Below is a list of usermodes and channelmodes so that you may know which are free and which are not
| Usermode | Name | Type | From |
|---|---|---|---|
| A | Free | ||
| B | Bot Mode | Taken | Source |
| C | Free | ||
| D | PrivDeaf | Taken | Source |
| E | Free | ||
| F | Free | ||
| G | Filter | Taken | Source |
| H | Hide IRCop | Taken | Source |
| I | Hide Idle | Taken | Source |
| J | Free | ||
| K | Free | ||
| L | Free | ||
| M | Free | ||
| N | No Invites | Taken | Source |
| O | Free | ||
| P | PM List | Taken | Third-Party |
| Q | No Kicks | Taken | Source |
| R | Reg Only Msg | Taken | Source |
| S | Services Bot | Taken | Source |
| T | Disable CTCP | Taken | Source |
| U | Free | ||
| V | Free | ||
| W | WHOIS Notify | Taken | Source |
| X | Free | ||
| Y | Free | ||
| Z | Secure Privmsg | Taken | Source |
| a | Free | ||
| b | Free | ||
| c | Msg Common Chans | Taken | Third-Party |
| d | Deaf | Taken | Source |
| e | Free | ||
| f | Free | ||
| g | Free | ||
| h | Helpop | Taken | Third-Party |
| i | Invisible | Taken | Source |
| j | Free | ||
| k | Free | ||
| l | Free | ||
| m | Free | ||
| n | Free | ||
| o | Oper | Taken | Source |
| p | Hide Chans | Taken | Source |
| q | Unkickable | Taken | Source |
| r | Registered Nick | Taken | Source |
| s | Snotices Listen | Taken | Source |
| t | vHost | Taken | Source |
| u | Free | ||
| v | Free | ||
| w | WallOps | Taken | Source |
| x | Hostmask | Taken | Source |
| y | Free | ||
| z | Is Secure | Taken | Source |
| Chanmode | Name | Type | From |
|---|---|---|---|
| A | Free | ||
| B | Block Mass-Highlight | Taken | Third-Party |
| C | No CTCP | Taken | Source |
| D | DelayJoin | Taken | Source |
| E | Free | ||
| F | Flood Profile | Taken | Source |
| G | Spamfilter | Taken | Source |
| H | Chan History | Taken | Source |
| I | Invitation | Taken | Source |
| J | Join Mute | Taken | Third-Party |
| K | No /KNOCK | Taken | Source |
| L | ChanLink | Taken | Source |
| M | RegOnly Can Speak | Taken | Source |
| N | No Nick Changes | Taken | Source |
| O | IRCops Only | Taken | Source |
| P | Permanent | Taken | Source |
| Q | No Kicks | Taken | Source |
| R | Reg Only | Taken | Source |
| S | Strip Colour | Taken | Source |
| T | No Notices | Taken | Source |
| U | Free | ||
| V | No Invites | Taken | Source |
| W | WebIRC only | Taken | Source |
| X | Free | ||
| Y | Operator Join | Taken | Third-Party |
| Z | Is SecureOnly | Taken | Source |
| a | Chan Admin | Taken | Source |
| b | Chan Ban | Taken | Source |
| c | Block Colour | Taken | Source |
| d | DelayJoin | Taken | Source |
| e | Except | Taken | Source |
| f | Flood Mode | Taken | Source |
| g | Helpop Only | Taken | Third-Party |
| h | Halfop | Taken | Source |
| i | Invite | Taken | Source |
| j | Kick Join Delay | Taken | Third-Party |
| k | Key | Taken | Source |
| l | Limit | Taken | Source |
| m | Moderated | Taken | Source |
| n | No External Msg | Taken | Source |
| o | ChanOp | Taken | Source |
| p | Private | Taken | Source |
| q | Owner | Taken | Source |
| r | Registered | Taken | Source |
| s | Secret | Taken | Source |
| t | Only Ops Can /TOPIC | Taken | Source |
| u | Auditorium | Taken | Third-Party |
| v | Voice | Taken | Source |
| w | Free | ||
| x | Reduced Moderation | Free | Third-Party |
| y | Free | ||
| z | Secure Only | Taken | Source |