Why not just write "answer in Spanish"?

That works, but it omits register, script, and direction cues. Without them models often produce overly formal or stilted text, mix scripts, or mishandle right-to-left layout. This builder bakes those constraints into a single explicit instruction block.

Does it translate my text?

No. It builds an instruction prompt that tells the LLM how to handle the target language. The actual generation happens in your model. The tool runs entirely in your browser and only outputs prompt text.

What does RTL awareness add?

For languages like Arabic, Hebrew, Farsi, and Urdu, the prompt instructs the model to produce right-to-left text and to keep numerals and embedded Latin terms correctly oriented, which reduces broken bidirectional output.

What is a formality register and why does it matter?

Many languages encode politeness grammatically — French tu/vous, Japanese keigo, German du/Sie. Choosing a register tells the model which pronoun forms and verb endings to use, so the output sounds right for your audience.

Can I use it for translation tasks too?

Yes. Pick the translation task type and the builder adds instructions to preserve meaning, adapt idioms rather than translate them word-for-word, and keep the target language's natural phrasing.

Multilingual Prompt Builder

Multilingual prompt builder

Large language models can work in dozens of languages, but a bare instruction like “reply in German” leaves out the details that make output sound native: the formality register, the script, the text direction, and any cultural conventions. This builder assembles those into a clean instruction block so the model produces natural, audience-appropriate text instead of a literal translation of English thinking.

How it works

You choose a task type, a target language, and a formality register. The tool looks up the language’s native name, its script, and whether it is written left-to-right or right-to-left, then writes an explicit instruction block. For right-to-left languages it adds bidirectional-handling guidance; for languages with grammatical politeness it pins the register; and any cultural notes you add are passed through as constraints. The result is a prompt prefix you paste in front of your own content.

Tips and notes

Be specific in cultural notes. Regional spelling (Brazilian vs. European Portuguese), honorifics, or domain terms all sharpen the output.
Match the register to the audience. Formal for legal or business copy, informal for social or conversational content.
For RTL languages, check embedded Latin. Product names and URLs can flip orientation; the prompt asks the model to keep them readable.
Everything is local. The builder only emits text — nothing is sent anywhere or stored.