diff --git a/web-common/src/features/explore-mappers/utils.spec.ts b/web-common/src/features/explore-mappers/utils.spec.ts
new file mode 100644
index 00000000000..0f3eb05c49f
--- /dev/null
+++ b/web-common/src/features/explore-mappers/utils.spec.ts
@@ -0,0 +1,34 @@
+import { getExploreName } from "@rilldata/web-common/features/explore-mappers/utils.ts";
+import { describe, expect, it } from "vitest";
+
+describe("getExploreName", () => {
+  it("decodes a simple explore name", () => {
+    expect(getExploreName("/explore/my_explore")).toBe("my_explore");
+  });
+
+  it("decodes spaces encoded as %20", () => {
+    expect(getExploreName("/explore/My%20Explore")).toBe("My Explore");
+  });
+
+  it("preserves parentheses and hyphens (does not truncate at non-word characters)", () => {
+    expect(
+      getExploreName(
+        "/explore/Sales%20Overview%20-%20Region%20(EMEA%20under%20review)",
+      ),
+    ).toBe("Sales Overview - Region (EMEA under review)");
+  });
+
+  it("stops at a query string boundary", () => {
+    expect(
+      getExploreName("/explore/My%20Explore?execution_time=2026-06-04"),
+    ).toBe("My Explore");
+  });
+
+  it("stops at a trailing slash", () => {
+    expect(getExploreName("/explore/My%20Explore/")).toBe("My Explore");
+  });
+
+  it("returns an empty string when the path has no explore segment", () => {
+    expect(getExploreName("/canvas/my_canvas")).toBe("");
+  });
+});
diff --git a/web-common/src/features/explore-mappers/utils.ts b/web-common/src/features/explore-mappers/utils.ts
index 10209f0dc07..54d5c0396a4 100644
--- a/web-common/src/features/explore-mappers/utils.ts
+++ b/web-common/src/features/explore-mappers/utils.ts
@@ -112,7 +112,10 @@ export async function fillTimeRange(
   }
 }
 
-const ExploreNameRegex = /\/explore\/((?:[\w-]|%[0-9A-Fa-f]{2})+)/;
+// Capture everything after "/explore/" up to the next path, query, or hash boundary.
+// This mirrors the backend's exploreNameFromAnnotations, which decodes the entire segment
+// rather than restricting to word characters (explore names can contain spaces, parentheses, etc.).
+const ExploreNameRegex = /\/explore\/([^/?#]+)/;
 
 export function getExploreName(webOpenPath: string) {
   const matches = ExploreNameRegex.exec(webOpenPath);