Translate Subtitle Files Online
Upload one subtitle file or select multiple files for bulk translation. Translate SRT, VTT, SBV, ASS, TTML, SMI and LRC into 100+ languages, preserve every timestamp, and download batch results in one ZIP.
Bulk upload supported · SRT, VTT, SBV, ASS, TTML, SMI and LRC · 0.5 MB per file
Your subtitles are processed securely to generate your translation.
Why use this subtitle translator
The fastest way to translate subtitle files online
SubTran translates one subtitle file or multiple files in bulk across SRT, VTT, SBV, ASS/SSA, TTML/DFXP, SMI and LRC. Choose from 100+ languages, preserve every timestamp and cue number, and download a translated batch in one ZIP. Bilingual mode keeps original and translated text together for learning or review. Nothing to install, and no account is required for the first file.
Features
Why use this subtitle translator
Perfect timing preserved
We translate the dialogue only. Every timestamp, line break, and cue number stays identical to your original file, SRT, VTT, TTML, ASS or any other supported format, so subtitles stay perfectly in sync.
AI translation quality
Our AI subtitle translator is powered by a large language model that understands context, idioms, and natural spoken dialogue, far more readable than the word-by-word output of traditional machine translation.
No sign-up to start
Translate your first subtitle file without creating an account.
100+ languages, any direction
Translate subtitles between 100+ languages including English, Spanish, Chinese, Hindi, Arabic, Portuguese, French, German, Japanese and Korean.
7 subtitle formats supported
Upload SRT, VTT (streaming), SBV (YouTube), ASS/SSA (anime), TTML/DFXP (Netflix & Disney+), SMI (Korean), or LRC files. Download in the same format you uploaded, no manual conversion needed.
Bulk subtitle translation
Select multiple subtitle files, translate the whole batch in one run, and download every result in a single ZIP. Each file keeps its original name and subtitle format.
Who it's for
Who uses this subtitle translator
From a single short film to a full course library, anyone localizing video can translate subtitles online in seconds with this subtitle translator.
Filmmakers & video producers
Localize movie subtitles, shorts, and trailers for international festivals and audiences without paying for a full subtitling service.
YouTubers & creators
Add translated subtitles to grow your channel in new markets and make your videos discoverable in more languages.
Course & e-learning creators
Make lessons, webinars, and tutorials accessible to students worldwide by translating your subtitle files in minutes.
Translators & localization teams
Bulk translate complete subtitle batches into review-ready first drafts, then download one organized ZIP instead of processing files one by one.
Fansubbers & hobbyists
Translate fan subtitles for shows and clips into your language while keeping the original timing exactly intact.
Businesses & marketers
Translate training, product, and marketing video subtitles to reach global teams and customers.
How it works
How the subtitle translator works
- 1
Upload one file or a batch
Select one subtitle or multiple SRT, VTT, SBV, ASS, TTML, SMI or LRC files from your device.
- 2
Pick a target language
Choose from 100+ supported languages in the dropdown.
- 3
Download the result
Download a single translated subtitle in its original format, or download all bulk results in one ZIP. Timing remains identical.
Coverage
Translate subtitles into 100+ languages
Translate from and into any supported language, in any direction, English, Spanish, Chinese, and dozens more, all in one free online subtitle translator:
Translate your first SRT file free
No account needed to start. Upload any subtitle file, SRT, VTT, ASS, TTML and more, and get an accurate translation in seconds. Choose bilingual mode to keep both languages in one file.
Start translating, it's freeFAQ
Frequently asked questions
Is it free?
Your first task is free. After that, buy 10 credits for $1, choose Starter at $4.99/month for 120 credits, or Pro at $9.99/month for 250 credits.
What is an SRT file?
An SRT (SubRip) file is a plain-text subtitle file that pairs each line of dialogue with start and end timestamps. SubTran reads your .srt, translates the dialogue, and rebuilds the file with the timing left untouched.
Will the timing change?
No. Only the spoken text is translated; timestamps and cue numbers are preserved exactly, so your subtitles stay in sync.
Can I translate subtitles into any language?
You can translate from and into any of our 100+ supported languages, in any direction, for example English to Spanish, Chinese to English, or Japanese to French.
Do I need to install software or create an account?
No installation is required. Your first file can be translated without an account; an account is needed only to buy credits or use a subscription.
Can I translate a full-length movie?
Yes. A typical full-length movie subtitle file translates in about a minute. Keep the browser tab open until it finishes.
Do you keep my subtitle files?
Files are processed to produce the translation. For details on how we handle your data, see our Privacy Policy.
Which subtitle formats are supported?
SubTran supports seven formats: SRT (.srt), WebVTT (.vtt), SBV (.sbv), ASS/SSA (.ass/.ssa), TTML/DFXP (.ttml/.dfxp), SMI/SAMI (.smi/.sami), and LRC (.lrc). Your file downloads in the same format you uploaded, no conversion needed.
How much do paid plans cost?
$1 buys 10 credits. Starter is $4.99/month for 120 credits, and Pro is $9.99/month for 250 credits. Starter and Pro include bulk translation, transcription, SRT generation, and ZIP download.
Which languages can I translate into?
100+ languages, including English, Chinese (Simplified & Traditional), Spanish, Hindi, Arabic, Portuguese, Russian, French, German, Japanese, Korean, Italian, Vietnamese, Thai and many more.
How accurate is the translation?
Our AI subtitle translator generates translations with a large language model that understands context and natural dialogue, so results read far better than word-by-word machine translation. Quality is strongest for widely spoken languages.
Can I get bilingual subtitles with both the original and translation?
Yes. Before translating, switch 'Output mode' to 'Bilingual'. Each subtitle cue in the downloaded file will contain the original line followed by its translation, great for language learners, localization review, or dual-language captions.
Can I bulk translate multiple subtitle files?
Yes. Starter and Pro users can select multiple supported subtitle files, translate them sequentially in one run, and download all results in a single ZIP. Each file counts as one translation.