English ↔ Thai, in your LINE chats

No more copy-pasting into a translator. Add KrubKa to any LINE chat or group — everyone keeps writing their own language, and nobody else installs anything.

Add KrubKa on LINE

@858tccji · free to start, no sign-up needed

QR code that adds KrubKa (@858tccji) as a LINE friend

On a computer? Scan with the LINE app.

LINE group chat where an English message is followed by KrubKa's Thai translation, and a Thai reply is translated back into English

How it works

  1. Add KrubKa

    Add @858tccji as a friend on LINE, then invite it into any chat you already have — with one person or a whole group.

  2. Chat normally

    Everyone types or sends voice messages in their own language. KrubKa translates every message both ways, right in the chat.

  3. Go further with the app

    The KrubKa app connects your LINE account, shows your usage and groups, sets how your Thai sounds, and unlocks Unlimited.

LINE group chat where an English message is followed by KrubKa's Thai translation, and a Thai reply is translated back into English

Works in LINE

Everyone keeps chatting normally

Invite KrubKa into the chat you already have — with your landlord, your partner, your partner's family. No need to make a group first. It translates each message in place, so both sides read and reply in the language they think in. Voice messages are translated too, in beta.

KrubKa chat where a photo of a Thai electricity bill is summarized in English with the amount due and the payment deadline

Photo translation

Send a photo. Understand what matters.

Electricity bill, condo notice, government letter — snap a photo in your private chat with KrubKa and it tells you what it is, how much, and when it's due.

KrubKa app account screen with the Thai sentence-ending toggle set to ครับ (krub)

Managed in the app

Polite Thai that sounds like you

Thai politeness is built in. Pick ครับ (krub) or ค่ะ (ka) in the app and KrubKa ends your translated sentences the way you would say them.

Conversations shown are illustrative test chats.

Made for the everyday stuff

A leaky air conditioner, a package at the gate, dinner plans with your partner's family. KrubKa keeps those conversations moving in the LINE chats you already have — no new app for anyone else, no copy-pasting into a translator.

Pricing

Free

$0

  • 50 translations every month
  • Works in chats with one person and in groups
  • Voice messages translated both ways (beta)
  • Photo translation included
  • A chat nobody has connected gets a one-time 10-translation trial

KrubKa Unlimited

$4.99/month or $39.99/year

  • Unlimited translation in your private chat with KrubKa
  • Every chat you've added KrubKa to is covered for everyone, under fair use
  • Cancel anytime in the App Store or Google Play

Prices in USD. App Store and Google Play pricing may vary by region.

Download on the App Store Get it on Google Play

Frequently asked questions

What is KrubKa?

An AI English ↔ Thai translator that lives inside LINE. Message KrubKa privately (@858tccji), or invite it into any chat you already have — with one person or a group — and it translates every message — typed or voice — in both directions, in polite, natural Thai.

Do my Thai contacts need to install anything?

No. Nobody else in the chat needs the app or an account. They just keep using LINE as they always have.

How much is free?

You get 50 free translations each month, shared between your private chat with KrubKa and the chats you've connected. A chat where nobody has connected KrubKa yet gets a one-time trial of 10 translations.

What does Unlimited cost, and what do I get?

$4.99 per month or $39.99 per year. Your private translation becomes unlimited, and every chat you've added KrubKa to is covered for everyone under a generous fair-use ceiling.

Can it translate photos?

Yes, in your private chat with KrubKa: send a photo of a bill, letter, or sign and KrubKa explains what matters — the amount, the due date, what to do. Photos sent in shared chats are not translated.

Can it translate voice messages?

Yes, in beta, both ways: a Thai voice message comes back in English, an English one in Thai. Send a voice message of up to 5 minutes, in your private chat with KrubKa or in a shared chat, and KrubKa replies with what it heard and the translation. Each voice message counts as one translation.

What is the KrubKa app for?

The bot works without it. The app adds sign-in, connecting your LINE account, seeing your usage and groups, choosing how your Thai sounds (ครับ or ค่ะ), and subscribing to Unlimited.

Can I pause it in a group?

Yes — type /pause in the chat to stop translating and /resume to start again. /krub and /ka switch your polite particle.

What happens to my photos, voice messages and texts?

Photos and voice-message audio are processed in memory and discarded — never stored. Message text, including what KrubKa heard in a voice message, is processed to produce the translation. The privacy policy linked below has the details.

Does it translate other languages?

No — KrubKa does English ↔ Thai only, by design. Doing one language pair well is the whole point.

Add KrubKa on LINE