Supported Languages

Index Content Coveo Relevance Cloud Developer System Administrator Product Documentation

In this article

Index Features Support
Machine Learning Features Support
JavaScript Search Framework Support

Coveo can index content written in 57 languages. Coveo Machine Learning (Coveo ML) features and Coveo JavaScript Search Framework user interfaces also support a wide array of languages.

Notes

Coveo can index other language content as long as:
- The language uses spaces to separate words.
- The item encodes characters in Unicode.
For languages meeting these requirements, most language features are supported, except language detection and stemming.
Since result ranking is partially based on summarization and key-concept extraction techniques, English, French, German, and Spanish queries return the most relevant results consistently.

The following sections present the features supported by each language:

Index Features Support

Language Locale Supported index features^[1]

Language	Locale	Supported index features^[1]
English	`en`	All^[2]
French	`fr`	All^[2]
German	`de`	All^[2]
Spanish	`es`	All^[2]
Danish	`da`	All
Dutch	`nl`	All
Finnish	`fi`	All
Hungarian	`hu`	All
Italian	`it`	All
Norwegian	`no`	All
Portuguese	`pt`	All
Swedish	`sv`	All
Turkish	`tr`	All
Catalan	`ca`	All
Romanian	`ro`	All
Valencian	`ca`	All
Armenian	`hy`	All
Russian	`ru`	All
Chinese (traditional and simplified)^[3]	`zh`	All except Stemming
Greek	`el`	All except Stemming
Hindi	`hi`	All
Japanese^[3]	`ja`	All except Stemming
Korean^[3]	`ko`	All except Stemming
Thai	`th`	All except Stemming
Arabic	`ar`	All except Stemming
Basque	`eu`	All except Stemming
Lithuanian	`lt`	All except Stemming
Czech	`cs`	All except Stemming
Indonesian	`id`	All except Stemming
Polish	`pl`	All except Stemming
Albanian	`sq`	All except Stemming
Afrikaans	`af`	All except Stemming
Belarusian	`be`	All except Stemming
Bulgarian	`bg`	All except Stemming
Burmese	`my`	All except Stemming
Croatian	`hr`	All except Stemming
Esperanto	`eo`	All except Stemming
Estonian	`et`	All except Stemming
Filipino	`fil`	All except Stemming
Hebrew	`he`	All except Stemming
Icelandic	`is`	All except Stemming
Kazakh	`kk`	All except Stemming
Latvian	`lv`	All except Stemming
Macedonian	`mk`	All except Stemming
Malay	`ms`	All except Stemming
Moldovan	`ro`	All except Stemming
Mongolian	`mn`	All except Stemming
Norwegian Bokmål	`nb`	All except Stemming
Persian	`fa`	All except Stemming
Serbian	`sr`	All except Stemming
Slovak	`sk`	All except Stemming
Slovenian	`sl`	All except Stemming
Swahili	`sw`	All except Stemming
Tagalog	`tl`	All except Stemming
Ukrainian	`uk`	All except Stemming
Uzbek	`uz`	All except Stemming
Vietnamese	`vi`	All except Stemming and Did you mean

English

en

All^[2]

French

fr

All^[2]

German

de

All^[2]

Spanish

es

All^[2]

Danish

da

All

Dutch

nl

All

Finnish

fi

All

Hungarian

hu

All

Italian

it

All

Norwegian

no

All

Portuguese

pt

All

Swedish

sv

All

Turkish

tr

All

Catalan

ca

All

Romanian

ro

All

Valencian

ca

All

Armenian

hy

All

Russian

ru

All

Chinese (traditional and simplified)^[3]

zh

All except Stemming

Greek

el

All except Stemming

Hindi

hi

All

Japanese^[3]

ja

All except Stemming

Korean^[3]

ko

All except Stemming

Thai

th

All except Stemming

Arabic

ar

All except Stemming

Basque

eu

All except Stemming

Lithuanian

lt

All except Stemming

Czech

cs

All except Stemming

Indonesian

id

All except Stemming

Polish

pl

All except Stemming

Albanian

sq

All except Stemming

Afrikaans

af

All except Stemming

Belarusian

be

All except Stemming

Bulgarian

bg

All except Stemming

Burmese

my

All except Stemming

Croatian

hr

All except Stemming

Esperanto

eo

All except Stemming

Estonian

et

All except Stemming

Filipino

fil

All except Stemming

Hebrew

he

All except Stemming

Icelandic

is

All except Stemming

Kazakh

kk

All except Stemming

Latvian

lv

All except Stemming

Macedonian

mk

All except Stemming

Malay

ms

All except Stemming

Moldovan

ro

All except Stemming

Mongolian

mn

All except Stemming

Norwegian Bokmål

nb

All except Stemming

Persian

fa

All except Stemming

Serbian

sr

All except Stemming

Slovak

sk

All except Stemming

Slovenian

sl

All except Stemming

Swahili

sw

All except Stemming

Tagalog

tl

All except Stemming

Ukrainian

uk

All except Stemming

Uzbek

uz

All except Stemming

Vietnamese

vi

All except Stemming and Did you mean

Machine Learning Features Support

The languages supported by Coveo ML vary depending on the model type.

Available ML models:

Language Locale ART, QS, DNE, and CR PR^[3] Smart Snippets and CC

English

en

French

fr

German

de

Spanish

es

Danish

da

Dutch

nl

Finnish

fi

Hungarian

hu

Italian

it

Norwegian

no

Portuguese

pt

Swedish

sv

Turkish

tr

Catalan

ca

Romanian

ro

Valencian

ca

Armenian

hy

Russian

ru

Chinese (traditional and simplified)

zh

Greek

el

Hindi

hi

Japanese

ja

Korean

ko

Thai

th

Arabic

ar

Basque

eu

Lithuanian

lt

Czech

cs

Indonesian

id

Polish

pl

Albanian

sq

Afrikaans

af

Belarusian

be

Bulgarian

bg

Burmese

my

Croatian

hr

Esperanto

eo

Estonian

et

Filipino

fil

Hebrew

he

Icelandic

is

Kazakh

kk

Latvian

lv

Macedonian

mk

Malay

ms

Moldovan

ro

Mongolian

mn

Norwegian Bokmål

nb

Persian

fa

Serbian

sr

Slovak

sk

Slovenian

sl

Swahili

sw

Tagalog

tl

Ukrainian

uk

Uzbek

uz

Vietnamese

vi

JavaScript Search Framework Support

Language Locale Search UI support

Language	Locale	Search UI support
English	`en`
French	`fr`
German	`de`
Spanish	`es`
Danish	`da`
Dutch	`nl`
Finnish	`fi`
Hungarian	`hu`
Italian	`it`
Norwegian	`no`
Portuguese	`pt`
Swedish	`sv`
Turkish	`tr`
Catalan	`ca`
Romanian	`ro`
Valencian	`ca`
Armenian	`hy`
Russian	`ru`
Chinese (traditional and simplified)	`zh`
Greek	`el`
Hindi	`hi`
Japanese	`ja`
Korean	`ko`
Thai	`th`
Arabic	`ar`
Basque	`eu`
Lithuanian	`lt`
Czech	`cs`
Indonesian	`id`
Polish	`pl`
Albanian	`sq`
Afrikaans	`af`
Belarusian	`be`
Bulgarian	`bg`
Burmese	`my`
Croatian	`hr`
Esperanto	`eo`
Estonian	`et`
Filipino	`fil`
Hebrew	`he`
Icelandic	`is`
Kazakh	`kk`
Latvian	`lv`
Macedonian	`mk`
Malay	`ms`
Moldovan	`ro`
Mongolian	`mn`
Norwegian Bokmål	`nb`
Persian	`fa`
Serbian	`sr`
Slovak	`sk`
Slovenian	`sl`
Swahili	`sw`
Tagalog	`tl`
Ukrainian	`uk`
Uzbek	`uz`
Vietnamese	`vi`

English

en

French

fr

German

de

Spanish

es

Danish

da

Dutch

nl

Finnish

fi

Hungarian

hu

Italian

it

Norwegian

no

Portuguese

pt

Swedish

sv

Turkish

tr

Catalan

ca

Romanian

ro

Valencian

ca

Armenian

hy

Russian

ru

Chinese (traditional and simplified)

zh

Greek

el

Hindi

hi

Japanese

ja

Korean

ko

Thai

th

Arabic

ar

Basque

eu

Lithuanian

lt

Czech

cs

Indonesian

id

Polish

pl

Albanian

sq

Afrikaans

af

Belarusian

be

Bulgarian

bg

Burmese

my

Croatian

hr

Esperanto

eo

Estonian

et

Filipino

fil

Hebrew

he

Icelandic

is

Kazakh

kk

Latvian

lv

Macedonian

mk

Malay

ms

Moldovan

ro

Mongolian

mn

Norwegian Bokmål

nb

Persian

fa

Serbian

sr

Slovak

sk

Slovenian

sl

Swahili

sw

Tagalog

tl

Ukrainian

uk

Uzbek

uz

Vietnamese

vi

1. Encoding, Excerpt, Language detection, Thesaurus, Stemming, and Did you mean.

2. The index can also generate item summaries.

3. A specialized tokenizer based on dictionaries is used to split CJK characters into words, which can impact search results relevancy.

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