Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'smiffy', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
smiffy
Transposition0
msiffy
simffy
smfify
smifyf
Transposition1
imsffy
sfimfy
smffiy
smiyff
Transposition2
fmisfy
sfifmy
smyffi
Transposition2r
fimsfy
sffimy
smyffi
Transposition0x2
msfify
msiffy
msifyf
simffy
simfyf
smfiyf
Slip3A
misffy
sifmfy
smffiy
smifyf
Slip3B
ismffy
sfmify
smfify
smiyff
Omission
miffy
siffy
smffy
smify
smiff
Repetition
ssmiffy
smmiffy
smiiffy
smifffy
smiffyy
QWERTY Substitution
amiffy
dmiffy
sniffy
smuffy
smoffy
smidfy
smigfy
smifdy
smifgy
smifft
smiffu
QWERTY Repetition after
samiffy
sdmiffy
smniffy
smiuffy
smioffy
smifdfy
smifgfy
smiffdy
smiffgy
smiffyt
smiffyu
QWERTY Repetition before
asmiffy
dsmiffy
snmiffy
smuiffy
smoiffy
smidffy
smigffy
smifdfy
smifgfy
smiffty
smiffuy
QWERTY Substitution Transposed
maiffy
aimffy
amfify
amifyf
mdiffy
dimffy
dmfify
dmifyf
nsiffy
sinffy
snfify
snifyf
msuffy
sumffy
smfufy
smufyf
msoffy
somffy
smfofy
smofyf
msidfy
simdfy
smdify
smifdy
smidyf
msigfy
simgfy
smgify
smifgy
smigyf
msifdy
simfdy
smfidy
smidfy
smifyd
msifgy
simfgy
smfigy
smigfy
smifyg
msifft
simfft
smfift
smiftf
msiffu
simffu
smfifu
smifuf
WrongDoubles
smiify
smifyy
$JSON
$address
$applyDefault
$clone
$commas
$copy
$copyFields
$delete
$entries
$expand
$filt
$getType
$isArray
$isBoolean
$isClass
$isDate
$isElement
$isFunction
$isNumber
$isObject
$isString
$isType
$isValidDate
$json2txt
$keys
$load
$matchall
$parseFloats
$pick
$postJSON
$prune
$save
$set
$sortBy
$stringify
$sum
$svgPoster1
$textify
$toFixed
$type
$without
Glossary
Transposition = adjacent pairs of letters are swapped
Omission = individual letters are missed out
Repetition = individual letters are entered twice consecutively
QWERTY substitution = letters are replaced by each of their QWERTY-keyboard based physical neighbours (e.g. 'h' gets replaced with y, u, j, n, b, g)
QWERTY repetition type 1 = letters are followed by each of their QWERTY-keyboard neighbours
QWERTY repetition type 2 = letters are preceded by each of their QWERTY-keyboard neighbours