The SEO Writing Assistant currently works best with English, but limited support is available for the following languages:

• SPANISH 
• GERMAN 
• RUSSIAN
• FRENCH 
• ITALIAN 
• PORTUGUESE 
• PORTUGUESE (BRAZIL)
• SWEDISH 
• TURKISH 
• NORWEGIAN 
• HUNGARIAN 
• FINNISH 
• DANISH 
• DUTCH 
• HEBREW 
• ROMANIAN
• JAPANESE

Languages other than the ones listed above can be used at your discretion, but accurate scoring cannot be guaranteed.

At the moment, several features in SWA are limited:

• Readability analysis is available for English, Dutch, Albanian, Turkish, Latvian, Macedonian, Danish, Indonesian, Czech, Swedish, Bulgarian, Romanian, Finnish, Spanish, Italian, German, Croatian, Somali, Bengali, Slovene, Afrikaans, Hungarian, Norwegian, Russian, Portuguese, Ukrainian, Vietnamese, Polish, French, Lithuanian, Slovak, Estonian.
• Rephraser works for all languages supported by OpenAI.
• Tone of Voice check is provided only for English.