This table lists effects you may know by name and the GT modules that "compare to" them.

Guitar Pedals to Rack Effect Modules

Pedal Type Module
ABY switches - numerous Routing ABY
A/DA Flanger (various versions) Flanger Sweeper
Amp Selector (transformer isolated) - various Routing Amp Selector
Analogman Beano Boost Boost Trail Boss
Analogman Comprossor Compressor Boa Constrictor
Analogman Prince of Tone ("half" of King of Tone) Amp Sim Bluesbuster - POT
Analogman Sunface BC108 Fuzz Woodstock 108
Baldwin-Burns Buzzaround Fuzz Fuzzbender III - BBB
Bass Effects Looper, Signal Splitter, GT original design Routing Mudslinger
BBE Green Screamer Overdrive Virago GS
Bearfoot Blueberry Bass Overdrive Amp Sim BeeAll Huckleberry
Bearfoot Honey Bee Overdrive (3-knob) Amp Sim BeeAll Bee's Knees AV1 
Bearfoot Honey Bee Overdrive (4-knob) Amp Sim BeeAll Bee's Knees AV2 
Bearfoot Honey Bair (many versions) Amp Sim BeeAll Bee's Knees AV2 
Bearfoot "Sunshine Girl", others Amp Sim BeeAll Bee's Knees AV2 
Bearfoot Honey Bee Overdrive Plus (6-knob) Amp Sim BeeAll Bee's Knees Deluxe 
Bearfoot Uber Bee Amp Sim BeeAll Queen Bee 
Bearfoot Uber Bee Plus Amp Sim BeeAll Queen Bee Deluxe 
Bearfoot Honey Beest Amp Sim BeeAll Killer Bee 
Bearfoot Honey Beest Plus Amp Sim BeeAll Killer Bee Deluxe 
Bearfoot Silver Bee Amp Sim BeeAll Worker Bee 
Bearfoot Silver Bee Plus Amp Sim BeeAll Worker Bee Deluxe 
Bearfoot Model G Amp Sim BeeAll Hornet AV1 
Bearfoot Dyna Red Distortion (3-knob) Amp Sim BeeAll Wasp AV1
Bearfoot Dyna Red Distortion (4-knob) Amp Sim BeeAll Wasp AV2 
Bearfoot Dyna Red Hot Distortion Amp Sim BeeAll Red Wasp 
Bearfoot Sparkling Yellow Overdrive OD1 Amp Sim BeeAll Yellow Jacket AV1 
Bearfoot Sparkling Yellow Overdrive OD2 Amp Sim BeeAll Yellow Jacket AV2 
Bearfoot Sparkling Yellow Overdrive OD3 Amp Sim BeeAll Yellow Jacket AV3 
Bearfoot Model H v1 Amp Sim BeeAll Bumble Bee AV1 
Bearfoot Model H v2 Amp Sim BeeAll Bumble Bee AV2 
Bearfoot Model HS Amp Sim BeeAll Bumble Bee AV3 
Bixonic Expandora Overdrive Pandora's Box
BJFE Blueberry Bass Overdrive Amp Sim BeeAll Cloudberry 
BJFE Honey Bee Overdrive (3-knob) Amp Sim BeeAll Bee's Knees V1 
BJFE Honey Bee Overdrive (4-knob) Amp Sim BeeAll Bee's Knees V2 
BJFE Model G Amp Sim BeeAll Hornet V1 
BJFE Dyna Red Distortion (3-knob) Amp Sim BeeAll Wasp V1 
BJFE Sparkling Yellow Overdrive OD1 Amp Sim BeeAll Yellow Jacket V1 
BJFE Sparkling Yellow Overdrive OD2 Amp Sim BeeAll Yellow Jacket V2 
Black Arts Toneworks Pharaoh Fuzz Egyptian Pi
Blackout Effectors Musket Fuzz Boosted Pi
Blackstone Appliances Blackstone MOSFET Overdrive Overdrive Obsidian Drive
Blue Magic (J. Nagy) Overdrive Blue Grit
Boss BD-2 Blues Driver Overdrive Blues Booster
Boss BF-2 Flanger Flanger The Prince
Boss CE-2 Chorus Ensemble - many others Chorus VibraChorus
Boss CE-2B Bass Chorus Chorus VibraChorus
Boss DC-2 Dimension C Chorus Chorus Stereo Chorus
Boss DM-2 Delay Delay Analog Delay ADM-2
Boss DM-2W Delay Delay Analog Delay ADM-2W
Boss DM-3 Delay Delay Analog Delay ADM-3
Boss DS-1 Distortion (original) Distortion The Other One
Boss FA-1 FET Amplifier Boost Edge Boost
Boss GE-7 Equalizer Equalizer Tone TwEQer7
Boss GE-7B Bass Equalizer Equalizer Tone TwEQer7 Bass
Boss HM-2 Heavy Metal Distortion Chainsaw
Boss OD-1 OverDrive (original) Overdrive The One
Boss SD-1 Super Over Drive Overdrive Virago SD1
Brian May Treble Boost Boost Queen Boost
Brown Sound In A Box II (Ed Guidry BSIAB II) - many variants Amp Sim 12K68
BYOC Large Beaver (Ram's Head) Fuzz Ram Pi
BYOC Large Beaver (Triangle) Fuzz Woodchuck Pi
Carl Martin Plexitone Amp Sim PlexiSS
Catalinbread Epoch Pre Boost FBomb
Cesar Diaz Square Face (germanium) Fuzz Woodstock TSF Ge
Cesar Diaz Square Face (silicon) Fuzz Woodstock TSF Si
Chase Tone Secret Preamp Boost FBomb
Clay Jones Overdrive Overdrive Virago CJOD
ClinchFX EP-Pre Boost FBomb
Craig Anderton Tube Sound Fuzz Overdrive Inversion Drive, Inversion Fuzz
Dallas Rangemaster - many variants Boost Trail Boss
DiceWorks Muff Diver Finale Fuzz Diver Pi
DOD FX56 American Metal Distortion Chainsaw
DOD Overdrive Preamp 250 (first grey version) Distortion RR+
DOD Overdrive Preamp 250 (second and third grey versions) Distortion RR+
DOD Overdrive Preamp 250 (80's yellow version) Distortion RR+
DOD Overdrive Preamp 250 (90's yellow version) Distortion RR+
DOD Overdrive Preamp YJM308 Distortion RR+
Dr Boogie Amp Sim Boogeyman
Dunlop Echoplex Preamp Boost FBomb
Dunlop JH-F1 Fuzz Face Fuzz Woodstock JH-F1
EA Tremolo Tremolo LeoTrem
Earthbound Audio Supercollider Fuzz Nuclear Pi
EarthQuakerDevices Hoof Fuzz Cow Pi
EHX Big Muff Pi v1 Triangle, KR 66#5 Fuzz First Pi
EHX Big Muff Pi v1 Triangle, KR 66#5b Fuzz Delta Pi
EHX Big Muff Pi v1 Triangle, KR 66#8 Fuzz V1 3uF Pi
EHX Big Muff Pi v1 Triangle, KR 72#1 Fuzz V1 72 Pi
EHX Big Muff Pi v1 Triangle, KR 66#6 Fuzz Beast Pi
EHX Big Muff Pi v1 Triangle, KR 72#2 Fuzz Clone Pi
EHX Big Muff Pi v1 Triangle, KR 67#1 Fuzz Fox Pi
EHX Big Muff Pi v1 Triangle, KR 66#11 Fuzz Green Pi
EHX Big Muff Pi v2, KR 47 Fuzz V2 47 Pi
EHX Big Muff Pi v2, KR 73 Fuzz V2 73 Pi
EHX Big Muff Pi v2, KR hand drawn 1975 Fuzz v2 75 Pi
EHX Big Muff Pi v2, KR 75#1 Fuzz V2 751 Pi
EHX Big Muff Pi v2, KR 76#1 Fuzz V2 76 Pi
EHX Big Muff Pi v2, KR Violet v1 Fuzz Violet Pi
EHX Big Muff Pi v2, KR Violet v2 Fuzz Purple Pi
EHX Big Muff Pi v2, KR Box Cap Fuzz Box Pi
EHX Big Muff Pi v2, KR White Can Fuzz White Pi
EHX Big Muff Pi v3, KR 76#3 Fuzz Red Pi
EHX Big Muff Pi v3, KR 79#2 Fuzz Black Pi
EHX Big Muff Pi op amp versions Fuzz IC Pi
EHX Big Muff Pi v6 Tone Bypass, KR Tone Bypass Fuzz ByeBye Pi
EHX Big Muff Pi v9 Fuzz American Pi
EHX Deluxe Memory Man Delay Analog Delay AD-DMM
EHX Deluxe Memory Man XO Delay Analog Delay AD-XO
EHX Deluxe Electric Mistress (multiple versions) Flanger Ms Pinky Deluxe
EHX Electric Mistress (multiple versions) Flanger Ms Pinky
EHX Hog's Foot Boost Bass Boost
EHX LPB-1, LPB-2` Boost Sonic Boom
EHX Mole Boost Bass Boost
EHX Q-Tron (multiple versions) Envelope / Filter Funkbox
EHX Screaming Bird Boost Shrieking Gull
EHX Small Clone Chorus Small Chorus
EHX Small Stone Phaser Little Rock
Elk Big Muff Sustainar Fuzz Elk Pi
Emma Electronic ReezaFRATzitz Overdrive Inversion Drive, Inversion Fuzz
Fender Blender (original) Fuzz FuzzMixer
FoxRox Aquavibe Phaser SwirlOVibe
Fulltone '69 Fuzz Woodstock Ge 69
Fulltone '70 Fuzz Woodstock Si 70
Fulltone Fulldrive 1 Overdrive Virago FD1
Fulltone Fulldrive 2 Overdrive Virago FD2
Fulltone Fulldrive 2 MOSFET Overdrive Virago FD2M
Fulltone OCD (multiple versions) Overdrive Neurotic Drive
Fulltone Robin Trower Overdrive Overdrive Virago RTO
Fulltone Soul-Bender (original) Fuzz Fuzzbender III - SB
Fuzz Face - original, numerous variants (germanium) Fuzz Woodstock Ge
Fuzz Face - original, numerous variants (silicon) Fuzz Woodstock Si
Fuzz Face - Jimi Hendrix mods Fuzz Woodstock Jimi
GT original Filler Filler Module
GT original Routing Amp Pass Thru
GT original Routing Guitar Pass Thru
GT original Routing In/Out Pass Thru
GT original Routing Mudslinger
GT Customized EHX Deluxe Memory Man Delay Analog Delay AD-4005
GT original fuzz (germanium) Fuzz Woodstock GT Ge
GT original fuzz (silicon) Fuzz Woodstock GT Si
GT original fuzz/overdrive Overdrive Inversion Drive, Inversion Fuzz
GT original power module Power 18V Power
GT original power module Power Warthog
GT original reverb - digital Reverb Digital Reverb
GT original reverb - tube, spring Reverb Tube Reverb
GT original switching Switching Switch +
GT original switching Switching Switch X
GT original switching Switching Rack Switch DIN
GT original switching Switching Rack Switch VGA
Guild Foxey Lady Fuzz Vixen Pi
HAZ Mu-tron III+ Envelope / Filter Funkbox
Hohner Tri-Dirty Booster Fuzz Dirt Pi
Hornby-Skewes Shatterbox Fuzz ZonkBox Marc II
Hornby-Skewes Zonk Machine Fuzz Fuzzbender I-Z
Ibanez AD-80 Analog Delay Delay Analog Delay AD-80
Ibanez AD-9 Analog Delay Delay Analog Delay AD-9A, Analog Delay AD-9B
Ibanez AD-900 Analog Delay Delay Analog Delay AD-900
Ibanez AD-99 Analog Delay Delay Analog Delay AD-99
Ibanez CD-10 Delay Champ Delay Analog Delay AD-10
Ibanez Chorus CS-505 Chorus VibraChorus CS-505
Ibanez OD-850 v1 and v2 Fuzz OD-850 Pi
Ibanez OD-850 v3 Fuzz OD-9 Pi
Ibanez OD-855 v1 "Flying Fingers" Distortion OD-II
Ibanez OD-855 v2 and v3 Overdrive GT-855
Ibanez OD-9 (original) Fuzz OD-9 Pi
Ibanez TS-808 Tube Screamer Overdrive Virago TS-808
Ibanez TS-9 Tube Screamer Overdrive Virago TS-9
Ibanez Tube Screamer buffer Buffer MultiBuffer - T
Ibanez Tube Screamer (for bass) Overdrive Virago Bass
Ibanez Tube Screamer (MOSFET) Overdrive Virago MOSFET
Jack Orman Son of Screamer Overdrive Virago SOS
JHS @ Andy Timmons Amp Sim Bluesbuster - AT, Bluesbuster - AA
JHS Angry Charlie Amp Sim Bluesbuster - AC
JHS Charlie Brown Amp Sim GTM-45 CB
JHS Morning Glory Amp Sim Bluesbuster - MG
JHS Ruby Red Amp Sim Ruby Drive
JHS Superbolt Amp Sim Ruby Drive
Joe Gagan Easy Face Fuzz Woodstock Si/Ge
Jordan Boss Tone Fuzz Honcho
Jordan Creator Fuzz Creator Pi
Keeley Compressor Compressor Boa Constrictor
Keeley Java Boost Boost Trail Boss, Crema Boost
Keeley Katana Boost Sabre
Klon Centaur Overdrive Unicorn
Klon Centaur buffer Buffer MultiBuffer - K
Landgraff Dynamic Overdrive Overdrive Virago - CJOD
looper pedal - numerous Routing Bypass Looper
Love Pedal Eternity (original) Overdrive Virago Forever
Love Pedal Eternity (black) Overdrive Virago Black
Love Pedal Eternity (burst) Overdrive Virago Burst
Love Pedal Eternity (Kanji) Overdrive Virago Kanji
Love Pedal Kalamazoo Overdrive Virago Zoo
Love Pedal Zendrive Amp Sim Bodhi Drive
Mad Professor Blueberry Bass Overdrive Amp Sim BeeAll Elderberry
Mad Professor Deep Blue Delay Delay Digital Delay - Ocean Blue
Mad Professor Fire Red Fuzz Fuzz Fire Pi
Mad Professor Little Green Wonder Overdrive Green Light
Maestro MP-1 Phaser Phaser Virtuoso Phaser
Maestro FZ-1 Fuzz Fuzzifaction 1
Maestro FZ-1A Fuzz Fuzzifaction 1A
Marshall Bluesbreaker (original v1) Amp Sim Bluesbuster - V1
Marshall Bluesbreaker (original v2) Amp Sim Bluesbuster - V2
Marshall Drive Master Amp Sim Bluesbuster - DM
Marshall Guv'nor (original) Amp Sim Prime Minister
Marshall Shred Master Amp Sim Ripper
Marshall SupaFuzz Fuzz Fuzzbender II Supa
Maxon DS-830 Distortion Master Overdrive GT-830
Maxon Insta-Chorus CS-505 Chorus VibraChorus CS-505
Maxon OD-801 D&S Fuzz OD-850 Pi
Maxon OD-802 D&S II Overdrive GT-855
Maxon OD-820 Overdrive Pro Overdrive GT-820
Maxon VOP-9 Vintage Overdrive Overdrive GT-820
MI Audio Crunch Box Amp Sim Bluesbuster - CB
MI Audio Super Crunch Box Amp Sim Bluesbuster - CB
Mixer - various Routing Mixer
MJM London Fuzz Fuzz Woodstock MJM
MojoHandFX Colossus Fuzz Colossal Pi
MojoHandFX Iron Bell Fuzz Piglet Pi
Monacor Effectmatic Envelope / Filter Funkbox
Moosapotamus Tube Steak Fuzz Overdrive Inversion Drive, Inversion Fuzz
MOSFET buffer - various Buffer MultiBuffer - M
MuFX Mu-Tron II Envelope / Filter Funkbox
MuFX Tru-Tron 3X Envelope / Filter Funkbox
Musitronics Dan Armstrong Orange Squeezer Compressor Sultan of Squeeze
Musitronics Mu-Tron III Envelope / Filter Funkbox
Musitronics Mutron Phasor II Phaser OptiPhase
MXR-117 Flanger Flanger FL-117
MXR Distortion + (block and script) Distortion RR+
MXR Distortion II Distortion D-II
MXR Dyna Comp Compressor Boa Constrictor
MXR Echoplex Preamp Boost FBomb
MXR Phase 90 (block and script) Phaser GT-90
Nobels ODR-1 Amp Sim Teledrive
order of effects switch - various Routing Swapper
Park Fuzz Sound Fuzz Fuzzbender III - PFS
Paul Cochrane Timmy Amp Sim Timhi
Pearl CH-02 Chorus Chorus Black Pearl
Pete Cornish Buffer Buffer BritBuffer
Pete Cornish G-2 Fuzz British Pi
Pete Cornish SS-2 Distortion SS+
Prescription Electronics Yardbox Fuzz Fuzzbender III-YB
ProCo Rat (original) Distortion Ben
ProCo Rat II Distortion Ben 2
ProCo Turbo Rat Distortion Turbo Ben
ProCo Vintage Rat Distortion Vintage Ben
ProCo You Dirty Rat Distortion Dirty Ben
PT2399-based digital delays, various models Delay Digital Delay
Realistic Electronic Reverb 32-1110 Reverb Ratverb
Roger Mayer Axis Fuzz Fuzz Starship Fuzz
Roger Mayer Octavia Fuzz Fuzztavia
Roland SDD-320 Dimension D rack chorus Chorus Stereo Chorus
Ross Compressor - many others Compressor Boa Constrictor
Schaffer-Vega Diversity System Boost Angus
Selmer Buzztone Overdrive Barrettone
Shin Ei SuperFuzz Fuzz Shiney Fuzz
Skreddy Lunar Module Fuzz Fuzzball
Skreddy Mayo Fuzz Pink Pi
Skreddy P19 Fuzz Pork Pi
Skreddy Screwdriver Fuzz Highball
Skreddy Top Fuel (early) Fuzz JP4 Pi
Skreddy Top Fuel (later) Fuzz Nitro Pi
Skullytone Russian Spy Fuzz KGB Pi
Sola/Colorsound Jumbo Tonebender, other variants Fuzz Jumbo Pi
Sola/Colorsound Overdriver Overdrive Color Drive
Sola/Colorsound Power Boost Boost Color Bomb
Sola/Colorsound Supa Tonebender Fuzz Supa Pi
Sola/Colorsound Tonebender Mk I Fuzz Fuzzbender I
Sola/Colorsound Tonebender Mk 1.5 (2 transistors) Fuzz Fuzzbender 1.5
Sola/Colorsound Tonebender Mk II Pro (germanium) Fuzz Fuzzbender II
Sola/Colorsound Tonebender Mk II Pro (silicon) Fuzz Fuzzbender II Si
Sola/Colorsound Tonebender Mk III (germanium) Fuzz Fuzzbender III
Sola/Colorsound Tonebender Mk III (silicon) Fuzz Fuzzbender III Si
Sola/Colorsound Tremolo Tremolo ColorTrem
SoloDallas Storm Boost Angus
Sovtek Big Muff Pi (early "Civil War") Fuzz Army Pi
Sovtek Big Muff Pi (later "Civil War" and "Tall Font") Fuzz Tall Pi
Sovtek Big Muff Pi ("Bubble Font") Fuzz Bubble Pi
Sovtek Big Muff Pi (black, big box) Fuzz Big Black Pi
Sovtek Big Muff Pi (black, small box) Fuzz Petite Black Pi
Sovtek Red Army Overdrive Fuzz Army Pi
Suhr Riot Amp Sim Bluesbuster - SR
Sustain Punch Creamy Dreamer Fuzz Dream Pi
t.c. electronic ND-1 Nova Delay Delay Super Nova
Tone Burner Tonebender Fuzz Fuzzbender III-TB
Tonebender Mk I (Gary Hurst) Fuzz Fuzzbender I-H
Top Tone DG-2 Fuzz Top Pi
Top Tone Light Drive Distortion SS+
Tychobrahe Octavia Fuzz Fuzztavia
Univibe - numerous variants Phaser SwirlOVibe
Univox Funky Filter Envelope / Filter Funkbox
Univox SuperFuzz Fuzz Shiney Fuzz
Univox UniDrive UD-50 Boost MOAB
Vemuram Jan Ray Amp Sim Janhi Drive
Voodoo Lab SuperFuzz Fuzz Honcho
Vox Tonebender Mk III Fuzz Fuzzbender III-V
Vox Treble Booster Boost Treble Boost
Vox V828 Tonebender (2 transistors) Fuzz Fuzzbender 1.5-V
Vox V829 Tonebender (2 transistors) Fuzz Fuzzbender 1.5-V
Wampler Paisley Drive Overdrive Virago PD
Wampler Pinnacle Amp Sim 12K68 - Summit
Wampler Plexi Drive Amp Sim FET Drive
Wampler Triple Wreck Distortion FlatTop
Way Huge Blue Hippo Chorus VibraChorus
Way Huge Red Llama Overdrive Inversion Drive, Inversion Fuzz
Way Huge Saffron Squeeze Compressor Boa Constrictor
Way Huge Swollen Pickle (original) Fuzz Pickled Pi
Xotic EP Boost Boost FBomb
ZVEX Box of Rock Amp Sim GTM-45 BOR
ZVEX Channel 2 Boost Woody
ZVEX Super Hard On (SHO) Boost Woody