Choose your tone.
Formal, casual or intimate wording to suit the conversation.
繁體中文 ⇄ ภาษาไทย
Say what you mean.
Keep the conversation going.
A question on your travels. A message to someone you care about. Khao Jai focuses on Chinese–Thai translation, with tone and speaking choices that fit the moment.
Download on the App StoreStart free with a 5,000-character allowance.
For iPhone · iOS 16.0 or later
เข้าใจKhao Jai
懂泰
懂泰
Small words. A different feeling.
In Traditional Chinese
請問洗手間在哪裡？
In Thai
ห้องน้ำอยู่ที่ไหนคะ
A polite question with the feminine ending คะ.
In Traditional Chinese
今天累嗎？
In Thai
วันนี้เหนื่อยไหม
Checking in with someone you know.
In Traditional Chinese
謝謝你的幫忙。
In Thai
ขอบคุณที่ช่วยนะครับ
Saying thanks with the masculine ending ครับ.
Prepared examples, not a live translator. Actual translations depend on context.
Two languages.
Room for the little details.
Type in Chinese or Thai. Khao Jai detects the language, and lets you choose how you want to sound to the person you are talking to.
Choose your speaking style.
Masculine or feminine speech options adjust Thai pronouns and endings.
Hold to speak.
Use voice input for a sentence, and report translations that need work.
Try a conversation first.
Start with the free allowance. Choose a subscription when you need more.
Free
Free · NT$0 / ฿0
5,000 characters
A total allowance that does not reset, plus 60 seconds of voice input daily.
Pro
NT$99 / ฿99 per month (฿65 from 2026-10-16)
100,000 characters
Translation allowance per 30 days, for regular conversations.
MAX
NT$155 / ฿155 per month (฿100 from 2026-10-16)
500,000 characters
Translation allowance per 30 days, for more frequent use.
Prices in some regions are adjusted to local price levels; the actual price, and any available offers, are shown on the App Store purchase screen. In Thailand, Pro and MAX monthly drop to ฿65 and ฿100 from 2026-10-16; Taiwan prices are unchanged. Subscriptions renew automatically and can be cancelled in your Apple account subscription settings.
A few things to know.
Do I have to pay first?
No. Start with 5,000 characters in total and 60 seconds of voice input daily. When your text allowance runs out, you can choose to watch an ad to receive 500 more characters of translation quota (text translation only; not available in some regions). Decide whether to subscribe after trying the app. Subscribers see no ads.
Which languages does the app translate?
Khao Jai focuses on Traditional Chinese and Thai in both directions. This website has Chinese, Thai and English introductions; an English website does not mean English translation is supported in the app.
Does it work offline?
Translation and voice input need an internet connection and are processed through our servers. See the privacy policy for details.
Your next conversation starts here.
Different languages. More to say to each other.