diff --git a/Telegram/SourceFiles/core/local_url_handlers.cpp b/Telegram/SourceFiles/core/local_url_handlers.cpp
index e8121204da..d029a9a780 100644
--- a/Telegram/SourceFiles/core/local_url_handlers.cpp
+++ b/Telegram/SourceFiles/core/local_url_handlers.cpp
@@ -644,6 +644,17 @@ bool OpenExternalLink(
 		context);
 }
 
+bool CopyPeerId(
+		Window::SessionController *controller,
+		const Match &match,
+		const QVariant &context) {
+	TextUtilities::SetClipboardText(TextForMimeData{ match->captured(1) });
+	if (controller) {
+		controller->showToast(tr::lng_text_copied(tr::now));
+	}
+	return true;
+}
+
 void ExportTestChatTheme(
 		not_null<Window::SessionController*> controller,
 		not_null<const Data::CloudTheme*> theme) {
@@ -985,6 +996,10 @@ const std::vector<LocalUrlHandler> &InternalUrlHandlers() {
 			u"^url:(.+)$"_q,
 			OpenExternalLink
 		},
+		{
+			u"^copy:(.+)$"_q,
+			CopyPeerId
+		}
 	};
 	return Result;
 }
diff --git a/Telegram/SourceFiles/info/profile/info_profile_values.cpp b/Telegram/SourceFiles/info/profile/info_profile_values.cpp
index 878366d155..198e739756 100644
--- a/Telegram/SourceFiles/info/profile/info_profile_values.cpp
+++ b/Telegram/SourceFiles/info/profile/info_profile_values.cpp
@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "info/profile/info_profile_values.h"
 
+#include "base/options.h"
 #include "info/profile/info_profile_badge.h"
 #include "core/application.h"
 #include "core/click_handler_types.h"
@@ -37,6 +38,12 @@ namespace {
 
 using UpdateFlag = Data::PeerUpdate::Flag;
 
+base::options::toggle ShowPeerIdBelowAbout({
+	.id = kOptionShowPeerIdBelowAbout,
+	.name = "Show Peer IDs in Profile",
+	.description = "Show peer IDs from API below their Bio / Description.",
+});
+
 auto PlainAboutValue(not_null<PeerData*> peer) {
 	return peer->session().changes().peerFlagsValue(
 		peer,
@@ -87,6 +94,8 @@ void StripExternalLinks(TextWithEntities &text) {
 
 } // namespace
 
+const char kOptionShowPeerIdBelowAbout[] = "show-peer-id-below-about";
+
 rpl::producer<QString> NameValue(not_null<PeerData*> peer) {
 	return peer->session().changes().peerFlagsValue(
 		peer,
@@ -209,6 +218,16 @@ TextWithEntities AboutWithEntities(
 	if (stripExternal) {
 		StripExternalLinks(result);
 	}
+	if (ShowPeerIdBelowAbout.value()) {
+		using namespace Ui::Text;
+		if (!result.empty()) {
+			result.append("\n");
+		}
+		result.append(Italic(u"id: "_q));
+		const auto raw = peer->id.value & PeerId::kChatTypeMask;
+		const auto id = QString::number(raw);
+		result.append(Link(Italic(id), "internal:copy:" + id));
+	}
 	return result;
 }
 
diff --git a/Telegram/SourceFiles/info/profile/info_profile_values.h b/Telegram/SourceFiles/info/profile/info_profile_values.h
index b3a110fe41..67c9238fb2 100644
--- a/Telegram/SourceFiles/info/profile/info_profile_values.h
+++ b/Telegram/SourceFiles/info/profile/info_profile_values.h
@@ -35,6 +35,8 @@ enum class SharedMediaType : signed char;
 
 namespace Info::Profile {
 
+extern const char kOptionShowPeerIdBelowAbout[];
+
 inline auto ToSingleLine() {
 	return rpl::map([](const QString &text) {
 		return TextUtilities::SingleLine(text);
diff --git a/Telegram/SourceFiles/settings/settings_experimental.cpp b/Telegram/SourceFiles/settings/settings_experimental.cpp
index 97447adf13..6104cabb13 100644
--- a/Telegram/SourceFiles/settings/settings_experimental.cpp
+++ b/Telegram/SourceFiles/settings/settings_experimental.cpp
@@ -19,6 +19,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/launcher.h"
 #include "chat_helpers/tabbed_panel.h"
 #include "dialogs/dialogs_widget.h"
+#include "info/profile/info_profile_values.h"
 #include "lang/lang_keys.h"
 #include "mainwindow.h"
 #include "media/player/media_player_instance.h"
@@ -141,6 +142,7 @@ void SetupExperimental(
 	addToggle(Dialogs::kOptionForumHideChatsList);
 	addToggle(Core::kOptionFractionalScalingEnabled);
 	addToggle(Window::kOptionViewProfileInChatsListContextMenu);
+	addToggle(Info::Profile::kOptionShowPeerIdBelowAbout);
 	addToggle(Ui::GL::kOptionAllowLinuxNvidiaOpenGL);
 	addToggle(Ui::kOptionUseSmallMsgBubbleRadius);
 	addToggle(Media::Player::kOptionDisableAutoplayNext);