diff --git a/app/db/models/users/findByIdentifier.sql b/app/db/models/users/findByIdentifier.sql
index c99d54ab0..4c148ef0d 100644
--- a/app/db/models/users/findByIdentifier.sql
+++ b/app/db/models/users/findByIdentifier.sql
@@ -6,4 +6,5 @@ from
   left join "PlusTier" on "PlusTier"."userId" = "User"."id"
 where
   "discordId" = @identifier
-  or "id" = @identifier
\ No newline at end of file
+  or "id" = @identifier
+  or "customUrl" = @identifier
diff --git a/app/db/seed.ts b/app/db/seed.ts
index 41056f8a6..96ca3d9a0 100644
--- a/app/db/seed.ts
+++ b/app/db/seed.ts
@@ -34,7 +34,7 @@ const basicSeeds = [
   adminUser,
   nzapUser,
   users,
-  userBios,
+  userProfiles,
   lastMonthsVoting,
   lastMonthSuggestions,
   thisMonthsSuggestions,
@@ -107,7 +107,39 @@ function users() {
   new Array(500).fill(null).map(fakeUser(usedNames)).forEach(db.users.upsert);
 }
 
-function userBios() {
+function userProfiles() {
+  for (const args of [
+    {
+      userId: 1,
+      country: "FI",
+      customUrl: "sendou",
+      motionSens: 50,
+      stickSens: 5,
+      inGameName: "Sendou#1234",
+    },
+    {
+      userId: 2,
+      country: "SE",
+      customUrl: "nzap",
+      motionSens: -40,
+      stickSens: 0,
+      inGameName: "N-ZAP#5678",
+    },
+  ]) {
+    sql
+      .prepare(
+        `
+        UPDATE "User" SET 
+          country = $country,
+          customUrl = $customUrl,
+          motionSens = $motionSens,
+          stickSens = $stickSens,
+          inGameName = $inGameName
+        WHERE id = $userId`
+      )
+      .run(args);
+  }
+
   for (let id = 3; id < 500; id++) {
     if (Math.random() < 0.25) continue; // 75% have bio
 
diff --git a/app/routes/u.$identifier/edit.tsx b/app/routes/u.$identifier/edit.tsx
index 011e1bad5..2be21bde7 100644
--- a/app/routes/u.$identifier/edit.tsx
+++ b/app/routes/u.$identifier/edit.tsx
@@ -15,6 +15,7 @@ import { useTranslation } from "react-i18next";
 import invariant from "tiny-invariant";
 import { z } from "zod";
 import { Button } from "~/components/Button";
+import { Input } from "~/components/Input";
 import { Label } from "~/components/Label";
 import { Main } from "~/components/Main";
 import { USER } from "~/constants";
@@ -46,17 +47,25 @@ const userEditActionSchema = z.object({
     falsyToNull,
     z.string().max(USER.BIO_MAX_LENGTH).nullable()
   ),
+  // xxx: return error if using duplicate custom url
   customUrl: z.preprocess(
     falsyToNull,
     z
       .string()
       .max(USER.CUSTOM_URL_MAX_LENGTH)
+      .nullable()
       .refine(
         (val) => val === null || Number.isNaN(Number(val)),
         // xxx: translate
         "Name in the custom URL can't only contain numbers"
       )
-      .nullable()
+      .refine(
+        // validate val only contains numbers and letters
+        (val) => val === null || /^[a-zA-Z0-9-_]+$/.test(val),
+        // xxx: translate
+        "Custom URL can't contain special characters"
+      )
+      .transform((val) => val?.toLowerCase())
   ),
   stickSens: z.preprocess(
     undefinedToNull,
@@ -134,6 +143,7 @@ export default function UserEditPage() {
   return (
     <Main>
       <Form className="u-edit__container" method="post">
+        <CustomUrlInput parentRouteData={parentRouteData} />
         <CountrySelect parentRouteData={parentRouteData} />
         <BioTextarea initialValue={parentRouteData.bio} />
         <Button
@@ -149,6 +159,27 @@ export default function UserEditPage() {
   );
 }
 
+function CustomUrlInput({
+  parentRouteData,
+}: {
+  parentRouteData: UserPageLoaderData;
+}) {
+  // xxx: same width as textarea?
+  // xxx: translate
+  // xxx: url from constant?
+  return (
+    <div className="stack items-start">
+      <Label htmlFor="customUrl">Custom URL</Label>
+      <Input
+        name="customUrl"
+        leftAddon="https://sendou.ink/u/"
+        maxLength={USER.CUSTOM_URL_MAX_LENGTH}
+        defaultValue={parentRouteData.customUrl ?? undefined}
+      />
+    </div>
+  );
+}
+
 function CountrySelect({
   parentRouteData,
 }: {