Welcome to sig.codes! This is a gallery of signature codes or “geek codes”, a fad in the 1990s and 2000s to self-identify in a group by concocting a brief code, often placed in a newsgroup or email signature via a “.sig file”. (These are not to be confused with the Latin-based sig codes used in pharmacies for prescriptions.)

B4 s- m g++ w d+c t+ f+ k+ r e+(+?)

Starting with the NBCS (Natural Bears Classification System) in 1989/1990, signature codes spread across various groups, with the most popular and prominent being the Geek Code (“The Code of the Geeks”) in 1993. As time progressed, many other fandoms and groups produced their own codes. Though some of these codes are lost to history, others have specifications still online or preserved through archive.org. Wikipedia lists these as “Internet self-classification codes”, but colloquially most are known as “fan codes” or “geek codes”.

For more information and history, see the about page.

Adult codes are marked with 🔞. Codes that are missing specifications are marked with 🔍. If you know anything about those codes, please get in touch.

This collection contains 155 codes.

• Acorn Code (AcornCode)
• Action Figure Code
• Affinity Code (Fur Affinity Code) 🔍
• AFP Code (alt.fan.pratchett Code)
• AFW Geek Code (alt.fan.wedge Geek Code)
• AGHL Code (alt.games.half-life Code)
• Alternative Bear Code (Joshua's Bear Code, JBC)
• AmNin Code (alt.music.nin Code)
• Angband Code
• Animaniacs Code
• APhiO Code
• Archers Geek Code (UMRA Geek Code, uk.media.radio.archers Geek Code)
• ArM Code (Ars Magica Code)
• Atheist Code 🔍
• Attrition Code
• Australian Politics Code (AusPWW Code)
• AutCode
• Autism Spectrum Code
• BARGE Geek Code
• Bear Code (NBCS, Natural Bear Classification System)
• BikeCode
• Blogger Code
• Board Game Geek Code 2005
• Board Game Geek Code 2023
• Bob Code
• BodMod Code
• Body Codes
• Brit Code
• Buffy Geek Code (BTVS Code)
• Butch Code
• C-ADD Code (Creatures Addicts Code)
• Cantab Code
• Cat Code
• Catholic Geek Code
• Childfree Geek Code (CF Geek Code)
• Code Code
• Comic Geek Code (The Code of the Comic Geeks)
• CoSy Code
• Critter Code
• Dakka Code
• dd Geek Code (amd-d Geek Code, alt.music.duran-duran Geek Code, Duran Duran Geek Code)
• Demo Scene Code (demoscene.code, Scene Code, SCENECODE)
• Disney Afternoon Signature Code (DA Code)
• Doctor Who Geek Code
• Dragon Code
• Dragonball Z Otakode (DBZ Code, Dragonball Z Code, Dragonsig) 🔍
• DragonHold DragonCode
• Dragonlance Code (DL Code)
• Dresden Files Geek Code (DV Geek Code, Dresdenverse Geek Code)
• Due South Fan Code
• Faanish Code 🔍
• Faerie Code
• Faith Identification Code 🔍
• Floyd Code (Pink Floyd Code)
• Frugal Geek Code (Frugal Code)
• Fruitbat Code (The 'BatCode)
• Furry Code (The Code of the Furries)
• Futurama Geek Code
• Geek Code (The Code of the Geeks)
• Geek Code Weapons Extensions
• Good Eats Geek Code
• Goth Code
• Grrl Code (Womyn's Grrl Code)
• Gryphon Code
• H2G2 Researcher Code
• Hacker Code
• Halfbakery Geek Code
• Hamster Code
• Harry Potter Geek Code
• Homeschool Geek Code (Homeschoolers "Geek" Code)
• Inflation Code 🔞🔍
• Juggling Code
• Knitter's Geek Code
• LEGO Code (rec.toys.lego Geek Code, Lego Geek Code, LGC)
• Linguist's Geek Code 🔍
• Lion King Code (The Lion King Code, TLK Code)
• Mac Code
• Magic Code
• Marching Band Signature Code
• Meta Geek Code
• Mighty Ducks Code
• Moonie Code (Sailor Moon Code)
• MTBer Code
• Muffdiva Index (Muffdiva Code)
• My Little Pony Geek Code
• NetHack Code
• Netrek Code
• Nexus Code
• Nibelung Code (Der Kodex des Nibelungen)
• OGRE Geek Code
• OmniCode
• Orion's Arm Geek Code
• Otaku Code
• OTP Code (Ordo Templi Paisleianum Code)
• Pearce Code 🔞
• Perl Geek Code
• Personal Growth Geek Code
• Pig Code
• Plush Code 🔞
• Pokémon Fan Code 🔍
• Power Rangers Fan Code
• PuritanBoard Geek Code
• R.E.M. Code (remf code)
• Ranger Code (Rescue Ranger Code, Chip 'n Dale's Rescue Rangers Code)
• Rat Code
• RGMW Geek Code (rec.games.miniatures.warhammer Geek Code)
• Rivetcode (Industrial Code)
• RLDev Code (RL Developer Code, Roguelike Development Geek Code)
• Rockapella Geek Code
• Saturn Geek Code
• Scout Code
• Seinfeld Geek Code 🔍
• Serial Killer Geek Code
• Sex Code (Powell) 🔞
• Sex Code (Psyche) 🔞
• SF2 Code (Street Fighter II Code)
• Shawn Code
• Simpsons Code
• Ska!Code (Ska Code) 🔍
• Skatefan Geek Code (rec.sport.skating.ice.figure Code)
• Slayerette Code
• Smoker's Geek Code
• Smurf Code (SmurfCODE(TM))
• soc.bi code (Bisexual Code, Soc.Bi C*b*l Tove code)
• Sondheim Code
• Space Geek Code (Ghost Planet Code, Space Ghost Code)
• Star Trek Code
• Star Wars D6 Code
• Star Wars Fan Geek Code
• Star Wars Geek Code
• Stephen King Code (a.b.s-k Geek Code, alt.books.stephen-king Geek Code)
• Students Code 🔍
• Swinger Code 🔍
• Teen Geek Code
• Transformers Code (TF Code)
• Traveller Geek Code (IMTU, In My Traveller Universe)
• Twink Code
• U2 Fan Code
• UDIC Code (Ultima Dragons Internet Chapter Code)
• uk.local.yorkshire Geek Code (ULY Geek Code)
• USENET Politics Code (Stross Code)
• Vamp Code
• Vore Code (VORE-CODE) 🔞
• Wallflowers Code (The (w) code)
• Wednesday Code
• Were Code (Blackfang)
• Were Code (SabreLion) (Were Geek Code)
• Were Code (SilverWere)
• Wheel of Time Geek Code (rasfwrj Geek Code)
• Where's George? Code
• Whore Code (Whorecode) 🔞🔍
• XML Geek Code (The Code of the XML Geeks)
• Yiddishkeit Code (Hebrew Geek Code, HGC)
• Yiff Code 🔞🔍
• Zoo Code 🔞