
+		$mimeTypes = [];
+
+		foreach ($this->getProviders() as $provider) {
+			$mimeTypes[] = $provider->getSupportedMimeTypes();
+		}
+
+		return $mimeTypes;
+	}
+
+	public function convert(File $file, string $targetMimeType): File {
+		if (!$this->hasProviders()) {
+			throw new PreConditionNotMetException('No conversion providers available');
+		}
+
+		$fileMimeType = $file->getMimetype();
+		foreach ($this->getProviders() as $provider) {
+			$availableProviderConversions = array_filter(
+				$provider->getSupportedMimeTypes(),
+				function (ConversionMimeTuple $mimeTuple) use ($fileMimeType, $targetMimeType) {
+					['from' => $from, 'to' => $to] = $mimeTuple->jsonSerialize();
+
+					return $from === $fileMimeType && $to === $targetMimeType;
+				}
+			);
+
+			if (!empty($availableProviderConversions)) {
+				return $provider->convertFile($file, $targetMimeType);
+			}
+		}
+
+		throw new RuntimeException('Could not convert file');
+	}
+
+	public function getProviders(): array {
+		if ($this->providers !== null) {
+			return $this->providers;
+		}
+
+		$context = $this->coordinator->getRegistrationContext();
+		$this->providers = [];
+
+		foreach ($context->getConversionProviders() as $providerRegistration) {
+			$class = $providerRegistration->getService();
+
+			try {
+				$this->providers[$class] = $this->serverContainer->get($class);
+			} catch (NotFoundExceptionInterface|ContainerExceptionInterface|Throwable $e) {
+				$this->logger->error('Failed to load conversion provider ' . $class, [
+					'exception' => $e,
+				]);
+			}
+		}
+
+		return $this->providers;
+	}
+}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index a20c37732a76e..9f38477be0cb3 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -34,6 +34,7 @@
 use OC\Comments\ManagerFactory as CommentsManagerFactory;
 use OC\Contacts\ContactsMenu\ActionFactory;
 use OC\Contacts\ContactsMenu\ContactsStore;
+use OC\Conversion\ConversionManager;
 use OC\DB\Connection;
 use OC\DB\ConnectionAdapter;
 use OC\Diagnostics\EventLogger;
@@ -143,6 +144,7 @@
 use OCP\Comments\ICommentsManager;
 use OCP\Contacts\ContactsMenu\IActionFactory;
 use OCP\Contacts\ContactsMenu\IContactsStore;
+use OCP\Conversion\IConversionManager;
 use OCP\Defaults;
 use OCP\Diagnostics\IEventLogger;
 use OCP\Diagnostics\IQueryLogger;
@@ -1258,6 +1260,8 @@ public function __construct($webRoot, \OC\Config $config) {
 
 		$this->registerAlias(ITranslationManager::class, TranslationManager::class);
 
+		$this->registerAlias(IConversionManager::class, ConversionManager::class);
+
 		$this->registerAlias(ISpeechToTextManager::class, SpeechToTextManager::class);
 
 		$this->registerAlias(IEventSourceFactory::class, EventSourceFactory::class);
diff --git a/lib/public/AppFramework/Bootstrap/IRegistrationContext.php b/lib/public/AppFramework/Bootstrap/IRegistrationContext.php
index 8a18ec8ae9da0..6a3ed93f12a83 100644
--- a/lib/public/AppFramework/Bootstrap/IRegistrationContext.php
+++ b/lib/public/AppFramework/Bootstrap/IRegistrationContext.php
@@ -414,6 +414,19 @@ public function registerTaskProcessingProvider(string $taskProcessingProviderCla
 	 */
 	public function registerTaskProcessingTaskType(string $taskProcessingTaskTypeClass): void;
 
+	/**
+	 * Register an implementation of \OCP\Conversion\IConversionProvider
+	 * that will handle the conversion of files from one MIME type to another
+	 *
+	 * @param string $conversionProviderClass
+	 * @psalm-param class-string<\OCP\Conversion\IConversionProvider> $conversionProviderClass
+	 *
+	 * @return void
+	 *
+	 * @since 31.0.0
+	 */
+	public function registerConversionProvider(string $conversionProviderClass): void;
+
 	/**
 	 * Register a mail provider
 	 *
diff --git a/lib/public/Conversion/ConversionMimeTuple.php b/lib/public/Conversion/ConversionMimeTuple.php
new file mode 100644
index 0000000000000..ef2deaa732b94
--- /dev/null
+++ b/lib/public/Conversion/ConversionMimeTuple.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\Conversion;
+
+use JsonSerializable;
+
+/**
+ * A tuple-like object representing both an original and target
+ * MIME type for a file conversion
+ *
+ * @since 31.0.0
+ */
+class ConversionMimeTuple implements JsonSerializable {
+	/**
+	 * @param string $from The original MIME type of a file
+	 * @param string $to The desired MIME type for the file
+	 *
+	 * @since 31.0.0
+	 */
+	public function __construct(
+		private string $from,
+		private string $to,
+	) {
+	}
+
+	public function jsonSerialize(): array {
+		return [
+			'from' => $this->from,
+			'to' => $this->to,
+		];
+	}
+}
diff --git a/lib/public/Conversion/IConversionManager.php b/lib/public/Conversion/IConversionManager.php
new file mode 100644
index 0000000000000..3b5a2fcf83656
--- /dev/null
+++ b/lib/public/Conversion/IConversionManager.php
@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\Conversion;
+
+use OCP\Files\File;
+
+/**
+ * @since 31.0.0
+ */
+interface IConversionManager {
+	/**
+	 * Determines whether or not conversion providers are available
+	 *
+	 * @return bool
+	 *
+	 * @since 31.0.0
+	 */
+	public function hasProviders(): bool;
+
+	/**
+	 * Gets all supported MIME type conversions
+	 *
+	 * @return array<ConversionMimeTuple>
+	 *
+	 * @since 31.0.0
+	 */
+	public function getMimeTypes(): array;
+
+	/**
+	 * Convert a file to a given MIME type
+	 *
+	 * @param File $file The file to be converted
+	 * @param string $targetMimeType The MIME type to convert the file to
+	 *
+	 * @return File
+	 *
+	 * @since 31.0.0
+	 */
+	public function convert(File $file, string $targetMimeType): File;
+}
diff --git a/lib/public/Conversion/IConversionProvider.php b/lib/public/Conversion/IConversionProvider.php
new file mode 100644
index 0000000000000..b534fdc560cdc
--- /dev/null
+++ b/lib/public/Conversion/IConversionProvider.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCP\Conversion;
+
+use OCP\Files\File;
+
+/**
+ * This interface is implemented by apps that provide
+ * a file conversion provider
+ *
+ * @since 31.0.0
+ */
+interface IConversionProvider {
+	/**
+	 * Get the name of the provider
+	 *
+	 * @return string
+	 *
+	 * @since 31.0.0
+	 */
+	public function getName(): string;
+
+	/**
+	 * Get an array of MIME types which are available for conversion
+	 *
+	 * @return array<ConversionMimeTuple>
+	 *
+	 * @since 31.0.0
+	 */
+	public function getSupportedMimeTypes(): array;
+
+	/**
+	 * Convert a file to a given MIME type
+	 *
+	 * @param File $file The file to be converted
+	 * @param string $targetMimeType The MIME type to convert the file to
+	 *
+	 * @return File
+	 *
+	 * @since 31.0.0
+	 */
+	public function convertFile(File $file, string $targetMimeType): File;
+}