Work in every language
like it's your own
Read foreign emails, reply to clients, decode menus and manga across 50+ languages, without ever leaving the app you're in. One hotkey on desktop, your camera on mobile.
or - no credit card or install needed
Free to start · macOS 13+ · Windows 10+ · Android 7+ · v1.6.1
Built for how you actually work
Everything you need, nothing you don't
Reply in their language
Write your reply in English, select it, press ⌘⇧R — TransKey replaces it with a natural translation so you can respond to anyone professionally.
Refine your writing NEW
Wrote a long, rambling draft? Select it, press ⌘⇧I — TransKey rewrites it cleaner, tighter, and easier to read. Same meaning, same language, same register — just better.
Best AI models
Routes automatically through Llama 4, Gemini Flash, Claude, and GPT — always uses the fastest available model for your language pair.
Privacy first
Your text is never stored on our servers. It's processed via our servers and immediately discarded.
Instant hotkey
Highlight any text and press ⌘⇧D (Mac) or Ctrl⇧D (Windows) — translation appears in under a second, right where you are.
Summarize long content
Highlight a lengthy report, email thread, or article in any language and get a concise bullet-point summary in English — in seconds.
Explain any word or phrase
Select an unfamiliar word, idiom, or technical term and press ⌘⇧E — get the definition, natural usage examples, and synonyms in your target language instantly.
Tone per app
Casual in Slack, formal in email, precise in contracts. TransKey adapts the tone to the context automatically.
Industry glossary
Pin your own terms — "NDA", "sprint", "onboarding" — and they'll be translated consistently, your way, every time.
Translation history
Every translation is saved locally on your device — never sent to our servers. Search, star, and copy any past result in one click.
Three steps. That's it.
Highlight any text
Select text in any app — browser, email, Slack, PDF, IDE. Works everywhere on macOS and Windows.
Press the hotkey
Hit ⌘⇧D (Mac) or Ctrl⇧D (Windows). TransKey translates in under a second — no switching apps.
Read or reply
A clean popup shows the translation. Copy it, or use ⌘⇧R to reply back in the sender's language.
See it for yourself
Actual UI — no mock-ups, no staging environment.
Fully customisable
Set your shortcut, language, translation tone — all in one window.
Read foreign news instantly
From Japanese articles to French blogs — translate where you read.
Summarize long articles instantly
Highlight, press the summary hotkey — get the key points in your language, in seconds.
Translate anywhere you go
Point your camera, reply inside any chat, or just speak. TransKey keeps up with you on the move.
Snap and understand
Point your camera at a menu, sign, or page and read it instantly in your language.
What is this?
Long-press any word or dish for its real meaning, cultural context, and examples - far beyond a word-for-word translation.
Reply in any language
Translate and respond right inside Messenger, chat, and social apps.
Ready in under a minute
Download, sign up, and start translating in seconds - on desktop or on the go. Latest: v1.6.1
macOS — Apple Silicon
macOS 13+ · M1 / M2 / M3 / M4
macOS — Intel
macOS 13+ · Intel-based Macs
Windows
Windows 10+ · 64-bit
Android
Android 7+ · Phone, Tablet
Simple, honest pricing
Start free. Upgrade when you need more.
- ✓20 translations / day
- ✓2,000 characters / day
- ✓10-entry glossary
- –Reply translate
- –Refine writing
- –Tone override
- –Summarize
- –Word explanation
- –Romanization
- –Voice (TTS)
- ✓Translate any screen
- –Camera translate (mobile)
No credit card required
- ✓Unlimited translations
- ✓Unlimited characters
- ✓500-entry glossary
- ✓Reply translate
- ✓Refine writing
- ✓Tone override
- ✓Summarize
- ✓Word explanation
- ✓Romanization
- ✓Voice (TTS)
- –Translate any screen
- –Camera translate (mobile)
- ✓Unlimited translations
- ✓Unlimited characters
- ✓500-entry glossary
- ✓Reply translate
- ✓Refine writing
- ✓Tone override
- ✓Summarize
- ✓Word explanation
- ✓Romanization
- ✓Voice (TTS)
- ✓Translate any screen
- ✓Camera translate (mobile)
Common questions
What languages are supported?
TransKey supports 50+ languages including Japanese, Chinese, Korean, German, French, Spanish, Portuguese, Arabic, and many more — any language the underlying AI models support.
How accurate are the translations?
Very accurate for everyday professional use — emails, Slack, reports, and documentation. The underlying models (Llama 4, GPT, Claude, Gemini) produce natural, context-aware output rather than word-for-word literal translations. For legal contracts or certified documents, always have a professional reviewer sign off.
Can I keep my industry terminology consistent?
Yes. The personal glossary lets you pin specific terms — product names, legal phrases, technical jargon — so they are always translated exactly the way you define them, not guessed by the model.
Is it safe to use with confidential documents?
Your text is processed by the AI model and immediately discarded — nothing is stored or logged on our servers. We only track request counts for quota. That said, for highly sensitive documents subject to strict NDA or regulatory requirements, check your organization's policy on third-party AI tools.
What apps does it work in?
TransKey works in any app on macOS and Windows — Gmail, Outlook, Slack, Notion, VS Code, Chrome, PDF viewers, Word, and more. If you can highlight text, TransKey can translate it.
Do I need my own API key?
No. All AI costs are included in your plan. The free tier works immediately after sign-up — no API key, no credit card needed.
What platforms are supported?
TransKey runs on macOS 13 Ventura or later (Intel and Apple Silicon), Windows 10 or later (64-bit), and Android 7 or later (phone and tablet). All platforms are fully supported.
Can I cancel my subscription?
Yes, anytime. You can cancel directly from the app or the billing portal. Access continues until the end of your billing period.
Try it free for 7 days
Full Pro access — every model, every feature. No credit card. Cancel anytime in one click.
- No credit card required
- Cancel anytime
- Auto-downgrades to Free
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