diff --git a/apps/hyperdrive-trading/src/network/wagmiClient.ts b/apps/hyperdrive-trading/src/network/wagmiClient.ts
index ef17f149e..592fbfca1 100644
--- a/apps/hyperdrive-trading/src/network/wagmiClient.ts
+++ b/apps/hyperdrive-trading/src/network/wagmiClient.ts
@@ -13,19 +13,41 @@ import { capsuleWallet } from "src/wallets/capsule";
 import { Chain, http, Transport } from "viem";
 import { base, foundry, gnosis, linea, mainnet, sepolia } from "wagmi/chains";
 
-const {
-  VITE_LOCALHOST_NODE_RPC_URL,
-  VITE_CUSTOM_CHAIN_NODE_RPC_URL,
-  VITE_CUSTOM_CHAIN_CHAIN_ID,
-  VITE_WALLET_CONNECT_PROJECT_ID,
-  VITE_SEPOLIA_RPC_URL,
-  VITE_MAINNET_RPC_URL,
-  VITE_LINEA_RPC_URL,
-  VITE_BASE_RPC_URL,
-  VITE_GNOSIS_FORK_NODE_RPC_URL,
-  VITE_GNOSIS_FORK_CHAIN_ID,
-  VITE_GNOSIS_NODE_RPC_URL,
-} = import.meta.env;
+// Allow users to override the default RPC URL by setting it in local storage,
+// especially useful for custom networks/chains
+const VITE_LOCALHOST_NODE_RPC_URL =
+  localStorage.getItem("VITE_LOCALHOST_NODE_RPC_URL") ||
+  import.meta.env.VITE_LOCALHOST_NODE_RPC_URL;
+const VITE_CUSTOM_CHAIN_NODE_RPC_URL =
+  localStorage.getItem("VITE_CUSTOM_CHAIN_NODE_RPC_URL") ||
+  import.meta.env.VITE_CUSTOM_CHAIN_NODE_RPC_URL;
+const VITE_CUSTOM_CHAIN_CHAIN_ID =
+  localStorage.getItem("VITE_CUSTOM_CHAIN_CHAIN_ID") ||
+  import.meta.env.VITE_CUSTOM_CHAIN_CHAIN_ID;
+const VITE_WALLET_CONNECT_PROJECT_ID =
+  localStorage.getItem("VITE_WALLET_CONNECT_PROJECT_ID") ||
+  import.meta.env.VITE_WALLET_CONNECT_PROJECT_ID;
+const VITE_SEPOLIA_RPC_URL =
+  localStorage.getItem("VITE_SEPOLIA_RPC_URL") ||
+  import.meta.env.VITE_SEPOLIA_RPC_URL;
+const VITE_MAINNET_RPC_URL =
+  localStorage.getItem("VITE_MAINNET_RPC_URL") ||
+  import.meta.env.VITE_MAINNET_RPC_URL;
+const VITE_LINEA_RPC_URL =
+  localStorage.getItem("VITE_LINEA_RPC_URL") ||
+  import.meta.env.VITE_LINEA_RPC_URL;
+const VITE_BASE_RPC_URL =
+  localStorage.getItem("VITE_BASE_RPC_URL") ||
+  import.meta.env.VITE_BASE_RPC_URL;
+const VITE_GNOSIS_FORK_NODE_RPC_URL =
+  localStorage.getItem("VITE_GNOSIS_FORK_NODE_RPC_URL") ||
+  import.meta.env.VITE_GNOSIS_FORK_NODE_RPC_URL;
+const VITE_GNOSIS_FORK_CHAIN_ID =
+  localStorage.getItem("VITE_GNOSIS_FORK_CHAIN_ID") ||
+  import.meta.env.VITE_GNOSIS_FORK_CHAIN_ID;
+const VITE_GNOSIS_NODE_RPC_URL =
+  localStorage.getItem("VITE_GNOSIS_NODE_RPC_URL") ||
+  import.meta.env.VITE_GNOSIS_NODE_RPC_URL;
 
 interface WagmiClientConfig {
   rpcUrl: string;
diff --git a/apps/hyperdrive-trading/src/ui/app/Navbar/Navbar.tsx b/apps/hyperdrive-trading/src/ui/app/Navbar/Navbar.tsx
index f5a90b2c7..c65d57b35 100644
--- a/apps/hyperdrive-trading/src/ui/app/Navbar/Navbar.tsx
+++ b/apps/hyperdrive-trading/src/ui/app/Navbar/Navbar.tsx
@@ -9,6 +9,7 @@ import { ExternalLink } from "src/ui/analytics/ExternalLink";
 import { useAnalyticsUrl } from "src/ui/analytics/useMarketAnalyticsUrl";
 import { HyperdriveLogo } from "src/ui/app/Navbar/HyperdriveLogo";
 import { useIsTailwindSmallScreen } from "src/ui/base/mediaBreakpoints";
+import { RpcForm } from "src/ui/chains/RpcForm";
 
 export function Navbar(): ReactElement {
   const analyticsUrl = useAnalyticsUrl();
@@ -40,6 +41,7 @@ export function Navbar(): ReactElement {
           <ArrowTopRightOnSquareIcon className="-mt-0.5 inline h-4" />
         </ExternalLink>
 
+        <RpcForm />
         <ConnectButton
           accountStatus={isTailwindSmall ? "avatar" : "full"}
           showBalance={false}
diff --git a/apps/hyperdrive-trading/src/ui/chains/RpcForm.tsx b/apps/hyperdrive-trading/src/ui/chains/RpcForm.tsx
new file mode 100644
index 000000000..325e90fd1
--- /dev/null
+++ b/apps/hyperdrive-trading/src/ui/chains/RpcForm.tsx
@@ -0,0 +1,90 @@
+import { ReactElement, useState } from "react";
+
+// All the RPC endpoints that have been configured and are therefore used in
+// this deployment of the UI
+const configuredRpcEndpoints = [
+  ["Hardhat", "VITE_LOCALHOST_NODE_RPC_URL"],
+  ["CloudChain", "VITE_CUSTOM_CHAIN_NODE_RPC_URL"],
+  ["Mainnet", "VITE_MAINNET_RPC_URL"],
+  ["Linea", "VITE_LINEA_RPC_URL"],
+  ["Base", "VITE_BASE_RPC_URL"],
+  ["Gnosischain", "VITE_GNOSIS_NODE_RPC_URL"],
+  ["GnosisFork", "VITE_GNOSIS_FORK_NODE_RPC_URL"],
+]
+  .filter(([unusedName, key]) => typeof import.meta.env[key] !== "undefined")
+  .map(([name, key]) => {
+    return [name, key, localStorage.getItem(key) || import.meta.env[key]];
+  });
+
+export function RpcForm(): ReactElement {
+  return (
+    <>
+      {/* Open the modal using document.getElementById('ID').showModal() method */}
+      <button
+        className="daisy-btn m-1 rounded-full"
+        // @ts-expect-error rpcModal is a Dialog element, and React doesn't
+        // provide the correct types for now
+        onClick={() => document.getElementById("rpcModal")?.showModal()}
+      >
+        Configure RPC
+      </button>
+      <dialog id="rpcModal" className="daisy-modal">
+        <div className="daisy-modal-box w-[600px] max-w-[600px]">
+          <div className="daisy-card-body">
+            <h3 className="daisy-card-title">RPC URLs</h3>
+            <p>Refresh after saving to see changes</p>
+            {configuredRpcEndpoints.map(([name, key, rpcUrl]) => {
+              return (
+                <RpcInput
+                  key={key}
+                  rpcName={name}
+                  rpcKey={key}
+                  rpcUrl={rpcUrl}
+                />
+              );
+            })}
+          </div>
+          <div className="daisy-modal-action">
+            <form method="dialog">
+              {/* if there is a button in form, it will close the modal */}
+              <button className="daisy-btn">Close</button>
+            </form>
+          </div>
+        </div>
+      </dialog>
+    </>
+  );
+}
+
+function RpcInput({
+  rpcName,
+  rpcUrl,
+  rpcKey,
+}: {
+  rpcName: string;
+  rpcUrl: string;
+  rpcKey: string;
+}) {
+  const [rpcUrlDraft, setRpcUrlDraft] = useState(rpcUrl);
+  return (
+    <div className="daisy-join">
+      <div className="daisy-btn daisy-join-item daisy-btn-neutral">
+        {rpcName}
+      </div>
+      <input
+        type="text"
+        value={rpcUrlDraft}
+        onChange={(e) => setRpcUrlDraft(e.target.value)}
+        className="daisy-input daisy-join-item w-full"
+      />
+      <button
+        onClick={() => {
+          localStorage.setItem(rpcKey, rpcUrlDraft);
+        }}
+        className="daisy-btn daisy-btn-primary daisy-join-item"
+      >
+        Save
+      </button>
+    </div>
+  );
+}