Convert Thai voice to text
Thai speech from recordings, voice notes and video — transcribed into real Thai script, with English translation available on Pro.
By Anubhav Jain, Trustample founder · Updated July 2026 · Claims verified against the live product
Free: 60 min per 30 days, files up to 30 min / 50 MB · Paid plans: 10 to 100 hrs, files up to 2 GB. Big video? Upload just its audio track — same transcript, much faster upload.
Encrypted in transit · audio & video auto-delete in 30 days · never used to train AI
Optional settings
Set this for the most accurate result on quiet or mixed audio.
Get a second copy translated into another language (Pro).
Uncommon words the AI might misspell — list them so they come out right.
Thai voice-to-text has been poorly served by mainstream tools, which tend to treat Thai as an afterthought. Trustample transcribes Thai into proper Thai script — not romanization or phonetics — from meetings, interviews, lectures, LINE voice notes and video. Set the spoken language to Thai before uploading; because Thai is written without spaces between words, naming the language explicitly matters more than the auto-detect option here.
An honest word on accuracy before you rely on it: Thai is a harder language for every speech model than English or Spanish. It's tonal, it runs words together without spaces, and there is simply less Thai training data in the world. Expect a solid draft that needs a real editing pass rather than near-perfect output — and test with your own recording on the free plan (60 minutes a month, no card) before you trust it for anything important. We'd rather you check than be surprised.
Need English out of Thai audio? On Pro, tick "Translate transcript to English" and one upload returns both the Thai transcript and an English version you can read against it — the reliable way to turn Thai voice into English text, because you can see and fix the Thai the translation was built from. The free route works too: transcribe the Thai, export the text, and run it through any free translator.
How it works
- 1Set 'Spoken language' to Thai under the upload box.
- 2Upload the recording — meetings, interviews, voice notes, video.
- 3Edit inline (a quick pass matters more in Thai), export, or translate to English on Pro.
Frequently Asked Questions (FAQs)
Is the output real Thai script?
Yes — proper Thai (ภาษาไทย) in Thai script, not romanization or a phonetic spelling. It pastes cleanly into Word and websites, and TXT, DOCX, SRT and VTT all carry Thai correctly. (The built-in PDF export uses a Latin font, so export DOCX and print from Word for Thai PDFs.)
How accurate is Thai transcription, honestly?
Lower than major languages like English or Spanish, and variable with audio quality. Thai's tones, run-together words and thinner training data make it genuinely harder for every AI model today. Clear, close-mic, single-speaker audio does best; expect to correct more than you would in English. Test on the free plan with your own recording before committing — that's exactly what it's there for.
Thai is written without spaces between words — does that cause problems?
The model inserts word boundaries as it goes, and it's usually sensible, but occasional segmentation quirks are the most common thing you'll tidy up. The inline editor makes each fix a quick edit, and corrections carry into every export.
Can I translate Thai voice to English text?
Yes — on Pro it transcribes the Thai, then translates that text to English, keeping both so you can check one against the other. Fix the Thai transcript first: a translation built on a misheard Thai word is an error nobody catches later. Free workaround: export the Thai text and translate it with any free translator.
Can I transcribe LINE voice messages or phone recordings?
Yes — export or save the voice message as an audio file (M4A, OGG and MP3 all work) and upload it. Short notes transcribe in seconds. It works right in your phone's browser, no app to install.
Is there a free Thai voice-to-text option?
Yes — 60 minutes a month, files up to 30 minutes, TXT export, no credit card, the same engine and synced editor paid users get. Given Thai's accuracy is worth verifying, starting free is the sensible way to see how it does on your audio.
An honest note: Thai is one of the harder languages for AI transcription — tonal, written without word spaces, and less-resourced than English or Spanish. Accuracy is genuinely lower and more audio-dependent, so treat the transcript as a strong draft to edit, not a finished document, and test with your own recording on the free plan first.
Related pages
Japanese with kanji output
How Accurate Is It?What moves the number
How to Translate Audio to TextThe two-step workflow
Explore everything in Languages or browse all transcription tools.