ERC is a powerful, modular, and extensible IRC client for Emacs.

Org-fc is a spaced-repetition system for Emacs' Org mode. It allows you to mark headlines in a file as flashcards, turning pieces of knowledge you want to learn into a question-answer test. These cards are reviewed at regular interval. After each review, the next review interval is calculated based on how well you remembered the contents of the card.

highlight-numbers-mode provides a minor mode for syntax highlighting of numeric literals in source code.

It s customizable: it's easy to add or redefine what exactly constitutes a "number" in given major mode. See highlight-numbers-modelist.

This package provides an Elisp wrapper around the Java keytool command and major mode for viewing Java keystores.

Emacs is capable of highlighting buffers based on language-specific font-lock rules. This package makes it possible to perform regression test for packages that provide font-lock rules.

This package enforces a sneaky garbage collector (GC) strategy to minimize GC interference with the activity. During normal use a high GC threshold is set. When idling GC is immediately triggered and a low threshold is set.

This package provides functions which enhance the default behavior of Emacs' Auto Fill mode and the commands fill-paragraph, lisp-fill-paragraph, fill-region-as-paragraph, and fill-region.

The chief improvement is that the beginning of a line to be filled is examined and, based on information gathered, an appropriate value for fill-prefix is constructed. Also the boundaries of the current paragraph are located. This occurs only if the fill prefix is not already non-nil.

The net result of this is that blurbs of text that are offset from left margin by asterisks, dashes, and/or spaces, numbered examples, included text from USENET news articles, etc. are generally filled correctly with no fuss.

An Emacs version of Chris Kempson's "Tomorrow" themes, with much more extensive face definitions than the "official" Emacs variant.

Enhances Dired and buffers visiting annex files with git-annex functionality. In Dired, the names of annex files are shortened by hiding the symbolic links and fontified based on whether content is present. Commands for performing some common operations (e.g., unlocking and adding files) are provided.

This package provides a group of backends permitting auto-completion for AUCTeX.

Orgalist writes and manages Org mode's plain lists in non-Org buffers. More specifically, it supports the syntax of Org mode for numbered, unnumbered, description items, checkboxes, and counter cookies.

The library also implements radio lists, i.e., lists written in Org syntax later translated into the host format, e.g., LaTeX or HTML.

This package provides auto-completion commands for single and multiple lines of code in a project.

This package provides a minor mode for collapsing and expanding regions of text without modifying the actual contents.

This package provides company-mode backends for completing label references and citations in LaTeX. It is based on RefTeX, which is included with Emacs.

The Detached package allows users to run processes detached from Emacs. It provides integration with multiple built-in modes, as well as providing an interface to attach and interact with the processes.

This package contains functions that execute exwm keypresses mapped in firefox to the action described in the function name.

Due to the structure of Lisp syntax it's very rare for the programmer to want to insert characters right before "(" or right after ")". Thus unprefixed printable characters can be used to call commands when the point is at one of these special locations. Lispy provides unprefixed keybindings for S-expression editing when point is at the beginning or end of an S-expression.

Tempel is a tiny template package for Emacs, which uses the syntax of the Emacs Tempo library. You may also write your templates in Lisp.

Mentor is a GNU Emacs frontend for the rTorrent bittorrent client.

By default, it will start and run rTorrent from within Emacs but can also be configured to use an external rTorrent instance over XML-RPC.

This project aims to provide a feature complete and customizable interface, that will feel familiar to Emacs users. Key bindings are chosen to be as close to the vanilla rTorrent curses interface as possible.

This package provides desktop notifications for mu4e. Additionally it can display the number of unread emails in the mode line.

emacs-validate-html installs the command validate-html, which sends the current buffer to the World Wide Web Consortium’s HTML Validator service and displays the results in a buffer in Compilation mode.

Flymake Perlcritic adds support to Flymake for running Perl::Critic to perform static analysis of Perl code.

This package allows editing files as another user, including the root user.

cycle-at-point provides commands to cycle text at the cursor. Repeatedly invoke the command to cycle over available options. Completion candidates are displayed in the echo area. Users can define their own completion lists. Common use cases include true and false literals, arithmetic operators, and months of the year.