diff --git a/config.ts b/config.ts
index f04e872..743e5b8 100644
--- a/config.ts
+++ b/config.ts
@@ -15,6 +15,8 @@ export type ConfigType = {
     port: number;
     export_zip_jpn_title: boolean;
     hostname: string;
+    meili_host?: string;
+    meili_update_api_key?: string;
 };
 
 export class Config {
@@ -97,6 +99,12 @@ export class Config {
     get hostname() {
         return this._return_string("hostname") || "localhost";
     }
+    get meili_host() {
+        return this._return_string("meili_host");
+    }
+    get meili_update_api_key() {
+        return this._return_string("meili_update_api_key");
+    }
     to_json(): ConfigType {
         return {
             cookies: typeof this.cookies === "string",
@@ -112,6 +120,8 @@ export class Config {
             port: this.port,
             export_zip_jpn_title: this.export_zip_jpn_title,
             hostname: this.hostname,
+            meili_host: this.meili_host,
+            meili_update_api_key: this.meili_update_api_key,
         };
     }
 }
diff --git a/db.ts b/db.ts
index 2631ecb..279cc7a 100644
--- a/db.ts
+++ b/db.ts
@@ -1,5 +1,6 @@
 import { DB } from "sqlite/mod.ts";
 import { SemVer } from "std/semver/mod.ts";
+import { unescape } from "std/html/mod.ts";
 import { join, resolve } from "std/path/mod.ts";
 import { SqliteError } from "sqlite/mod.ts";
 import { Status } from "sqlite/src/constants.ts";
@@ -155,7 +156,7 @@ export class EhDb {
     #lock_file: string | undefined;
     #dblock_file: string | undefined;
     #_tags: Map<string, number> | undefined;
-    readonly version = new SemVer("1.0.0-5");
+    readonly version = new SemVer("1.0.0-6");
     constructor(base_path: string) {
         const db_path = join(base_path, "data.db");
         sure_dir_sync(base_path);
@@ -225,6 +226,29 @@ export class EhDb {
             if (v.compare("1.0.0-5") === -1) {
                 this.db.execute("ALTER TABLE task DROP pn;");
             }
+            if (v.compare("1.0.0-6") === -1) {
+                let offset = 0;
+                let tasks = this.convert_gmeta(
+                    this.db.queryEntries<GMetaRaw>(
+                        "SELECT * FROM gmeta LIMIT 20 OFFSET 0;",
+                    ),
+                );
+                while (tasks.length) {
+                    tasks.forEach((t) => {
+                        t.title = unescape(t.title);
+                        t.title_jpn = unescape(t.title_jpn);
+                        t.uploader = unescape(t.uploader);
+                        this.add_gmeta(t);
+                    });
+                    offset += tasks.length;
+                    tasks = this.convert_gmeta(
+                        this.db.queryEntries<GMetaRaw>(
+                            "SELECT * FROM gmeta LIMIT 20 OFFSET ?;",
+                            [offset],
+                        ),
+                    );
+                }
+            }
             this.#write_version();
             if (need_optimize) this.optimize();
         }
@@ -487,6 +511,12 @@ export class EhDb {
             [gid, token],
         ));
     }
+    get_gids(offset = 0, limit = 20) {
+        return this.db.query<[number]>(
+            "SELECT gid FROM gmeta LIMIT ? OFFSET ?;",
+            [limit, offset],
+        ).map((n) => n[0]);
+    }
     get_gmeta_by_gid(gid: number) {
         const s = this.convert_gmeta(
             this.db.queryEntries<GMetaRaw>(
diff --git a/deno.json b/deno.json
index 1268509..db3a9ba 100644
--- a/deno.json
+++ b/deno.json
@@ -8,7 +8,8 @@
         "run": "deno run --allow-read=./ --allow-write=./ --allow-run=tasklist.exe --allow-env=DENO_DEPLOYMENT_ID --allow-net --unstable",
         "compile": "deno compile --allow-read=./ --allow-write=./ --allow-run=tasklist.exe --allow-env=DENO_DEPLOYMENT_ID --allow-net --unstable",
         "compile_full": "deno compile --allow-read --allow-write --allow-run=tasklist.exe --allow-env=DENO_DEPLOYMENT_ID --allow-net --unstable",
-        "fetch": "deno run --allow-read=./ --allow-write=./ --allow-net fetch_static_files.ts"
+        "fetch": "deno run --allow-read=./ --allow-write=./ --allow-net fetch_static_files.ts",
+        "gen_meili_server_key": "deno run --allow-net scripts/gen_meili_server_key.ts"
     },
     "fmt": {
         "indentWidth": 4,
diff --git a/deno.lock b/deno.lock
index 57c15c5..01d72a1 100644
--- a/deno.lock
+++ b/deno.lock
@@ -16,6 +16,9 @@
     "https://deno.land/std@0.140.0/path/posix.ts": "293cdaec3ecccec0a9cc2b534302dfe308adb6f10861fa183275d6695faace44",
     "https://deno.land/std@0.140.0/path/separator.ts": "fe1816cb765a8068afb3e8f13ad272351c85cbc739af56dacfc7d93d710fe0f9",
     "https://deno.land/std@0.140.0/path/win32.ts": "31811536855e19ba37a999cd8d1b62078235548d67902ece4aa6b814596dd757",
+    "https://deno.land/std@0.150.0/media_types/_util.ts": "ce9b4fc4ba1c447dafab619055e20fd88236ca6bdd7834a21f98bd193c3fbfa1",
+    "https://deno.land/std@0.150.0/media_types/mod.ts": "2d4b6f32a087029272dc59e0a55ae3cc4d1b27b794ccf528e94b1925795b3118",
+    "https://deno.land/std@0.150.0/media_types/vendor/mime-db.v1.52.0.ts": "724cee25fa40f1a52d3937d6b4fbbfdd7791ff55e1b7ac08d9319d5632c7f5af",
     "https://deno.land/std@0.173.0/_util/asserts.ts": "178dfc49a464aee693a7e285567b3d0b555dc805ff490505a8aae34f9cfb1462",
     "https://deno.land/std@0.173.0/_util/os.ts": "d932f56d41e4f6a6093d56044e29ce637f8dcc43c5a90af43504a889cf1775e3",
     "https://deno.land/std@0.173.0/path/_constants.ts": "e49961f6f4f48039c0dfed3c3f93e963ca3d92791c9d478ac5b43183413136e0",
@@ -68,27 +71,28 @@
     "https://deno.land/std@0.178.0/path/separator.ts": "0fb679739d0d1d7bf45b68dacfb4ec7563597a902edbaf3c59b50d5bcadd93b1",
     "https://deno.land/std@0.178.0/path/win32.ts": "d186344e5583bcbf8b18af416d13d82b35a317116e6460a5a3953508c3de5bba",
     "https://deno.land/std@0.178.0/semver/mod.ts": "409a2691f5a411c34e917c1e6d445a6d1d53f3fadf660e44a99dd0bf9b2ef412",
-    "https://deno.land/std@0.190.0/_util/asserts.ts": "178dfc49a464aee693a7e285567b3d0b555dc805ff490505a8aae34f9cfb1462",
-    "https://deno.land/std@0.190.0/_util/os.ts": "d932f56d41e4f6a6093d56044e29ce637f8dcc43c5a90af43504a889cf1775e3",
-    "https://deno.land/std@0.190.0/flags/mod.ts": "17f444ddbee43c5487568de0c6a076c7729cfe90d96d2ffcd2b8f8adadafb6e8",
-    "https://deno.land/std@0.190.0/fmt/colors.ts": "d67e3cd9f472535241a8e410d33423980bec45047e343577554d3356e1f0ef4e",
-    "https://deno.land/std@0.190.0/fs/exists.ts": "29c26bca8584a22876be7cb8844f1b6c8fc35e9af514576b78f5c6884d7ed02d",
-    "https://deno.land/std@0.190.0/json/common.ts": "ecd5e87d45b5f0df33238ed8b1746e1444da7f5c86ae53d0f0b04280f41a25bb",
-    "https://deno.land/std@0.190.0/jsonc/mod.ts": "b88dce28eb3645667caa856538ae2fe87af51410822544a0b45a4177ef3bd7dd",
-    "https://deno.land/std@0.190.0/jsonc/parse.ts": "2910e33bc7c3b243e3b6f3a39ce4d6ca84337b277a8df6f2ad2d9e4adbcddc08",
-    "https://deno.land/std@0.190.0/path/_constants.ts": "e49961f6f4f48039c0dfed3c3f93e963ca3d92791c9d478ac5b43183413136e0",
-    "https://deno.land/std@0.190.0/path/_interface.ts": "6471159dfbbc357e03882c2266d21ef9afdb1e4aa771b0545e90db58a0ba314b",
-    "https://deno.land/std@0.190.0/path/_util.ts": "d7abb1e0dea065f427b89156e28cdeb32b045870acdf865833ba808a73b576d0",
-    "https://deno.land/std@0.190.0/path/common.ts": "ee7505ab01fd22de3963b64e46cff31f40de34f9f8de1fff6a1bd2fe79380000",
-    "https://deno.land/std@0.190.0/path/glob.ts": "d479e0a695621c94d3fd7fe7abd4f9499caf32a8de13f25073451c6ef420a4e1",
-    "https://deno.land/std@0.190.0/path/mod.ts": "ee161baec5ded6510ee1d1fb6a75a0f5e4b41f3f3301c92c716ecbdf7dae910d",
-    "https://deno.land/std@0.190.0/path/posix.ts": "8b7c67ac338714b30c816079303d0285dd24af6b284f7ad63da5b27372a2c94d",
-    "https://deno.land/std@0.190.0/path/separator.ts": "0fb679739d0d1d7bf45b68dacfb4ec7563597a902edbaf3c59b50d5bcadd93b1",
-    "https://deno.land/std@0.190.0/path/win32.ts": "d186344e5583bcbf8b18af416d13d82b35a317116e6460a5a3953508c3de5bba",
-    "https://deno.land/std@0.190.0/semver/mod.ts": "200f50cf6872212667df532fb09f0b1a33d3427a5201f75fad30a0d0c6dbcce3",
-    "https://deno.land/std@0.190.0/testing/_diff.ts": "1a3c044aedf77647d6cac86b798c6417603361b66b54c53331b312caeb447aea",
-    "https://deno.land/std@0.190.0/testing/_format.ts": "a69126e8a469009adf4cf2a50af889aca364c349797e63174884a52ff75cf4c7",
-    "https://deno.land/std@0.190.0/testing/asserts.ts": "e16d98b4d73ffc4ed498d717307a12500ae4f2cbe668f1a215632d19fcffc22f",
+    "https://deno.land/std@0.191.0/_util/asserts.ts": "178dfc49a464aee693a7e285567b3d0b555dc805ff490505a8aae34f9cfb1462",
+    "https://deno.land/std@0.191.0/_util/os.ts": "d932f56d41e4f6a6093d56044e29ce637f8dcc43c5a90af43504a889cf1775e3",
+    "https://deno.land/std@0.191.0/flags/mod.ts": "17f444ddbee43c5487568de0c6a076c7729cfe90d96d2ffcd2b8f8adadafb6e8",
+    "https://deno.land/std@0.191.0/fmt/colors.ts": "d67e3cd9f472535241a8e410d33423980bec45047e343577554d3356e1f0ef4e",
+    "https://deno.land/std@0.191.0/fs/exists.ts": "29c26bca8584a22876be7cb8844f1b6c8fc35e9af514576b78f5c6884d7ed02d",
+    "https://deno.land/std@0.191.0/html/entities.ts": "1c9fa4d76e36a9bdbe370a65f1612771f3cc2cf802d217b4e633850e2fa25c16",
+    "https://deno.land/std@0.191.0/html/mod.ts": "3f8c71781e32037ab63bd417759d15d31fb9606c6615c85dcabcc515986494ba",
+    "https://deno.land/std@0.191.0/jsonc/mod.ts": "b88dce28eb3645667caa856538ae2fe87af51410822544a0b45a4177ef3bd7dd",
+    "https://deno.land/std@0.191.0/jsonc/parse.ts": "2910e33bc7c3b243e3b6f3a39ce4d6ca84337b277a8df6f2ad2d9e4adbcddc08",
+    "https://deno.land/std@0.191.0/path/_constants.ts": "e49961f6f4f48039c0dfed3c3f93e963ca3d92791c9d478ac5b43183413136e0",
+    "https://deno.land/std@0.191.0/path/_interface.ts": "6471159dfbbc357e03882c2266d21ef9afdb1e4aa771b0545e90db58a0ba314b",
+    "https://deno.land/std@0.191.0/path/_util.ts": "d7abb1e0dea065f427b89156e28cdeb32b045870acdf865833ba808a73b576d0",
+    "https://deno.land/std@0.191.0/path/common.ts": "ee7505ab01fd22de3963b64e46cff31f40de34f9f8de1fff6a1bd2fe79380000",
+    "https://deno.land/std@0.191.0/path/glob.ts": "d479e0a695621c94d3fd7fe7abd4f9499caf32a8de13f25073451c6ef420a4e1",
+    "https://deno.land/std@0.191.0/path/mod.ts": "f065032a7189404fdac3ad1a1551a9ac84751d2f25c431e101787846c86c79ef",
+    "https://deno.land/std@0.191.0/path/posix.ts": "8b7c67ac338714b30c816079303d0285dd24af6b284f7ad63da5b27372a2c94d",
+    "https://deno.land/std@0.191.0/path/separator.ts": "0fb679739d0d1d7bf45b68dacfb4ec7563597a902edbaf3c59b50d5bcadd93b1",
+    "https://deno.land/std@0.191.0/path/win32.ts": "d186344e5583bcbf8b18af416d13d82b35a317116e6460a5a3953508c3de5bba",
+    "https://deno.land/std@0.191.0/semver/mod.ts": "200f50cf6872212667df532fb09f0b1a33d3427a5201f75fad30a0d0c6dbcce3",
+    "https://deno.land/std@0.191.0/testing/_diff.ts": "1a3c044aedf77647d6cac86b798c6417603361b66b54c53331b312caeb447aea",
+    "https://deno.land/std@0.191.0/testing/_format.ts": "a69126e8a469009adf4cf2a50af889aca364c349797e63174884a52ff75cf4c7",
+    "https://deno.land/std@0.191.0/testing/asserts.ts": "e16d98b4d73ffc4ed498d717307a12500ae4f2cbe668f1a215632d19fcffc22f",
     "https://deno.land/x/code_block_writer@11.0.3/mod.ts": "2c3448060e47c9d08604c8f40dee34343f553f33edcdfebbf648442be33205e5",
     "https://deno.land/x/code_block_writer@11.0.3/utils/string_utils.ts": "60cb4ec8bd335bf241ef785ccec51e809d576ff8e8d29da43d2273b69ce2a6ff",
     "https://deno.land/x/deno_dom@v0.1.38/build/deno-wasm/deno-wasm.js": "98b1ad24a1c13284557917659402202e5c5258ab1431b3f3a82434ad36ffa05a",
@@ -164,6 +168,7 @@
     "https://deno.land/x/ts_morph@17.0.1/mod.ts": "adba9b82f24865d15d2c78ef6074b9a7457011719056c9928c800f130a617c93",
     "https://deno.land/x/ts_morph@17.0.1/ts_morph.d.ts": "a54b0c51b06d84defedf5fdd59c773d803808ae7c9678f7165f7a1a6dfa7f6a3",
     "https://deno.land/x/ts_morph@17.0.1/ts_morph.js": "1bb80284b9e31a4c5c2078cd533fe9b12b4b2d710267055cb655225aa88fb2df",
+    "https://deno.land/x/xhr@0.3.0/mod.ts": "094aacd627fd9635cd942053bf8032b5223b909858fa9dc8ffa583752ff63b20",
     "https://deno.land/x/zipjs@v2.7.14/index.d.ts": "f1c412d1721597eafd2b665ec002ddfb982a8818e32fb6a4d3cab1a86134db40",
     "https://deno.land/x/zipjs@v2.7.14/index.js": "7c71926e0c9618e48a22d9dce701131704fd3148a1d2eefd5dba1d786c846a5f",
     "https://deno.land/x/zipjs@v2.7.14/lib/core/codec-pool.js": "e5ab8ee3ec800ed751ef1c63a1bd8e50f162aa256a5f625d173d7a32e76e828c",
@@ -200,6 +205,8 @@
     "https://esm.sh/accept-language-parser@1.5.0/": "16d82ee0a75451f75b42d9a20db4da0ccae7ccc8cc09a41c73b4488aba010b94",
     "https://esm.sh/gh/SortableJS/Sortable@1.15.0/Sortable.min.js": "0a3e3cf471bf4566d7a3f9823b1d0d3b2bd075404e93419cd4074bd23310a9b0",
     "https://esm.sh/lifegpc-md5@1.0.3": "07fb48e0e08189de5f370ab8a1fa9d4dfd1cdb31a1843fba7e6f30d1c28575cd",
+    "https://esm.sh/lodash@4.17.21/isEqual": "d94a1bba01b5a2061d42ee5c7d27cce9e4c42781b724c48fb9aeb58240272a1b",
+    "https://esm.sh/meilisearch@0.33.0": "f6a40767720d9f1a65e2b9731ec129296b2e974cb6bdb33f0776818dbf777ac1",
     "https://esm.sh/preact-material-components@1.6.1/Button": "bc60923d511c6e2e33a7064339b3e643a9c15e3ef232ab063ef570af2ef83dc8",
     "https://esm.sh/preact-material-components@1.6.1/Checkbox": "bf34f5cd8c6d015916d854d91aab2caf115463e97be9a461f8dd3370ea11a49c",
     "https://esm.sh/preact-material-components@1.6.1/Dialog": "b0ff8da9c770456748f7e065fecda2fc90f5364ea66cae75ff5f51d57f6a87eb",
@@ -330,9 +337,117 @@
     "https://esm.sh/v125/@stablelib/int@1.0.1/denonext/int.mjs": "179398595f1fcf9e85c3251583cf23031bf1b5b2040d7ad731de19cdb1e61adc",
     "https://esm.sh/v125/@stablelib/wipe@1.0.1/denonext/wipe.mjs": "116b9cbca9c97e0a997d7cc3ebd9e60883d99eaa2345d48cafeb783b44808123",
     "https://esm.sh/v125/array-buffer-to-hex@1.0.0/denonext/array-buffer-to-hex.mjs": "e9c4132a6dc310f33ffc362e0becd7ab12d209962f7028ad1b9b58439cd9b35e",
+    "https://esm.sh/v125/cross-fetch@3.1.6/denonext/polyfill.js": "f03a84d17c94b7a32e53810751dccb0b41385459bfab9da8efdcfa6b44a8dd96",
     "https://esm.sh/v125/gh/SortableJS/Sortable@1.15.0/denonext/Sortable.min.js": "aeba191bb6622c4ad41ae5d8f5d4dd6bf15074f264cb3640ed223fbaf052263b",
     "https://esm.sh/v125/lifegpc-md5@1.0.3/denonext/lifegpc-md5.mjs": "332f72d899b7fa2a74c4a1a4f00616fa5543bcfd9a182314b9408501c3b0bb10",
     "https://esm.sh/v125/lifegpc-md5@1.0.3/lib/md5.d.ts": "82fd2b0c148e013ade0b46149953270220d0fd61835f2d12a95832fa2e0dcfc0",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_DataView.js": "443fc3e0f255bd72f35d2576288a0bb2f73fca0c858e542d0a2770ecb0f6d7ff",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_Hash.js": "18837c9815896997e1799ff48ea0dcfe84eac217b9640fdd5200af33551fd837",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_ListCache.js": "c857858300e72860dd83fbcad4d738e3c0e6deb57a045f1c68bcee2e914b2fcc",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_Map.js": "d4f3dbf3a71e136c5dd1591fcb66c3a1e019cb99f6b7c604eb768cf125e3c45b",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_MapCache.js": "d761fabde9c2eeb98c6c8b1d18640651438fcb7a81cb08929280fd697bba7f8e",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_Promise.js": "625bac0d5286da49def7849e367f724e14a98f055142d5e95a9978f3b0b6b732",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_Set.js": "45dfac4f5109844477f96efd965b5dbbf461b8db22b13b369d5af4eb3ae27864",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_SetCache.js": "b5b0d49a0c5fd9ca4676e10e322be07fab36195c66dda8534a2c986d543e998d",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_Stack.js": "18b71d289acf042886917feb63def79bbb501ee35afcf644cdef721f6a2b33e0",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_Symbol.js": "498dabbb29c80aea7caf8520d61672b10268731d59ee769c1acecc4445c89b6e",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_Uint8Array.js": "546de7ce7b76125ad6b7dfa18c4769468358dcc744d4008de339557365d0ce9d",
+    "https://esm.sh/v125/lodash@4.17.21/denonext/_WeakMap.js": "d493e24471a46a357011c8c7e938229ed129d79cdaa49a90b02b1e175d12cdb7",
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     "https://raw.githubusercontent.com/lucacasonato/esbuild_deno_loader/8031f71afa1bbcd3237a94b11f53a2e5c5c0e7bf/deps.ts": "b7248e5b750be62613a9417f407e65ed43726d83b11f9631d6dbb58634bbd7d1",
     "https://raw.githubusercontent.com/lucacasonato/esbuild_deno_loader/8031f71afa1bbcd3237a94b11f53a2e5c5c0e7bf/mod.ts": "3e507379372361162f93325a216b86f6098defb5bb60144555b507bca26d061f",
     "https://raw.githubusercontent.com/lucacasonato/esbuild_deno_loader/8031f71afa1bbcd3237a94b11f53a2e5c5c0e7bf/src/deno.ts": "71bee6b14e72ca193c0686d8b4f1f47d639a64745b6f5c7576f7a3616f436f57",
diff --git a/import_map.json b/import_map.json
index ce01a13..9231ac1 100644
--- a/import_map.json
+++ b/import_map.json
@@ -1,6 +1,6 @@
 {
     "imports": {
-        "std/": "https://deno.land/std@0.190.0/",
+        "std/": "https://deno.land/std@0.191.0/",
         "deno_dom/": "https://deno.land/x/deno_dom@v0.1.38/",
         "sqlite/": "https://deno.land/x/sqlite@v3.7.2/",
         "zipjs/": "https://deno.land/x/zipjs@v2.7.14/",
@@ -17,6 +17,8 @@
         "accept-language-parser/": "https://esm.sh/accept-language-parser@1.5.0/",
         "sortable": "https://esm.sh/gh/SortableJS/Sortable@1.15.0/Sortable.min.js",
         "esbuild/": "https://deno.land/x/esbuild@v0.18.0/",
-        "lifegpc-md5": "https://esm.sh/lifegpc-md5@1.0.3"
+        "lifegpc-md5": "https://esm.sh/lifegpc-md5@1.0.3",
+        "meilisearch": "https://esm.sh/meilisearch@0.33.0",
+        "lodash/": "https://esm.sh/lodash@4.17.21/"
     }
 }
diff --git a/main.ts b/main.ts
index f456cc6..332e092 100644
--- a/main.ts
+++ b/main.ts
@@ -23,6 +23,7 @@ enum CMD {
     Optimize,
     UpdateTagTranslation,
     ExportZip,
+    UpdateMeiliSearchData,
 }
 
 const args = parse(Deno.args, {
@@ -46,6 +47,9 @@ if (rcmd == "utt" || rcmd == "update_tag_translation") {
     cmd = CMD.UpdateTagTranslation;
 }
 if (rcmd == "ez" || rcmd == "export_zip") cmd = CMD.ExportZip;
+if (rcmd == "umsd" || rcmd == "update_meili_search_data") {
+    cmd = CMD.UpdateMeiliSearchData;
+}
 if (cmd == CMD.Unknown) {
     throw Error(`Unknown command: ${rcmd}`);
 }
@@ -117,6 +121,15 @@ async function export_zip() {
         if (!manager.aborted) manager.close();
     }
 }
+async function update_meili_search_data() {
+    const manager = new TaskManager(settings);
+    try {
+        await manager.add_update_meili_search_data_task();
+        await manager.run();
+    } finally {
+        if (!manager.aborted) manager.close();
+    }
+}
 async function main() {
     await sure_dir(settings.base);
     if (cmd == CMD.Download) {
@@ -129,6 +142,8 @@ async function main() {
         await update_tag_translation();
     } else if (cmd == CMD.ExportZip) {
         await export_zip();
+    } else if (cmd == CMD.UpdateMeiliSearchData) {
+        await update_meili_search_data();
     }
 }
 
diff --git a/meilisearch.ts b/meilisearch.ts
new file mode 100644
index 0000000..3fe0d55
--- /dev/null
+++ b/meilisearch.ts
@@ -0,0 +1,138 @@
+import {
+    EnqueuedTask,
+    Index,
+    MeiliSearch,
+    MeiliSearchApiError,
+} from "meilisearch";
+import { sleep } from "./utils.ts";
+import { EhDb } from "./db.ts";
+import isEqual from "lodash/isEqual";
+
+const GMetaSettings: Record<string, unknown> = {
+    displayedAttributes: ["*"],
+    searchableAttributes: [
+        "title",
+        "title_jpn",
+        "uploader",
+        "tags.tag",
+        "tags.translated",
+    ],
+    filterableAttributes: [
+        "category",
+        "expunged",
+        "filecount",
+        "filesize",
+        "gid",
+        "posted",
+        "rating",
+        "tags.id",
+        "tags.tag",
+        "tags.translated",
+        "uploader",
+    ],
+    sortableAttributes: ["filecount", "filesize", "gid", "posted", "rating"],
+};
+
+export class MeiliSearchServer {
+    client;
+    db;
+    handle;
+    #gmeta?: Index;
+    #inited = false;
+    target;
+    constructor(host: string, api_key: string, db: EhDb, signal?: AbortSignal) {
+        this.client = new MeiliSearch({
+            host,
+            apiKey: api_key,
+            requestConfig: { signal },
+        });
+        this.db = db;
+        this.handle = (e: Event) => {
+            this.#gallery_update(e);
+        };
+        this.target = new EventTarget();
+        this.target.addEventListener("gallery_update", this.handle);
+    }
+    #gallery_update(e: Event) {
+        const ev = e as CustomEvent<number>;
+        this.updateGallery(ev.detail);
+    }
+    async #updateGMetaSettings() {
+        if (this.#gmeta) {
+            const o: Record<string, unknown> = await this.#gmeta.getSettings();
+            const u: Record<string, unknown> = {};
+            let need_update = false;
+            Object.getOwnPropertyNames(GMetaSettings).forEach((k) => {
+                if (!isEqual(o[k], GMetaSettings[k])) {
+                    u[k] = GMetaSettings[k];
+                    need_update = true;
+                }
+            });
+            if (need_update) {
+                console.log(u);
+                await this.waitTask(this.#gmeta.updateSettings(u));
+            }
+        }
+    }
+    close() {
+        this.target.removeEventListener("gallery_update", this.handle);
+    }
+    async getIndex(uid: string, primaryKey?: string) {
+        try {
+            return await this.client.getIndex(uid);
+        } catch (e) {
+            if (e instanceof MeiliSearchApiError) {
+                if (e.code === "index_not_found") {
+                    await this.waitTask(
+                        this.client.createIndex(uid, { primaryKey }),
+                    );
+                    return await this.client.getIndex(uid);
+                }
+            }
+            throw e;
+        }
+    }
+    get gmeta(): Promise<Index> {
+        return new Promise((resolve, reject) => {
+            const check = () => {
+                if (!this.#gmeta) reject(new Error("gmeta not found."));
+                else resolve(this.#gmeta);
+            };
+            if (!this.#inited) {
+                this.init().then(check).catch(reject);
+            } else {
+                check();
+            }
+        });
+    }
+    async init() {
+        this.#gmeta = await this.getIndex("gmeta", "gid");
+        this.#updateGMetaSettings();
+        this.#inited = true;
+    }
+    async updateGallery(...gids: number[]) {
+        const gmeta = await this.gmeta;
+        const datas = gids.map((gid) => {
+            const d = this.db.get_gmeta_by_gid(gid);
+            if (!d) throw Error("Gallery not found.");
+            const e = <Record<string, unknown>> d;
+            e.tags = this.db.get_gtags_full(gid);
+            return e;
+        });
+        await this.waitTask(gmeta.updateDocuments(datas));
+    }
+    async waitTask(task: EnqueuedTask | Promise<EnqueuedTask>) {
+        if (task instanceof Promise) {
+            task = await task;
+        }
+        let status = await this.client.getTask(task.taskUid);
+        while (status.status === "enqueued" || status.status === "processing") {
+            await sleep(100);
+            status = await this.client.getTask(task.taskUid);
+        }
+        if (status.status === "failed") {
+            throw status.error ? status.error : new Error("Task failed.");
+        }
+        return status;
+    }
+}
diff --git a/page/GalleryMetadata.ts b/page/GalleryMetadata.ts
index c5d6baa..69d6e12 100644
--- a/page/GalleryMetadata.ts
+++ b/page/GalleryMetadata.ts
@@ -1,3 +1,4 @@
+import { unescape } from "std/html/mod.ts";
 import { GMeta } from "../db.ts";
 
 export type GalleryMetadataTorrentInfo = {
@@ -12,10 +13,13 @@ export type GalleryMetadataSingle = {
     gid: number;
     token: string;
     archiver_key: string;
+    /// HTML escaped
     title: string;
+    /// HTML escaped
     title_jpn: string;
     category: string;
     thumb: string;
+    /// HTML escaped
     uploader: string;
     posted: string;
     filecount: string;
@@ -45,10 +49,10 @@ class GalleryMetadata {
         return {
             gid: g.gid,
             token: g.token,
-            title: g.title,
-            title_jpn: g.title_jpn,
+            title: unescape(g.title),
+            title_jpn: unescape(g.title_jpn),
             category: g.category,
-            uploader: g.uploader,
+            uploader: unescape(g.uploader),
             posted: parseInt(g.posted),
             filecount: parseInt(g.filecount),
             filesize: g.filesize,
diff --git a/page/GalleryMetadata_test.ts b/page/GalleryMetadata_test.ts
index daaa4fe..09f1c4e 100644
--- a/page/GalleryMetadata_test.ts
+++ b/page/GalleryMetadata_test.ts
@@ -1,3 +1,4 @@
+import { assert, assertEquals } from "std/testing/asserts.ts";
 import { Client } from "../client.ts";
 import { load_settings } from "../config.ts";
 import { API_PERMISSION } from "../test_base.ts";
@@ -8,6 +9,17 @@ Deno.test({
 }, async () => {
     const cfg = await load_settings("./config.json");
     const client = new Client(cfg);
-    const re = await client.fetchGalleryMetadataByAPI([2552611, "3132307627"]);
+    const re = await client.fetchGalleryMetadataByAPI([1389215, "b5e43bd12d"]);
     console.log(re.obj);
+    const gdata = re.map.get(1389215);
+    assert(gdata !== undefined && typeof gdata !== "string");
+    assertEquals(
+        gdata.title,
+        "(C95) [Shiratamaco (Shiratama)] Usagi Syndrome 4 (Gochuumon wa Usagi desu ka?) [Chinese] [白玉症候群&amp;绅士仓库联合汉化]",
+    );
+    const gmeta = re.convert(gdata);
+    assertEquals(
+        gmeta.title,
+        "(C95) [Shiratamaco (Shiratama)] Usagi Syndrome 4 (Gochuumon wa Usagi desu ka?) [Chinese] [白玉症候群&绅士仓库联合汉化]",
+    );
 });
diff --git a/scripts/gen_meili_server_key.ts b/scripts/gen_meili_server_key.ts
new file mode 100644
index 0000000..cc66dae
--- /dev/null
+++ b/scripts/gen_meili_server_key.ts
@@ -0,0 +1,34 @@
+import { MeiliSearch } from "meilisearch";
+
+async function gen_key(host: string, master_key: string) {
+    const client = new MeiliSearch({ host, apiKey: master_key });
+    const key = await client.createKey({
+        name: "eh_downloader_update_key",
+        description: "EH Downloader Update Key",
+        actions: ["*"],
+        indexes: ["gmeta"],
+        expiresAt: null,
+    });
+    console.log("Update Key: ", key.key);
+    const skey = await client.createKey({
+        name: "eh_downloader_search_key",
+        description: "EH Downloader Search Key",
+        actions: ["search"],
+        indexes: ["gmeta"],
+        expiresAt: null,
+    });
+    console.log("Search Key: ", skey.key);
+}
+
+function show_help() {
+    console.log("gen_meili_server_key <HOST> <MASTER_KEY>");
+}
+
+if (Deno.args.length < 2) {
+    show_help();
+    Deno.exit(0);
+}
+
+const host = Deno.args[0];
+const master_key = Deno.args[1];
+gen_key(host, master_key);
diff --git a/task.ts b/task.ts
index f9d04a5..09427a7 100644
--- a/task.ts
+++ b/task.ts
@@ -1,6 +1,7 @@
 export enum TaskType {
     Download,
     ExportZip,
+    UpdateMeiliSearchData,
 }
 
 export type Task<T extends TaskType = TaskType> = {
@@ -23,9 +24,15 @@ export type TaskExportZipProgress = {
     total_page: number;
 };
 
+export type TaskUpdateMeiliSearchDataProgress = {
+    total_gallery: number;
+    updated_gallery: number;
+};
+
 export type TaskProgressBasicType = {
     [TaskType.Download]: TaskDownloadProgess;
     [TaskType.ExportZip]: TaskExportZipProgress;
+    [TaskType.UpdateMeiliSearchData]: TaskUpdateMeiliSearchDataProgress;
 };
 
 export type TaskProgress<T extends TaskType = TaskType> = {
diff --git a/task_manager.ts b/task_manager.ts
index ffbe7f5..3bf09f1 100644
--- a/task_manager.ts
+++ b/task_manager.ts
@@ -1,6 +1,7 @@
 import { Client } from "./client.ts";
 import { Config } from "./config.ts";
 import { EhDb } from "./db.ts";
+import { MeiliSearchServer } from "./meilisearch.ts";
 import { check_running } from "./pid_check.ts";
 import { add_exit_handler } from "./signal_handler.ts";
 import { Task, TaskProgress, TaskProgressBasicType, TaskType } from "./task.ts";
@@ -10,6 +11,7 @@ import {
     export_zip,
     ExportZipConfig,
 } from "./tasks/export_zip.ts";
+import { update_meili_search_data } from "./tasks/update_meili_search_data.ts";
 import {
     DiscriminatedUnion,
     promiseState,
@@ -46,6 +48,7 @@ export class TaskManager extends EventTarget {
     db;
     running_tasks: Map<number, RunningTask>;
     max_task_count;
+    meilisearch?: MeiliSearchServer;
     #abort;
     #force_abort;
     constructor(cfg: Config) {
@@ -58,6 +61,14 @@ export class TaskManager extends EventTarget {
         this.running_tasks = new Map();
         this.max_task_count = cfg.max_task_count;
         add_exit_handler(this);
+        if (this.cfg.meili_host && this.cfg.meili_update_api_key) {
+            this.meilisearch = new MeiliSearchServer(
+                this.cfg.meili_host,
+                this.cfg.meili_update_api_key,
+                this.db,
+                this.force_aborts,
+            );
+        }
     }
     async #add_task(task: Task) {
         const r = await this.db.add_task(task);
@@ -112,6 +123,17 @@ export class TaskManager extends EventTarget {
         };
         return await this.#add_task(task);
     }
+    async add_update_meili_search_data_task(gid?: number) {
+        const task: Task = {
+            gid: gid ? gid : 0,
+            token: "",
+            id: 0,
+            pid: Deno.pid,
+            type: TaskType.UpdateMeiliSearchData,
+            details: null,
+        };
+        return await this.#add_task(task);
+    }
     async check_task(task: Task) {
         this.#check_closed();
         if (await this.check_task_is_running(task)) return;
@@ -267,6 +289,11 @@ export class TaskManager extends EventTarget {
                     base: task,
                 },
             );
+        } else if (task.type === TaskType.UpdateMeiliSearchData) {
+            this.running_tasks.set(task.id, {
+                task: update_meili_search_data(task, this),
+                base: task,
+            });
         }
     }
     async waiting_unfinished_task() {
diff --git a/tasks/download.ts b/tasks/download.ts
index d88bbb9..47030ca 100644
--- a/tasks/download.ts
+++ b/tasks/download.ts
@@ -109,6 +109,11 @@ export async function download_task(
     const gmeta = gdatas.convert(gdata);
     db.add_gmeta(gmeta);
     await db.add_gtag(task.gid, new Set(gdata.tags));
+    if (manager.meilisearch) {
+        manager.meilisearch.target.dispatchEvent(
+            new CustomEvent("gallery_update", { detail: gmeta.gid }),
+        );
+    }
     const base_path = join(cfg.base, task.gid.toString());
     await sure_dir(base_path);
     const m = new DownloadManager(cfg, abort, force_abort, task, manager);
diff --git a/tasks/update_meili_search_data.ts b/tasks/update_meili_search_data.ts
new file mode 100644
index 0000000..e82fdb4
--- /dev/null
+++ b/tasks/update_meili_search_data.ts
@@ -0,0 +1,21 @@
+import { Task } from "../task.ts";
+import { TaskManager } from "../task_manager.ts";
+
+export async function update_meili_search_data(
+    task: Task,
+    manager: TaskManager,
+) {
+    if (!manager.meilisearch) throw Error("MeiliServer not found.");
+    if (task.gid !== 0) {
+        await manager.meilisearch.updateGallery(task.gid);
+    } else {
+        let i = manager.db.get_gids();
+        let offset = 0;
+        while (i.length) {
+            await manager.meilisearch.updateGallery(...i);
+            offset += i.length;
+            i = manager.db.get_gids(offset);
+        }
+    }
+    return task;
+}