Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'helpline', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
helpline
Transposition0
ehlpline
hlepline
heplline
hellpine
helpilne
helplnie
helplien
Transposition1
lehpline
hpleline
helilpne
helpnile
helpleni
Transposition2
pelhline
hllpeine
heipllne
helnlipe
helpeinl
Transposition2r
plehline
hlpleine
heilplne
helnilpe
helpenil
Transposition0x2
ehplline
ehllpine
ehlpilne
ehlplnie
ehlplien
hlelpine
hlepilne
hleplnie
hleplien
heplilne
hepllnie
hepllien
hellpnie
hellpien
helpilen
Slip3A
elhpline
hlpeline
heplline
hellipne
helpinle
helplnei
Slip3B
lhepline
hpelline
hellpine
heliplne
helpnlie
helplein
Omission
elpline
hlpline
hepline
helline
helpine
helplne
helplie
helplin
Repetition
hhelpline
heelpline
hellpline
helppline
helplline
helpliine
helplinne
helplinee
QWERTY Substitution
gelpline
jelpline
hwlpline
hrlpline
hekpline
heloline
helpkine
helplune
helplone
helplibe
helplime
helplinw
helplinr
QWERTY Repetition after
hgelpline
hjelpline
hewlpline
herlpline
helkpline
helpoline
helplkine
helpliune
helplione
helplinbe
helplinme
helplinew
helpliner
QWERTY Repetition before
ghelpline
jhelpline
hwelpline
hrelpline
heklpline
helopline
helpkline
helpluine
helploine
helplibne
helplimne
helplinwe
helplinre
QWERTY Substitution Transposed
eglpline
glepline
geplline
gellpine
gelpilne
gelplnie
gelplien
ejlpline
jlepline
jeplline
jellpine
jelpilne
jelplnie
jelplien
whlpline
hlwpline
hwplline
hwllpine
hwlpilne
hwlplnie
hwlplien
rhlpline
hlrpline
hrplline
hrllpine
hrlpilne
hrlplnie
hrlplien
ehkpline
hkepline
hepkline
heklpine
hekpilne
hekplnie
hekplien
ehloline
hleoline
heolline
helloine
heloilne
helolnie
helolien
ehlpkine
hlepkine
heplkine
helkpine
helpikne
helpknie
helpkien
ehlplune
hleplune
hepllune
hellpune
helpulne
helplnue
helpluen
ehlplone
hleplone
hepllone
hellpone
helpolne
helplnoe
helploen
ehlplibe
hleplibe
hepllibe
hellpibe
helpilbe
helplbie
helplieb
ehlplime
hleplime
hepllime
hellpime
helpilme
helplmie
helpliem
ehlplinw
hleplinw
hepllinw
hellpinw
helpilnw
helplniw
helpliwn
ehlplinr
hleplinr
hepllinr
hellpinr
helpilnr
helplnir
helplirn
WrongDoubles
$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
$table
$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