When comparing mIRC vs IRSSI, the Slant community recommends mIRC for most people. In the question“What are the best IRC clients for Windows?” mIRC is ranked 5th while IRSSI is ranked 8th. The most important reason people chose mIRC is:
mIRC interface is uncluttered, easy to overview and use. Additionally, it is highly customizable where fonts, layouts, aliases, popups, etc can be changed and extendable so it can be made to fit any necessities.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Clean interface
mIRC interface is uncluttered, easy to overview and use. Additionally, it is highly customizable where fonts, layouts, aliases, popups, etc can be changed and extendable so it can be made to fit any necessities.
Pro Highly scriptable with an ever-evolving scripting language
Scripts are short programs (sets of instructions) that can be used to automate tasks in mIRC. mIRC has its own scripting language which can be used to perform many different types of tasks, from managing IRC channels to playing multi-user online games.
mIRC scripts can also be used to perform tasks that are not IRC-related, such as managing files on the computer, sending emails, or backing up a web server.
The scripting language is being improved upon and developed further with each release of mIRC.
Pro Functionality can be extended with a vast array of scripts
A vast array of scripts are available on the web.
Pro Almost all actions can be performed via buttons
mIRC offers easy to use graphical solutions for a wide range of different IRC commands and server configurations so it's possible to use either commands or icons based on preference.
Pro Has been in active development for over 20 years
mIRC was created in 1995 by Khaled Mardam-Bey and is still being actively developed.
Pro Free trial
mIRC offers a free 30-day trial.
Pro Stable
Pro Per-server settings
It's possible to create a list of settings and action that perform when connecting to a specific server. All of these things are easy to set up and use.
Pro Very customisible
Pro Crackable if you NOP CRC
Very easy to crack if you know basic Reverse Engineering.
Pro Terminal-based
Screen multiplexing and remote connection options with screen or tmux.
Pro Themes
Allows the modification of IRSSI's look and feel.
Pro Free and open-source
Pro Quick and easy setup
3 or 4 commands and you're ready to chat with all your old friends.
Pro Perl scripting
Allows the user to create and use perl scripts to perform actions.
Pro Command line outputs can be sent to a channel or message
/exec -o figlet "Slant.co"
Pro Easy logging
Pro Persistent connection
Pro Has a plugin for encrypted communications
Cons
Con Not free
mIRC is not free but only a trial for 30 days, after that the user is asked to pay $20 to be able to use the software.
Con No command line solution
Con The developer sucks
You cannot get real support, it's everything 90's style there, a forum that created since 1990 and nothing interesting, also when you request something it gets deleted by the developer or you got ban because the developer doesn't agree with your opinion.
Con Vague information on validity of purchased licenses
Developer only says a license is valid for "several years" and is known to have intentionally voided licenses that were specifically described as lifetime licenses for repeat business.
Con Old bones
It doesn't help when a program has old bones.
Con Developer is acting like Hitler uppon feedbacks and replies
By westor
Con No GUI
Actually a plus for some, lower memory overhead.
Con Gives little direction upfront
Actually, Irssi.org has it's own GREAT documentation for new irssi users. Inline /help options are pretty well documented.