How accurate is the back-translation check?

It runs a second AI pass translating the result back to the source language so you can visually compare it with your original — useful as a sanity check, not a certified accuracy score.

Can I stop it from translating brand names or code?

Yes — add them to the glossary's do-not-translate list, and enable placeholder/code preservation so tokens like {name} or `code` pass through untouched.

Does it keep my document's formatting?

Turn on the Markdown/HTML/line-break preservation switches and the model is instructed to translate only the text content, leaving tags and structure in place.

Do I need my own API key?

Only once the site's shared key is unavailable — otherwise it's used automatically. Your own key, if you add one, is stored only in your browser and used directly against the provider.

Is my text kept private?

Yes. Nothing you translate is stored on our servers; it's sent only to the AI provider handling the request.

Can I translate a whole list of short lines at once?

Yes — batch mode treats each line as a separate item and returns them in the same order, ideal for UI strings or subtitle files.

ToolMano

AI Translator

Context-aware translation across 60+ languages with a glossary.

No uploadNo signupWorks offline

Text to translate

0 words

Source language

Target language

Formality

Domain

Tone

Side-by-side output

Quick presets

AI key

Add your own API key to use this tool. It is saved only in this browser and the request goes straight from your browser to the provider — it never passes through our server.

Provider

API key

Model (optional)

Get a free keyGenerous free tier — the easiest free key to get.

Paste text to enable Translate.

Your translation will appear here.

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About ai translator

AI Translator translates text between 60+ languages with control over formality, dialect, tone and domain — legal, medical, technical, marketing or casual chat — so the result reads naturally for its context, not just word-for-word correct.

Add a glossary of do-not-translate terms and custom replacements, preserve Markdown, HTML tags, placeholders and emojis, and optionally get transliteration, romanisation, a back-translation check and an explanation of tricky idioms the model had to interpret.

Batch mode translates line by line for spreadsheets or subtitle files, with a side-by-side view of source and translation for quick proofreading.

How to use AI Translator

1Paste the text and choose a source language (or auto-detect) and a target language.
2Open Advanced to set formality, domain, glossary terms and formatting preservation.
3Add your AI key if needed and press Translate.
4Review the side-by-side result, check alternatives or the back-translation, then copy or download.

What it does

Auto-detect plus 60+ target languages with dialect/regional variants
Domain presets: legal, medical, technical, marketing, casual chat and more
Custom glossary: do-not-translate list and forced term replacements
Preserve Markdown, HTML tags, placeholders, emojis and line breaks
Transliteration and romanisation output
Back-translation check to sanity-test accuracy
Up to 3 alternative translations with explanations of tricky phrases
Batch line-by-line mode with side-by-side source/target view

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Also searched as

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