diff --git a/src/platform/polyfills.ts b/src/platform/polyfills.ts
index 0e9d53e..008fbb4 100644
--- a/src/platform/polyfills.ts
+++ b/src/platform/polyfills.ts
@@ -1,13 +1,15 @@
 //! This module has side effect.
 //! It recommended to include the module by <script> tag.
-if (!document.body.animate) {
+if (typeof document.body.animate === "undefined") {
   // @ts-ignore: this file is polyfill, no exposed decls
-  import("web-animations-js").then(() => { // all target platforms supported, prepared to remove
+  import("web-animations-js").then(() => {
+    // all target platforms supported, prepared to remove
     console.warn("web animation polyfill is included");
   });
 }
 
-if (!window.crypto.randomUUID) { // Chrome/Edge 92+
+if (typeof window.crypto.randomUUID === "undefined") {
+  // Chrome/Edge 92+
   // https://stackoverflow.com/a/2117523/2800218
   // LICENSE: https://creativecommons.org/licenses/by-sa/4.0/legalcode
   window.crypto.randomUUID =
diff --git a/src/platform/share.tsx b/src/platform/share.tsx
new file mode 100644
index 0000000..5f80dc0
--- /dev/null
+++ b/src/platform/share.tsx
@@ -0,0 +1,104 @@
+import {
+  createEffect,
+  createSignal,
+  onCleanup,
+  type Component,
+} from "solid-js";
+import Scaffold from "../material/Scaffold";
+import BottomSheet from "../material/BottomSheet";
+import {
+  Button,
+  IconButton,
+  Input,
+  ThemeProvider,
+  Toolbar,
+} from "@suid/material";
+import { Close as CloseIcon, ContentCopy } from "@suid/icons-material";
+import { Title } from "../material/typography";
+import { render } from "solid-js/web";
+import { useRootTheme } from "../material/mui";
+
+const ShareBottomSheet: Component<{
+  data?: ShareData;
+  open?: boolean;
+  onClose: () => void;
+}> = (props) => {
+  return (
+    <BottomSheet open={props.open} onClose={props.onClose} bottomUp>
+      <Scaffold
+        topbar={
+          <Toolbar>
+            <IconButton onClick={props.onClose}>
+              <CloseIcon />
+            </IconButton>
+            <Title>Share...</Title>
+          </Toolbar>
+        }
+      >
+        <div
+          style={{
+            "padding": "8px 8px calc(var(--safe-area-inset-bottom, 0px) + 40px)",
+            display: "flex",
+          }}
+        >
+          <Input
+            value={props.data?.url}
+            onChange={() => undefined}
+            fullWidth
+          />
+          <Button
+            onClick={() => {
+              navigator.clipboard.writeText(props.data?.url ?? "");
+            }}
+          >
+            <ContentCopy sx={{ marginTop: "-.25em", marginRight: ".25em" }} />
+            Copy
+          </Button>
+        </div>
+      </Scaffold>
+    </BottomSheet>
+  );
+};
+
+export function canShare(data?: ShareData) {
+  if (navigator.canShare) {
+    return navigator.canShare(data);
+  }
+  return !!data?.url;
+}
+
+export async function share(data?: ShareData): Promise<void> {
+  if (navigator.share) {
+    return await navigator.share(data);
+  }
+
+  return new Promise((resolve) => {
+    const element = document.createElement("div");
+    document.body.appendChild(element);
+
+    const dispose = render(() => {
+      const [open, setOpen] = createSignal(true);
+      const theme = useRootTheme();
+      onCleanup(() => {
+        element.remove();
+        resolve();
+      });
+
+      createEffect(() => {
+        if (!open()) {
+          dispose();
+        }
+      });
+
+      return (
+        <ThemeProvider theme={theme()}>
+          <ShareBottomSheet
+            data={data}
+            open={open()}
+            onClose={() => setOpen(false)}
+          />
+        </ThemeProvider>
+      );
+    }, element);
+  });
+}
diff --git a/src/timelines/RegularToot.tsx b/src/timelines/RegularToot.tsx
index 30376de..1c9eb60 100644
--- a/src/timelines/RegularToot.tsx
+++ b/src/timelines/RegularToot.tsx
@@ -27,16 +27,18 @@ import {
   StarOutline,
   Bookmark,
   Reply,
+  Share,
 } from "@suid/icons-material";
 import { useTimeSource } from "../platform/timesrc.js";
 import { resolveCustomEmoji } from "../masto/toot.js";
-import { Divider } from "@suid/material";
+import { Divider, IconButton } from "@suid/material";
 import cardStyle from "../material/cards.module.css";
 import Button from "../material/Button.js";
 import MediaAttachmentGrid from "./MediaAttachmentGrid.js";
 import { FastAverageColor } from "fast-average-color";
 import Color from "colorjs.io";
 import { useDateFnLocale } from "../platform/i18n";
+import { canShare, share } from "../platform/share";
 
 type TootContentViewProps = {
   source?: string;
@@ -165,13 +167,26 @@ function TootActionGroup<T extends mastodon.v1.Status>(
       >
         {toot().bookmarked ? <Bookmark /> : <BookmarkAddOutlined />}
       </Button>
+      <Show when={canShare({ url: toot().url ?? undefined })}>
+        <Button
+          class={tootStyle.tootAction}
+          aria-label="Share"
+          onClick={async () => {
+            await share({
+              url: toot().url ?? undefined,
+            });
+          }}
+        >
+          <Share />
+        </Button>
+      </Show>
     </div>
   );
 }
 
 function TootAuthorGroup(props: { status: mastodon.v1.Status; now: Date }) {
   const toot = () => props.status;
-  const dateFnLocale = useDateFnLocale()
+  const dateFnLocale = useDateFnLocale();
 
   return (
     <div class={tootStyle.tootAuthorGrp}>
@@ -189,7 +204,9 @@ function TootAuthorGroup(props: { status: mastodon.v1.Status; now: Date }) {
           }}
         />
         <time datetime={toot().createdAt}>
-          {formatRelative(toot().createdAt, props.now, {locale: dateFnLocale()})}
+          {formatRelative(toot().createdAt, props.now, {
+            locale: dateFnLocale(),
+          })}
         </time>
         <span>
           @{toot().account.username}@{new URL(toot().account.url).hostname}