SUPPORTED LOCALES
Use the same API contract across 24 languages.
Pass one output locale code with every request. Simple8 detects the source language automatically and writes the result in the selected output language.
{
"text": "Complex source content in the selected language.",
"locale": "en",
"mode": "simple-language"
}SDK and cURL examples available
Locale table
Both public mode values are accepted by the Version 2 API for every locale in this table.
| Code | Native name | English name | Plain Language | Easy Language |
|---|---|---|---|---|
| en | English | English | Supported | Supported |
| de | Deutsch | German | Supported | Supported |
| fr | Français | French | Supported | Supported |
| es | Español | Spanish | Supported | Supported |
| it | Italiano | Italian | Supported | Supported |
| nl | Nederlands | Dutch | Supported | Supported |
| pl | Polski | Polish | Supported | Supported |
| pt | Português | Portuguese | Supported | Supported |
| bg | Български | Bulgarian | Supported | Supported |
| cs | Čeština | Czech | Supported | Supported |
| da | Dansk | Danish | Supported | Supported |
| el | Ελληνικά | Greek | Supported | Supported |
| et | Eesti | Estonian | Supported | Supported |
| fi | Suomi | Finnish | Supported | Supported |
| ga | Gaeilge | Irish | Supported | Supported |
| hr | Hrvatski | Croatian | Supported | Supported |
| hu | Magyar | Hungarian | Supported | Supported |
| lt | Lietuvių | Lithuanian | Supported | Supported |
| lv | Latviešu | Latvian | Supported | Supported |
| mt | Malti | Maltese | Supported | Supported |
| ro | Română | Romanian | Supported | Supported |
| sk | Slovenčina | Slovak | Supported | Supported |
| sl | Slovenščina | Slovenian | Supported | Supported |
| sv | Svenska | Swedish | Supported | Supported |
This technical contract does not replace native-language quality review and locale-specific release approval.
Behavior notes
- Locale codes are lowercase.
- Region variants such as en-GB, de-DE, or pt-BR are not advertised unless the API explicitly supports them.
- The API can translate between languages while creating the selected Plain Language or Easy Language result.
- An unsupported code returns unsupported_locale.
- The marketing-site language selector and API locale list must be generated from one shared source of truth.
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Copy locale list
en,de,fr,es,it,nl,pl,pt,bg,cs,da,el,et,fi,ga,hr,hu,lt,lv,mt,ro,sk,sl,sv