diff --git a/apps/website/app/(home)/auth/group/[groupId]/page.tsx b/apps/website/app/(home)/auth/group/[groupId]/page.tsx
new file mode 100644
index 000000000..abbcd45e6
--- /dev/null
+++ b/apps/website/app/(home)/auth/group/[groupId]/page.tsx
@@ -0,0 +1,78 @@
+import { redirect, notFound } from "next/navigation";
+import Link from "next/link";
+import { createClient } from "~/utils/supabase/server";
+import { getSessionBaseUserData } from "~/utils/supabase/account";
+import { GroupMemberList } from "~/components/auth/GroupMemberList";
+import { GroupInvite } from "~/components/auth/GroupInvite";
+import internalError from "~/utils/internalErrorSsr";
+
+const Page = async ({
+  params,
+  searchParams,
+}: {
+  params: Promise<{ groupId: string }>;
+  searchParams: Promise<{
+    token?: string;
+    tokenError?: string;
+    removeError?: string;
+  }>;
+}) => {
+  const { groupId } = await params;
+  const sp = await searchParams;
+
+  const client = await createClient();
+  const userData = await getSessionBaseUserData(client);
+  if (!userData)
+    redirect("/auth/error?error=" + encodeURIComponent("Not logged in"));
+
+  const membershipReq = await client
+    .from("group_membership")
+    .select("admin")
+    .eq("group_id", groupId)
+    .eq("member_id", userData.id)
+    .maybeSingle();
+  if (membershipReq.error) {
+    internalError({ error: membershipReq.error });
+    redirect("/auth/error?error=" + encodeURIComponent("Could not load group"));
+  }
+  if (!membershipReq.data) notFound();
+  const isAdmin = membershipReq.data.admin === true;
+
+  const groupReq = await client
+    .from("my_groups")
+    .select("name")
+    .eq("id", groupId)
+    .maybeSingle();
+  if (groupReq.error) {
+    internalError({ error: groupReq.error });
+    redirect("/auth/error?error=" + encodeURIComponent("Could not load group"));
+  }
+  const groupName = groupReq.data?.name ?? groupId;
+
+  return (
+    <main>
+      <div className="mx-auto max-w-3xl space-y-8 px-6 py-12">
+        <Link href="/auth/group" className="float-right">
+          Back to group page
+        </Link>
+        <div>
+          <h1 className="text-2xl font-bold">{groupName}</h1>
+        </div>
+        <GroupMemberList
+          groupId={groupId}
+          isAdmin={isAdmin}
+          removeError={sp.removeError}
+        />
+        {isAdmin && (
+          <GroupInvite
+            groupId={groupId}
+            token={sp.token}
+            tokenError={sp.tokenError}
+          />
+        )}
+      </div>
+    </main>
+  );
+};
+
+export default Page;
diff --git a/apps/website/app/(home)/auth/group/page.tsx b/apps/website/app/(home)/auth/group/page.tsx
index 7d31fa17b..0f5ff8c8e 100644
--- a/apps/website/app/(home)/auth/group/page.tsx
+++ b/apps/website/app/(home)/auth/group/page.tsx
@@ -1,11 +1,27 @@
 import { ListGroups } from "~/components/auth/ListGroups";
+import { JoinGroup } from "~/components/auth/JoinGroup";
+import { CreateGroup } from "~/components/auth/CreateGroup";
 
-const Page = () => (
-  <main>
-    <div className="mx-auto max-w-6xl space-y-12 px-6 py-12">
-      <ListGroups />
-    </div>
-  </main>
-);
+const Page = async ({
+  searchParams,
+}: {
+  searchParams: Promise<{
+    error?: string;
+    joined?: string;
+    createError?: string;
+    created?: string;
+  }>;
+}) => {
+  const params = await searchParams;
+  return (
+    <main>
+      <div className="mx-auto max-w-6xl space-y-12 px-6 py-12">
+        <ListGroups />
+        <CreateGroup error={params.createError} created={params.created} />
+        <JoinGroup error={params.error} joined={params.joined === "1"} />
+      </div>
+    </main>
+  );
+};
 
 export default Page;
diff --git a/apps/website/app/components/auth/CreateGroup.tsx b/apps/website/app/components/auth/CreateGroup.tsx
new file mode 100644
index 000000000..c140c93be
--- /dev/null
+++ b/apps/website/app/components/auth/CreateGroup.tsx
@@ -0,0 +1,50 @@
+import { redirect } from "next/navigation";
+import { createClient } from "~/utils/supabase/server";
+import { createGroup } from "~/utils/supabase/account";
+import { Button } from "@repo/ui/components/ui/button";
+import { Input } from "@repo/ui/components/ui/input";
+
+export const CreateGroup = ({
+  error,
+  created,
+}: {
+  error?: string;
+  created?: string;
+}) => {
+  const createGroupAction = async (formData: FormData) => {
+    "use server";
+    const name = formData.get("name");
+    if (typeof name !== "string" || !name.trim()) {
+      redirect(
+        "/auth/group?createError=" +
+          encodeURIComponent("Please enter a group name"),
+      );
+    }
+    const client = await createClient();
+    const { groupId, error: err } = await createGroup(client, name.trim());
+    if (err) {
+      redirect("/auth/group?createError=" + encodeURIComponent(err));
+    }
+    if (!groupId) {
+      redirect(
+        "/auth/group?createError=" +
+          encodeURIComponent("Failed to create group"),
+      );
+    }
+    redirect("/auth/group?created=" + encodeURIComponent(groupId));
+  };
+
+  return (
+    <section className="space-y-3">
+      <h2 className="text-lg font-semibold">Create a group</h2>
+      {created && (
+        <p className="text-sm text-green-600">Group created successfully.</p>
+      )}
+      {error && <p className="text-destructive text-sm">{error}</p>}
+      <form action={createGroupAction} className="flex gap-2">
+        <Input name="name" placeholder="Group name" className="max-w-sm" />
+        <Button type="submit">Create Group</Button>
+      </form>
+    </section>
+  );
+};
diff --git a/apps/website/app/components/auth/GroupInvite.tsx b/apps/website/app/components/auth/GroupInvite.tsx
new file mode 100644
index 000000000..65507840f
--- /dev/null
+++ b/apps/website/app/components/auth/GroupInvite.tsx
@@ -0,0 +1,49 @@
+import { redirect } from "next/navigation";
+import { createClient } from "~/utils/supabase/server";
+import { createGroupInvitation } from "~/utils/supabase/account";
+import { Button } from "@repo/ui/components/ui/button";
+
+export const GroupInvite = ({
+  groupId,
+  token,
+  tokenError,
+}: {
+  groupId: string;
+  token?: string;
+  tokenError?: string;
+}) => {
+  const createToken = async (formData: FormData) => {
+    "use server";
+    const admin = formData.get("admin") === "true";
+    const client = await createClient();
+    const t = await createGroupInvitation({ client, groupId, admin });
+    if (!t) {
+      redirect(
+        `/auth/group/${groupId}?tokenError=` +
+          encodeURIComponent("Could not create invitation token"),
+      );
+    }
+    redirect(`/auth/group/${groupId}?token=` + encodeURIComponent(t));
+  };
+
+  return (
+    <section className="space-y-3">
+      <h2 className="text-lg font-semibold">Invite to group</h2>
+      {tokenError && <p className="text-destructive text-sm">{tokenError}</p>}
+      {token && (
+        <div className="bg-muted rounded-md border p-3 text-sm">
+          <p className="mb-1 font-medium">Invitation token (valid 60 days):</p>
+          <code className="break-all">{token}</code>
+        </div>
+      )}
+      <div className="flex gap-2">
+        <form action={createToken}>
+          <input type="hidden" name="admin" value="false" />
+          <Button type="submit" variant="outline">
+            Create member token
+          </Button>
+        </form>
+      </div>
+    </section>
+  );
+};
diff --git a/apps/website/app/components/auth/GroupMemberList.tsx b/apps/website/app/components/auth/GroupMemberList.tsx
new file mode 100644
index 000000000..fa4a0d0d8
--- /dev/null
+++ b/apps/website/app/components/auth/GroupMemberList.tsx
@@ -0,0 +1,112 @@
+import { redirect } from "next/navigation";
+import { createClient } from "~/utils/supabase/server";
+import {
+  removeFromGroup,
+  getSessionBaseUserData,
+} from "~/utils/supabase/account";
+import { Button } from "@repo/ui/components/ui/button";
+import internalError from "~/utils/internalErrorSsr";
+
+export const GroupMemberList = async ({
+  groupId,
+  isAdmin,
+  removeError,
+}: {
+  groupId: string;
+  isAdmin: boolean;
+  removeError?: string;
+}) => {
+  const client = await createClient();
+  const clientData = await getSessionBaseUserData(client);
+  const myUserId = clientData?.id;
+  if (!myUserId) {
+    internalError({ error: "Not logged in" });
+    redirect(
+      "/auth/error?error=" +
+        encodeURIComponent("Not logged in.\nPlease log in from application."),
+    );
+  }
+
+  const pseudoAccountReq = await client
+    .from("my_pseudo_accounts")
+    .select()
+    .eq("group_id", groupId);
+
+  if (pseudoAccountReq.error) {
+    internalError({ error: pseudoAccountReq.error });
+    redirect(
+      "/auth/error?error=" + encodeURIComponent("Could not load group members"),
+    );
+  }
+  const pseudoAccountInfo = pseudoAccountReq.data ?? [];
+  const numAdmins = pseudoAccountInfo
+    .map((pa) => (pa.admin ? 1 : 0) as number)
+    .reduce((acc, cur) => acc + cur, 0);
+
+  const removeSpace = async (formData: FormData) => {
+    "use server";
+    const memberId = formData.get("memberId");
+    if (typeof memberId !== "string") return;
+    const c = await createClient();
+    const error = await removeFromGroup({ client: c, groupId, memberId });
+    if (error) {
+      redirect(
+        `/auth/group/${groupId}?removeError=` + encodeURIComponent(error),
+      );
+    }
+    redirect(`/auth/group/${groupId}`);
+  };
+
+  return (
+    <section className="space-y-3">
+      <h2 className="text-lg font-semibold">Member spaces</h2>
+      {removeError && <p className="text-destructive text-sm">{removeError}</p>}
+      {pseudoAccountInfo.length === 0 ? (
+        <p className="text-muted-foreground text-sm">No spaces yet.</p>
+      ) : (
+        <ul className="divide-y rounded-md border">
+          {pseudoAccountInfo.map((pseudoAccount) => {
+            const memberId = pseudoAccount.dg_account;
+            return (
+              <li
+                key={`${pseudoAccount.id}-${pseudoAccount.space_id}`}
+                className="flex items-center justify-between px-4 py-2"
+              >
+                <span>
+                  {pseudoAccount.name}
+                  <span className="text-muted-foreground ml-2 text-xs">
+                    ({pseudoAccount.platform})
+                  </span>
+                  {pseudoAccount.dg_account === myUserId && (
+                    <span className="ml-2 rounded bg-blue-300 px-1.5 py-0.5 text-xs text-blue-900">
+                      me
+                    </span>
+                  )}
+                  {pseudoAccount.admin && (
+                    <span className="ml-2 rounded bg-blue-100 px-1.5 py-0.5 text-xs text-blue-700">
+                      admin
+                    </span>
+                  )}
+                </span>
+                {memberId &&
+                  // allow admins to remove others
+                  // admins should not remove self, unless there's another admin
+                  ((isAdmin &&
+                    (numAdmins > 1 || pseudoAccount.dg_account !== myUserId)) ||
+                    // non-admins can remove self.
+                    pseudoAccount.dg_account === myUserId) && (
+                    <form action={removeSpace}>
+                      <input type="hidden" name="memberId" value={memberId} />
+                      <Button type="submit" variant="destructive" size="sm">
+                        Remove
+                      </Button>
+                    </form>
+                  )}
+              </li>
+            );
+          })}
+        </ul>
+      )}
+    </section>
+  );
+};
diff --git a/apps/website/app/components/auth/JoinGroup.tsx b/apps/website/app/components/auth/JoinGroup.tsx
new file mode 100644
index 000000000..dffe92f23
--- /dev/null
+++ b/apps/website/app/components/auth/JoinGroup.tsx
@@ -0,0 +1,47 @@
+import { redirect } from "next/navigation";
+import { createClient } from "~/utils/supabase/server";
+import { acceptGroupInvitation } from "~/utils/supabase/account";
+import { Button } from "@repo/ui/components/ui/button";
+import { Input } from "@repo/ui/components/ui/input";
+
+export const JoinGroup = ({
+  error,
+  joined,
+}: {
+  error?: string;
+  joined?: boolean;
+}) => {
+  const joinGroup = async (formData: FormData) => {
+    "use server";
+    const token = formData.get("token");
+    if (typeof token !== "string" || !token.trim()) {
+      redirect(
+        "/auth/group?error=" + encodeURIComponent("Please enter a token"),
+      );
+    }
+    const client = await createClient();
+    const err = await acceptGroupInvitation(client, token.trim());
+    if (err) {
+      redirect("/auth/group?error=" + encodeURIComponent(err));
+    }
+    redirect("/auth/group?joined=1");
+  };
+
+  return (
+    <section className="space-y-3">
+      <h2 className="text-lg font-semibold">Join a group</h2>
+      {joined && (
+        <p className="text-sm text-green-600">Successfully joined the group.</p>
+      )}
+      {error && <p className="text-destructive text-sm">{error}</p>}
+      <form action={joinGroup} className="flex gap-2">
+        <Input
+          name="token"
+          placeholder="Paste your invitation token"
+          className="max-w-sm"
+        />
+        <Button type="submit">Join Group</Button>
+      </form>
+    </section>
+  );
+};
diff --git a/packages/ui/src/components/ui/input.tsx b/packages/ui/src/components/ui/input.tsx
new file mode 100644
index 000000000..d4a9306ee
--- /dev/null
+++ b/packages/ui/src/components/ui/input.tsx
@@ -0,0 +1,22 @@
+import * as React from "react";
+
+import { cn } from "@repo/ui/lib/utils";
+
+const Input = React.forwardRef<HTMLInputElement, React.ComponentProps<"input">>(
+  ({ className, type, ...props }, ref) => {
+    return (
+      <input
+        type={type}
+        className={cn(
+          "border-input bg-background ring-offset-background file:text-foreground placeholder:text-muted-foreground focus-visible:ring-ring flex h-10 w-full rounded-md border px-3 py-2 text-base file:border-0 file:bg-transparent file:text-sm file:font-medium focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+          className,
+        )}
+        ref={ref}
+        {...props}
+      />
+    );
+  },
+);
+Input.displayName = "Input";
+
+export { Input };