We have `read-passwd', which reads a password in the minibuffer, hiding the input. However, modern password input boxes outside Emacs allow to show/hide the input while typing. The appended patch tries to implement this feature. The minibuffer in `read-passwd' has bound TAB to a function, which toggles visibility of the typed input. On graphic displays, the mode-line has an additional indicator for whowing/hiding the typed password. Clicking on this indicator with mouse-1 toggles the password visibility. Comments? Best regards, Michael. In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.39, cairo version 1.18.0) of 2024-01-07 built on gandalf Repository revision: 166b10e9f80dc78147601a87b6425f59860bcfe4 Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12302004 System Description: Fedora Linux 39 (Workstation Edition) Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG LIBOTF LIBSELINUX LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB Important settings: value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8 Major mode: Group Minor modes in effect: gnus-undo-mode: t display-time-mode: t delete-selection-mode: t icomplete-mode: t global-goto-address-mode: t goto-address-mode: t tooltip-mode: t global-eldoc-mode: t show-paren-mode: t electric-indent-mode: t 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