diff --git a/apps/frontend/package.json b/apps/frontend/package.json
index 8852cd5123..fc536765e9 100644
--- a/apps/frontend/package.json
+++ b/apps/frontend/package.json
@@ -53,6 +53,7 @@
 		"@vue-email/components": "^0.0.21",
 		"@vue-email/render": "^0.0.9",
 		"@vueuse/core": "^11.1.0",
+		"@zip.js/zip.js": "^2.8.34",
 		"ace-builds": "^1.36.2",
 		"ansi-to-html": "^0.7.2",
 		"chart.js": "^4.5.1",
diff --git a/apps/frontend/src/helpers/infer/infer.ts b/apps/frontend/src/helpers/infer/infer.ts
index 9bda8a8049..de5956abf1 100644
--- a/apps/frontend/src/helpers/infer/infer.ts
+++ b/apps/frontend/src/helpers/infer/infer.ts
@@ -19,6 +19,26 @@ export interface InferredVersionInfo {
 	game_versions?: string[]
 }
 
+async function readMrpackManifest(rawFile: RawFile): Promise<string> {
+	const { BlobReader, TextWriter, ZipReader } = await import('@zip.js/zip.js')
+	const reader = new ZipReader(new BlobReader(rawFile))
+
+	try {
+		const entries = await reader.getEntries()
+		const manifest = entries.find(
+			(entry) => !entry.directory && entry.filename === 'modrinth.index.json',
+		)
+
+		if (!manifest || manifest.directory) {
+			throw new Error('Missing modrinth.index.json')
+		}
+
+		return await manifest.getData(new TextWriter())
+	} finally {
+		await reader.close()
+	}
+}
+
 /**
  * Fills in missing version information from the filename if not already present.
  */
@@ -56,11 +76,18 @@ export const inferVersionInfo = async function (
 	const simplifiedGameVersions = gameVersions
 		.filter((it) => it.version_type === 'release')
 		.map((it) => it.version)
+	const loaderParsers = createLoaderParsers(project, gameVersions, simplifiedGameVersions)
+	const fileName = rawFile.name.toLowerCase()
+
+	if (fileName.endsWith('.mrpack') || fileName.endsWith('.mrpack-primary')) {
+		const manifest = await readMrpackManifest(rawFile)
+		const result = loaderParsers['modrinth.index.json'](manifest)
+		return fillMissingFromFilename(result, rawFile.name, project.title)
+	}
 
 	const zipReader = new JSZip()
 	const zip = await zipReader.loadAsync(rawFile)
 
-	const loaderParsers = createLoaderParsers(project, gameVersions, simplifiedGameVersions)
 	const packParser = createPackParser(project, gameVersions, rawFile)
 	const multiFileDetectors = createMultiFileDetectors(project, gameVersions, rawFile)
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 614d6852ae..e0dcfd0625 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -308,6 +308,9 @@ importers:
       '@vueuse/core':
         specifier: ^11.1.0
         version: 11.3.0(vue@3.5.27(typescript@5.9.3))
+      '@zip.js/zip.js':
+        specifier: ^2.8.34
+        version: 2.8.34
       ace-builds:
         specifier: ^1.36.2
         version: 1.43.6
@@ -5228,6 +5231,10 @@ packages:
   '@yr/monotone-cubic-spline@1.0.3':
     resolution: {integrity: sha512-FQXkOta0XBSUPHndIKON2Y9JeQz5ZeMqLYZVVK93FliNBFm7LNMIZmY6FrMEB9XPcDbE2bekMbZD6kzDkxwYjA==}
 
+  '@zip.js/zip.js@2.8.34':
+    resolution: {integrity: sha512-+6a3lyqq69rpseLbvDPiVIWsZ/HdTGAAD6afFtug6ECPDGttb2dHnPC6cJgdPofYkzL9OvXizegq+DQVfL2rnA==}
+    engines: {bun: '>=0.7.0', deno: '>=1.0.0', node: '>=18.0.0'}
+
   abbrev@2.0.0:
     resolution: {integrity: sha512-6/mh1E2u2YgEsCHdY0Yx5oW+61gZU+1vXaoiHHrpKeuRNNgFvS+/jrwHiQhB5apAf5oB7UB7E19ol2R2LKH8hQ==}
     engines: {node: ^14.17.0 || ^16.13.0 || >=18.0.0}
@@ -14910,6 +14917,8 @@ snapshots:
 
   '@yr/monotone-cubic-spline@1.0.3': {}
 
+  '@zip.js/zip.js@2.8.34': {}
+
   abbrev@2.0.0: {}
 
   abbrev@3.0.1: {}