TTML Subtitle Translator, AI-Powered & Free
Translate TTML and DFXP subtitle files into 100+ languages with context-aware AI. SubTran keeps your XML timing structure intact for broadcast and streaming.
Your subtitles are processed in memory and never stored on our servers.
Translate other subtitle formats
How to Translate TTML Subtitles Online in 3 Steps
SubTran makes TTML and DFXP subtitle translation simple. Just upload, select a language, and download your perfectly timed captions.
Upload your TTML or DFXP file
Drag and drop your XML subtitle file into SubTran. No software download or installation is needed.
Choose your translation language
Pick from over 100 supported languages, including low-resource options. SubTran uses AI to translate contextually, not word by word.
Download your translated subtitle
Receive your subtitle file in the same format, with all original timing and cues preserved. Ready for broadcast, streaming, or review.
TTML to DFXP Subtitle Converter Features
Timing preserved in XML subtitle translation
SubTran translates only the dialogue, keeping every original timestamp and cue byte-identical for seamless playback.
Context-aware AI for natural translation
Our large language model understands idioms, slang, and tone, delivering fluent subtitles that sound human.
Translate TTML subtitles into 100+ languages
Convert captions in any direction between 100+ languages, including those rarely covered by other tools.
Same format in and out for broadcast workflows
Upload TTML or DFXP files and download the translated version in the same format, ready for OTT, TV, or VOD delivery.
Bilingual export for review and learning
Combine original and translated captions in one file, streamlining localization checks or language learning.
Drag-and-drop, browser-based workflow
No installation or account required to start. Just upload, translate, and download, all in your browser, free.
Why Use an AI Subtitle Translator Online?
Never lose sync in broadcast subtitle translation
Your subtitles stay perfectly aligned with video, with every XML timing marker untouched, ensuring broadcast compliance.
Reach global audiences with multilingual subtitles
Expand your content’s reach by localizing captions in seconds for viewers worldwide, across platforms like Netflix, YouTube, and Disney+.
Private and free to start AI subtitle translation
SubTran processes your subtitle files in memory and does not store them. Translate your first file without creating an account.
Save hours in subtitle localization
Skip tedious manual translation. SubTran completes a full TTML or DFXP file in about a minute.
Natural, readable quality every time
Get context-aware, human-like subtitles that avoid robotic or literal machine translation errors.
Works on any device, in your browser
SubTran is browser-based, so you can translate XML subtitles on any computer or tablet without extra software.
Broadcast Subtitle Translation and More: Use Cases
Broadcast captions for TV and streaming
Translate TTML caption files for TV, OTT, and FAST channels while preserving timing and XML structure.
Streaming platforms and VOD localization
Localize DFXP timed-text tracks for on-demand libraries and streaming workflows with ease.
Localization pipelines for global media
Integrate translated TTML files directly into your packaging workflow to serve multiple markets.
Compliance with accessibility mandates
Provide multilingual closed captions to meet legal accessibility requirements for broadcast and digital content.
Subtitle archives and legacy content
Translate existing DFXP assets for new audiences and repurpose archived subtitle files for international releases.
Agencies delivering fast TTML translations
Quickly turn around professional TTML subtitle translations for clients with broadcast and streaming needs.
TTML File Language Translator FAQ
How to convert TTML to DFXP without losing timing?
SubTran lets you upload TTML or DFXP files and translates only the text, keeping your XML timing structure exactly as in the original file. This ensures no cues are lost or shifted during translation.
Can I translate subtitles for broadcast workflows?
Yes. SubTran is built for broadcasters and streaming engineers. It maintains XML timing and supports TTML and DFXP, making it ideal for broadcast compliance and streaming platforms.
Does AI preserve timing in TTML subtitle translation?
SubTran’s AI translates only the dialogue within your subtitle file. All timing and cue points remain unchanged, so your translated subtitles always stay in sync.
Are TTML and DFXP the same?
DFXP is a profile of TTML (Timed Text Markup Language). Both are XML-based timed-text formats, and SubTran translates the text content of both while preserving timing.
Which subtitle translator supports 100+ languages?
SubTran supports translation between over 100 languages, including many low-resource languages not typically available in subtitle tools.
How to upload and translate TTML subtitles?
Just drag and drop your TTML or DFXP file into SubTran’s web app, select your target language, and download the translated file in seconds.
Is SubTran safe for professional streaming engineers?
Yes. SubTran processes files in memory and never stores them. This approach keeps your broadcast and streaming content private and secure.
Is there a free AI subtitle translator for XML formats?
SubTran offers free AI translation for TTML and DFXP XML subtitle files, making it accessible for broadcasters, localization teams, and agencies.
Start Using the Best Free TTML Subtitle Translator
Translate TTML and DFXP subtitles online with perfect timing. SubTran is private, free to start, and broadcast-ready.