diff --git a/src/extensions/String.ts b/src/extensions/String.ts
new file mode 100644
index 00000000..5c623e30
--- /dev/null
+++ b/src/extensions/String.ts
@@ -0,0 +1,68 @@
+/*
+ Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
+ Copyright (C) 2023 Spacebar and Spacebar Contributors
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { Request } from "express";
+import { SPECIAL_CHAR } from "@spacebar/util/util/Regex";
+import { Random } from "@spacebar/extensions/Random";
+import { ntob } from "@spacebar/api";
+import { FieldErrors } from "@spacebar/util";
+
+export function trimSpecial(str?: string): string {
+ if (!str) return "";
+ return str.replace(SPECIAL_CHAR, "").trim();
+}
+
+/**
+ * Capitalizes the first letter of a string.
+ * @param str The string to capitalize.
+ * @returns The capitalized string.
+ */
+export function capitalize(str: string): string {
+ if (!str) return "";
+ return str.charAt(0).toUpperCase() + str.slice(1);
+}
+
+export function centerString(str: string, len: number): string {
+ const pad = len - str.length;
+ const padLeft = Math.floor(pad / 2) + str.length;
+ return str.padStart(padLeft).padEnd(len);
+}
+
+export function stringGlobToRegexp(str: string, flags?: string): RegExp {
+ // Convert simple wildcard patterns to regex
+ const escaped = str.replace(".", "\\.").replace("?", ".").replace("*", ".*");
+ return new RegExp(escaped, flags);
+}
+
+export function stringCheckLength(str: string, min: number, max: number, key: string, req: Request) {
+ if (str.length < min || str.length > max) {
+ throw FieldErrors({
+ [key]: {
+ code: "BASE_TYPE_BAD_LENGTH",
+ // TODO: remove dependency on request (add generic field?)
+ message: req.t("common:field.BASE_TYPE_BAD_LENGTH", {
+ length: `${min} - ${max}`,
+ }),
+ },
+ });
+ }
+}
+
+export function generateCode() {
+ return ntob(Date.now() + Random.nextInt(0, 10000));
+}
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