diff --git a/library.ts b/library.ts
index 8e3df62..d58f16e 100644
--- a/library.ts
+++ b/library.ts
@@ -1,3 +1,7 @@
+import fs from "node:fs/promises";
+import { createWriteStream } from "node:fs";
+import stream from "node:stream/promises";
+import { Zip, ZipPassThrough } from "fflate";
 import { Database } from "./database";
 
 export type Book = {
@@ -35,5 +39,40 @@ export function createLibrary(db: Database) {
 
       return books;
     },
+    async archive(dir: string) {
+      const bookDirs = await fs.readdir(dir, { withFileTypes: true });
+
+      for (const bookDir of bookDirs) {
+        if (!bookDir.isDirectory()) {
+          continue;
+        }
+
+        const path = `${bookDir.path}/${bookDir.name}`;
+        const out = createWriteStream(`${path}.cbz`);
+        const zip = new Zip(function cb(err, data, final) {
+          if (err) {
+            out.destroy(err);
+            return;
+          }
+
+          out[final ? "end" : "write"](data);
+        });
+
+        const files = await fs.readdir(path);
+
+        for (const file of files) {
+          const data = new ZipPassThrough(file);
+          zip.add(data);
+
+          const buffer = await fs.readFile(`${path}/${file}`);
+          data.push(buffer, true);
+        }
+
+        zip.end();
+
+        await stream.finished(out);
+        await fs.rm(path, { recursive: true });
+      }
+    },
   };
 }
diff --git a/main.ts b/main.ts
index 8e0b699..090bac4 100644
--- a/main.ts
+++ b/main.ts
@@ -93,6 +93,15 @@ const options = {
       const platform = createPlatform({ db, browser });
       const dir = `${args.values["out-dir"]!}/${book.id}`;
       await platform.download(dir, book);
+      await library.archive(args.values["out-dir"]!);
+    },
+  },
+  archive: {
+    type: "boolean",
+    async run() {
+      const db = await createDatabase(args.values.db!);
+      const library = createLibrary(db);
+      await library.archive(args.values["out-dir"]!);
     },
   },
   help: {
diff --git a/package-lock.json b/package-lock.json
index ef81fa2..18bb480 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "0.0.0",
       "license": "AGPL-3.0",
       "dependencies": {
+        "fflate": "^0.8.1",
         "playwright": "^1.39.0",
         "sqlite": "^5.1.1",
         "sqlite3": "^5.1.6",
@@ -661,6 +662,11 @@
         "@esbuild/win32-x64": "0.18.20"
       }
     },
+    "node_modules/fflate": {
+      "version": "0.8.1",
+      "resolved": "https://registry.npmjs.org/fflate/-/fflate-0.8.1.tgz",
+      "integrity": "sha512-/exOvEuc+/iaUm105QIiOt4LpBdMTWsXxqR0HDF35vx3fmaKzw7354gTilCh5rkzEt8WYyG//ku3h3nRmd7CHQ=="
+    },
     "node_modules/fs-minipass": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz",
diff --git a/package.json b/package.json
index 4f236c2..4fd0b63 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "type": "module",
   "bin": "bin/run.js",
   "dependencies": {
+    "fflate": "^0.8.1",
     "playwright": "^1.39.0",
     "sqlite": "^5.1.1",
     "sqlite3": "^5.1.6",