diff --git a/lib/client.js b/lib/client.js
index 31252a2..b401880 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -25,7 +25,8 @@ const permanentCaps = [
 	"soju.im/bouncer-networks",
 ];
 
-const RECONNECT_DELAY_SEC = 10;
+const RECONNECT_MIN_DELAY_MSEC = 10 * 1000; // 10s
+const RECONNECT_MAX_DELAY_MSEC = 10 * 60 * 1000; // 10min
 
 // WebSocket status codes
 // https://www.rfc-editor.org/rfc/rfc6455.html#section-7.4.1
@@ -64,6 +65,38 @@ class IRCError extends Error {
 	}
 }
 
+/**
+ * Implements a simple exponential backoff.
+ */
+class Backoff {
+	n = 0;
+
+	constructor(min, max) {
+		this.min = min;
+		this.max = max;
+	}
+
+	reset() {
+		this.n = 0;
+	}
+
+	next() {
+		if (this.n === 0) {
+			this.n = 1;
+			return this.min;
+		}
+
+		let dur = this.n * this.min;
+		if (dur > this.max) {
+			dur = this.max;
+		} else {
+			this.n *= 2;
+		}
+
+		return dur;
+	}
+}
+
 export default class Client extends EventTarget {
 	static Status = {
 		DISCONNECTED: "disconnected",
@@ -95,6 +128,7 @@ export default class Client extends EventTarget {
 	batches = new Map();
 	autoReconnect = true;
 	reconnectTimeoutID = null;
+	reconnectBackoff = new Backoff(RECONNECT_MIN_DELAY_MSEC, RECONNECT_MAX_DELAY_MSEC);
 	pingIntervalID = null;
 	pendingCmds = {
 		WHO: Promise.resolve(null),
@@ -171,11 +205,12 @@ export default class Client extends EventTarget {
 					};
 					window.addEventListener("online", handleOnline);
 				} else {
-					console.info("Reconnecting to server in " + RECONNECT_DELAY_SEC + " seconds");
+					let delay = this.reconnectBackoff.next();
+					console.info("Reconnecting to server in " + (delay / 1000) + " seconds");
 					clearTimeout(this.reconnectTimeoutID);
 					this.reconnectTimeoutID = setTimeout(() => {
 						this.reconnect();
-					}, RECONNECT_DELAY_SEC * 1000);
+					}, delay);
 				}
 			}
 		});
@@ -210,6 +245,8 @@ export default class Client extends EventTarget {
 		console.log("Connection opened");
 		this.setStatus(Client.Status.REGISTERING);
 
+		this.reconnectBackoff.reset();
+
 		this.nick = this.params.nick;
 
 		this.send({ command: "CAP", params: ["LS", "302"] });