- aa
- Afar
- ab
- Abkhaz
- abe
- Western Abnaki
- abs
- Ambonese language
- ace
- Acehnese
- acf
- Saint Lucian Creole French
- ady
- Adyghe
- aeb
- Tunisian Arabic
- af
- Afrikaans
- agq
- Aghem
- ak
- Akan
- akl
- Aklan language
- akz
- Alabama
- aln
- Gheg Albanian
- als
- Tosk Albanian
- am
- Amharic
- an
- Aragonese
- ang
- Old English
- anp
- Angika
- aoc
- Pemon
- ar
- Arabic
- arc
- Imperial Aramaic
- arn
- Mapudungun
- arq
- Algerian Arabic
- ary
- Moroccan Arabic
- arz
- Egyptian Arabic
- as
- Assamese
- ase
- American Sign Language
- ast
- Asturian
- atj
- Atikamekw
- av
- Avaric
- avk
- Kotava
- awa
- Awadhi
- ay
- Aymara
- az
- Azerbaijani
- azb
- South Azerbaijani
- ba
- Bashkir
- ban
- Balinese
- bar
- Bavarian
- bbc
- Toba Batak language
- bcc
- Southern Balochi
- bcl
- Central Bikol
- be
- Belarusian
- be-tarask
- Taraškievica
- bej
- Beja
- bfi
- British Sign Language
- bfq
- Badaga
- bg
- Bulgarian
- bgn
- Western Balochi
- bh
- Bihari languages
- bho
- Bhojpuri
- bi
- Bislama
- bjn
- Banjar
- bm
- Bambara
- bn
- Bengali
- bo
- Tibetan
- bpy
- Bishnupriya Manipuri
- bqi
- Bakhtiari
- br
- Breton
- brh
- Brahui
- bs
- Bosnian language
- bsk
- Burushaski
- bss
- Kose language
- btm
- Mandailing language
- bto
- Rinconada Bikol
- bug
- Buginese
- bxr
- Russia Buriat
- ca
- Catalan
- cdo
- Min Dong
- ce
- Chechen
- ceb
- Cebuano
- ch
- Chamorro
- cho
- Choctaw
- chr
- Cherokee
- chy
- Cheyenne
- ckb
- Central Kurdish
- ckt
- Chukchi
- cnr
- Montenegrin
- co
- Corsican
- cps
- Capiznon
- cr
- Cree
- crh
- Crimean Tatar
- crs
- Seychellois Creole
- cs
- Czech
- csb
- Kashubian
- cu
- Church Slavonic
- cu
- Old Church Slavonic
- cv
- Chuvash
- cy
- Welsh
- da
- Danish
- de
- German
- din
- Dinka
- dsb
- Lower Sorbian
- dtp
- Dusun language
- dty
- Doteli
- dv
- Maldivian
- dz
- Dzongkha
- ee
- Ewe
- egl
- Emilian
- el
- Modern Greek
- en
- English
- eo
- Esperanto
- es
- Spanish
- esu
- Central Alaskan Yup'ik
- et
- Estonian
- eu
- Basque
- ext
- Extremaduran
- fa
- Persian
- ff
- Fula
- fi
- Finnish
- fit
- Meänkieli
- fj
- Fijian
- fkv
- Kven
- fo
- Faroese
- fon
- Fon
- fr
- French
- frc
- Cajun French
- frc
- Louisiana French
- frp
- Franco-Provençal
- frr
- North Frisian
- fur
- Friulian
- fy
- West Frisian
- ga
- Irish
- gaa
- Ga
- gag
- Gagauz
- gan
- Gan
- gcr
- Guianan Creole
- gd
- Scottish Gaelic
- gl
- Galician
- glk
- Gilaki
- gml
- Middle Low German
- gn
- Guarani
- gom
- Goan Konkani
- gor
- Gorontalo
- got
- Gothic
- grc
- Ancient Greek
- gsw
- Alemannic German
- gu
- Gujarati
- gv
- Manx
- ha
- Hausa
- hak
- Hakka
- haw
- Hawaiian
- he
- Hebrew
- hi
- Hindi
- hif
- Fiji Hindi
- hil
- Hiligaynon
- ho
- Hiri Motu
- hr
- Croatian
- hrx
- Riograndenser Hunsrückisch
- hsb
- Upper Sorbian
- ht
- Haitian Creole
- hu
- Hungarian
- hy
- Eastern Armenian
- hyw
- Western Armenian
- hz
- Herero
- ia
- Interlingua
- id
- Indonesian
- ie
- Interlingue
- ig
- Igbo
- ii
- Nuosu language
- ik
- Inupiat
- ilo
- Ilocano
- ine
- Indo-European languages
- inh
- Ingush
- io
- Ido
- is
- Icelandic
- it
- Italian
- iu
- Inuktitut
- ja
- Japanese
- jam
- Jamaican Patois
- jbo
- Lojban
- jut
- Jutlandic
- jv
- Javanese
- ka
- Georgian
- kaa
- Karakalpak
- kab
- Kabyle
- kbd
- Kabardian
- kbp
- Kabiye
- kg
- Kongo
- kha
- Khasi
- khw
- Khowar
- ki
- Gikuyu
- kiu
- Kirmanjki
- kj
- Kwanyama
- kjp
- Eastern Pwo
- kk
- Kazakh
- kl
- Greenlandic
- km
- Khmer
- kn
- Kannada
- ko
- Korean
- koi
- Komi-Permyak
- kr
- Kanuri
- krc
- Karachay-Balkar
- kri
- Krio
- krj
- Kinaray-a language
- krl
- Karelian
- ks
- Kashmiri language
- ksh
- Kölsch dialect
- ksh
- Ripuarian language
- ku
- Kurdish languages
- kum
- Kumyk
- kv
- Komi
- kw
- Cornish
- ky
- Kyrgyz
- la
- Latin
- lad
- Ladino
- lb
- Luxembourgish
- lbe
- Lak
- lez
- Lezgian
- lfn
- Lingua Franca Nova
- lg
- Luganda
- li
- Limburgish
- lij
- Ligurian
- liv
- Livonian
- lki
- Laki
- lkt
- Lakota
- lmo
- Lombard
- ln
- Lingala
- lo
- Lao
- loz
- Lozi
- lrc
- Northern Luri
- lt
- Lithuanian
- ltg
- Latgalian
- lus
- Mizo language
- luz
- Southern Luri
- lv
- Latvian
- lzh
- Classical Chinese
- lzz
- Laz
- mai
- Maithili
- mdf
- Moksha
- mfe
- Mauritian Creole
- mg
- Malagasy
- mh
- Marshallese
- mhr
- Meadow Mari
- mi
- Māori
- min
- Minangkabau
- mk
- Macedonian
- ml
- Malayalam
- mn
- Mongolian
- mni
- Meitei
- mnw
- Mon
- moe
- Innu-aimun
- mr
- Marathi
- mrj
- Hill Mari language
- ms
- Malay
- mt
- Maltese
- mui
- Musi
- mul
- multiple languages
- mus
- Muscogee
- mwl
- Mirandese
- mwv
- Mentawai
- my
- Burmese language
- myv
- Erzya
- mzn
- Mazanderani
- na
- Nauruan
- nah
- Nahuatl
- nan
- Southern Min
- nap
- Neapolitan
- nb
- Bokmål
- nds
- Low German
- ne
- Nepali
- new
- Newari
- ng
- Ndonga
- niu
- Niuean
- nl
- Dutch
- nn
- Nynorsk
- no
- Norwegian
- nod
- Northern Thai
- nog
- Nogai
- nov
- Novial
- nrm
- Narom
- nso
- Northern Sotho
- nv
- Navajo
- ny
- Chewa
- nys
- Noongar
- oc
- Occitan
- olo
- Livvi-Karelian
- om
- Oromo
- or
- Odia
- os
- Ossetian
- ota
- Ottoman Turkish
- pa
- Punjabi
- pag
- Pangasinan
- pam
- Kapampangan
- pap
- Papiamento
- pcd
- Picard
- pdc
- Pennsylvania German
- pdt
- Plautdietsch
- peo
- Old Persian
- pfl
- Palatinate German
- pi
- Pali
- pih
- Pitkern
- pis
- Pijin
- pko
- Pökoot
- pl
- Polish
- pms
- Piedmontese
- pmy
- Papua Malay language
- pnb
- Western Punjabi
- pnt
- Pontic Greek
- prg
- Old Prussian
- ps
- Pashto
- pt
- Portuguese
- qu
- Quechua
- qug
- Chimborazo Highland Quichua
- rcf
- Réunion Creole
- rgn
- Romagnol
- rif
- Riffian
- rm
- Romansh
- rmy
- Vlax Romani language
- rn
- Kirundi
- ro
- Romanian
- ru
- Russian
- rue
- Rusyn
- rup
- Aromanian
- ruq
- Megleno-Romanian
- rw
- Kinyarwanda
- ryu
- Okinawan
- sa
- Sanskrit
- sah
- Sakha
- sat
- Santali
- sc
- Sardinian
- scn
- Sicilian
- sco
- Scots
- sd
- Sindhi
- sdc
- Sassarese
- sdh
- Southern Kurdish
- se
- Northern Sami
- sei
- Seri
- ses
- Koyraboro Senni
- sg
- Sango
- sgs
- Samogitian
- sh
- Serbo-Croatian
- shi
- Shilha
- shn
- Shan
- shy
- Shawiya
- si
- Sinhala
- sid
- Sidamo
- sk
- Slovak
- skr
- Saraiki language
- sl
- Slovene
- sli
- Silesian German
- sm
- Samoan
- sma
- Southern Sami
- sn
- Shona
- so
- Somali
- sou
- Southern Thai
- sq
- Albanian
- sr
- Serbian
- srn
- Sranan tongo
- ss
- Swazi
- st
- Sesotho
- stq
- Saterland Frisian
- sty
- Siberian Tatar
- su
- Sundanese
- sv
- Swedish
- sw
- Swahili
- szl
- Silesian
- szy
- Sakizaya language
- ta
- Tamil
- tay
- Atayal
- tcy
- Tulu
- te
- Telugu
- tet
- Tetum
- tg
- Tajik
- th
- Thai
- ti
- Tigrinya
- tk
- Turkmen
- tl
- Tagalog
- tlh
- Klingon
- tly
- Talysh
- tn
- Tswana
- to
- Tongan
- tpi
- Tok Pisin
- tr
- Turkish
- tru
- Turoyo
- ts
- Tsonga
- tsg
- Tausug
- tt
- Tatar
- tum
- Tumbuka
- tvl
- Tuvaluan language
- tw
- Twi
- ty
- Tahitian
- tyv
- Tuvan
- tzl
- Talossan
- tzm
- Central Atlas Tamazight
- udm
- Udmurt
- ug
- Uyghur
- uk
- Ukrainian
- und
- undetermined language
- ur
- Urdu
- uz
- Uzbek
- uzs
- Southern Uzbek
- ve
- Venda
- vec
- Venetian
- vep
- Veps
- vi
- Vietnamese
- vls
- West Flemish
- vmf
- Main-Franconian
- vo
- Volapük
- vot
- Votic
- vro
- Võro
- wa
- Walloon
- wal
- Wolaytta
- war
- Waray
- wbl
- Wakhi
- wo
- Wolof
- wuu
- Wu Chinese
- wym
- Vilamovian
- xal
- Kalmyk Oirat
- xal
- Oirat
- xh
- Xhosa
- xmf
- Mingrelian
- xsy
- Saisiyat
- yai
- Yaghnobi
- yav
- Yangben
- ydg
- Yidgha
- yi
- Yiddish
- yo
- Yoruba
- yrk
- Nenets
- yrl
- Nheengatu
- yue
- Cantonese
- yue
- Yue Chinese
- za
- Zhuang
- zea
- Zeelandic
- zgh
- Standard Moroccan Berber
- zh
- Chinese
- zu
- Zulu
- zxx
- no linguistic content