Free tool
English to Thai video translator
This English to Thai video translator gives an English video Thai subtitles: the speech is transcribed and translated, and the Thai is laid out in lines that break where Thai words begin and end, each subtitle shown while its English is spoken.
- Free
- Thai SRT and VTT
- The video stays on your device
Drop your English video here, or Choose your English video
MP4, MOV, M4V, MKV, 3GP or WebM video. Up to 30 minutes of each file, 3 free files a day. Translates English speech into Thai.
Making videos for Thai viewers? NoteOwl transcribes your MP4 videos on your Mac with unlimited transcription and saves SRT subtitles with each speaker’s name.
How it works
How do you add Thai subtitles to an English video?
To translate an English video to Thai, drop it on this page. Its soundtrack is read in your browser, the English words are written down and turned into Thai, and the Thai is cut into subtitles that sit inside each English sentence’s seconds. Then save the Thai SRT.
- 1
Choose the English video
A tutorial, a product film or a talk, as MP4, MOV, MKV or WebM; the picture is never read.
- 2
Wait for the Thai
The first 30 minutes of a video are covered, start to finish in one go.
- 3
Download the .th.srt
VTT too; Original holds an English track with the same timing.
How much room do Thai subtitles take on screen?
About a tenth more than English. Thai uses slightly fewer characters, but a line holds 35 rather than 42, and each subtitle stays until it can be read at 15 characters a second. As the Thai is cut up after translating, its subtitles needn’t pair off with the English.
Where does a Thai subtitle line break?
Where the browser’s Thai word list sees a word end, or at a space between phrases. Words stay whole, but in our check a figure parted from its unit, “ราคาเพิ่มขึ้น 6.5” over “เปอร์เซ็นต์…”, and “มาเรีย” ended one line with “โลเปซ” opening the next.
Both are one-minute fixes in the SRT: move the word to the other line. The times stay as they are.
How do dates, times and prices look in Thai subtitles?
The time follows Thai style, “15:30 น.” on the 24-hour clock, and prices read “6.5 เปอร์เซ็นต์” and “1,250 ดอลลาร์”. The year stayed 2026; Thai viewers often see the Buddhist-era year, 543 more, so 2569, and you may want to change it.
- The price went up by 6.5 percent to $1,250.
- Thai subtitleราคาเพิ่มขึ้น 6.5 เปอร์เซ็นต์ เป็น 1,250 ดอลลาร์
- The meeting is on October 16, 2026, at 3:30 p.m.
- Thai subtitleการประชุมจัดขึ้นในวันที่ 16 ตุลาคม 2026 เวลา 15:30 น.
- Wow! That’s amazing!
- Thai subtitleว้าว! มันน่าทึ่งมาก!
| English | Thai subtitle |
|---|---|
| The price went up by 6.5 percent to $1,250. | ราคาเพิ่มขึ้น 6.5 เปอร์เซ็นต์ เป็น 1,250 ดอลลาร์ |
| The meeting is on October 16, 2026, at 3:30 p.m. | การประชุมจัดขึ้นในวันที่ 16 ตุลาคม 2026 เวลา 15:30 น. |
| Wow! That’s amazing! | ว้าว! มันน่าทึ่งมาก! |
Do the Thai subtitles suit the person on screen?
Check the polite particles. Courteous Thai sentences end in ครับ when a man speaks and ค่ะ when a woman does, and our test used ครับ. If the presenter is a woman, replace ครับ with ค่ะ throughout the SRT so the subtitles match her.
Full stops are left out, as Thai writing does, while ! and ? are kept. Measured on 50 sentences, our Thai translations rated clearly above the dedicated translation system used as a yardstick.
Making videos for Thai viewers?
NoteOwl understands Thai and English among its languages on a Mac. Bring in an MP4 for unlimited transcription and you get SRT subtitles with every speaker named. If English subtitles exist already, the subtitle translator turns them into Thai without touching a timestamp.
FAQ
Thai subtitles for English videos: questions
Is the English to Thai video translator free?
It is: up to 3 videos daily, 30 minutes apiece, with nothing to sign up for and no mark on the picture.
How do I add Thai subtitles on YouTube?
In YouTube Studio, open Subtitles, choose the video, add Thai and upload the .th.srt as a file with timing. Thai then appears among the video’s subtitle languages.
Will Thai tone marks show correctly when burned in?
Yes, with a font that includes Thai. Without one, vowels and tone marks can stack wrongly or show as boxes.
Does it make a Thai voice-over?
No. It makes Thai subtitles and leaves the video’s sound and picture as they were.
Are names written in Thai letters?
Yes, by sound: Maria Lopez became มาเรีย โลเปซ. Check that people and brands are spelled the way your viewers know them.
Is my video uploaded?
No. The picture never leaves your device. Small slices of audio are sent for transcription and the English lines for translation, each to a cloud AI service that drops them once it has answered.
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The same in other tools
Videos for Thai viewers, starting on your Mac
Free to download. Runs entirely on your Mac.
macOS 26 or later · Apple Silicon (M1 or newer) · 16 GB memory minimum, 24 GB recommended
About NoteOwl
NoteOwl is private AI meeting notes and memory for the Mac. It captures meetings without a bot joining the call, labels every speaker, writes summaries and action items, and builds a memory of every conversation that you can chat with — fully offline, because the speech recognition and the AI run on the Mac itself. Dictation into any app is free; Pro is a one-time purchase.
NoteOwl pricing: what’s free and what Pro adds
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