emacs-shift-number provides commands shift-number-up to increase and shift-number-down to decrease the number at point.

Font Lock Studio is an interactive debugger for Emacs syntax highlighting rules, also called Font Lock keywords. It can single-step Font Lock keywords -- matchers, highlights, and anchored rules, to see what happens when a buffer is fontified. Breakpoints can be set on or inside rules. When inside a rule, matches are visualized using a palette of background colors. The explainer can describe a rule in plain-text English. Finally, tight integration with Edebug allows stepping into Lisp expressions that are part of the Font Lock keywords.

This package provides a library to encrypt/decrypt a string or file with openssl command.

This package provides a global minor mode that enhances the Emacs built-in project.el library to support keeping projects isolated in named tab groups. This package automates the steps you’d otherwise need to do manually if you wanted to keep the buffers of a project neatly isolated in separate, named tab groups.

Org Cliplink provides a simple command that takes a URL from the clipboard and inserts an Org mode link with a title of a page found by the URL into the current buffer.

This library implements support for some Org mode link types in other major modes. Links can be opened and edited like in Org mode.

emacs-alsamixer provides basic commands to control audio volume via amixer.

The denote-journal package makes it easier to use Denote for journaling. While it is possible to use the generic denote command (and related) to maintain a journal, this package defines extra functionality to streamline the journaling workflow.

This package provides a minor mode for Python that binds useful commands to unprefixed keys, such as j or e, under certain circumstances, and leaves the keys untouched outside of those situations, allowing unprefixed keys to insert their respective characters as expected.

This package provides the ability to use the silver searcher, a code searching tool, sometimes abbreviated to ag. Features include version control system awareness, use of Perl compatible regular expressions, editing the search results directly and searching file names rather than the contents of files.

This package adds support for proselint in Flymake.

This package is a front end for the command-line program djvused from DjVuLibre, see http://djvu.sourceforge.net/.

This package provides a minor mode to emulate the behavior of a Caps Lock key.

This package provides a Company backend for Python.

This package allows icons from all-the-icons.el to be used in dired-mode.

Posframe can pop a posframe at point. A posframe is a child frame displayed within its root window's buffer. Posframe is fast and works well with CJK languages.

This package provides an ESS-like binding to send lines or regions to a REPL from Emacs Lisp buffers.

This library allows creating SVG icons by parsing remote collections whose license are compatibles with Emacs. The default size of an icon is exactly 2x1 characters such that it can be inserted inside a text without disturbing alignment.

Evil is an extensible vi layer for Emacs. It emulates the main features of Vim, and provides facilities for writing custom extensions.

This package provides a cache of metadata about the structure of all your Org files – headings, links and so on..

Org Reveal exports your Org documents to reveal.js presentations. With org-reveal, you can create beautiful presentations with 3D effects from simple but powerful Org contents.

This package provides a Lua language support in lsp-mode client for Emacs.

Liberime is an Emacs dynamic module provide librime bindings.

This package provides a popup offering a preview of a list of candidates on which user-defined dispatch actions can act.