DST translates and edits subtitle files, with support for several translation providers.

syedgakbar.com/projects/dst
DST homepage screenshot

About DST

DST is a web tool for translating and editing subtitle files in SRT, VTT, ASS and SUB formats. It can translate files in bulk into any language using AI models such as GPT, Gemini, Claude, Grok and DeepL, or using Google Translate. The homepage states that timing and formatting stay intact after translation. A built-in editor lets users review and adjust translations before use.

Access is freemium. Google Translate is available at no cost, and most AI models can be tried through free demo trials. Premium AI translation is pay-as-you-go. Signing in is described as giving ad-free use, plan discounts and no payment fees. The number of files that can be translated at once depends on membership tier: 20 for Free, 50 for Basic and 100 for Pro, according to the September 24 update. For privacy, the site states that subtitle files are processed securely and are not used to train public AI models. Anonymous uploads are removed after the session ends, while files from signed-in users are stored for up to 30 days for re-downloading. These are the site's own stated policies, and the entry does not guarantee them.

Key features

  • Translates SRT, VTT, ASS and SUB subtitle files in bulk
  • Keeps subtitle timing and formatting intact after translation
  • Built-in editor for reviewing and fine-tuning translations
  • Choice of AI translators, including GPT, Gemini, Claude, Grok and DeepL
  • Free Google Translate option and free demo trials of AI models
  • Options for managing multiple target languages in one session
Best for: People who need to translate subtitle files into one or more languages and check the results in the same tool.
Good for
  • Timing and formatting are stated to stay intact after translation
  • Google Translate is available at no cost
  • Several translation providers can be selected
Watch out for
  • The Yandex translator is currently disabled because its free widget was deprecated
  • Batch file limits depend on membership tier, with 20 files at once on the Free tier
  • Free AI model access is limited to demo trials, and premium use is pay-as-you-go

DST at a glance

Type
Website
Pricing
Freemium
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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DST FAQ

How many subtitle files can be translated at once?
According to the September 24 update, the limit is 20 files for Free members, 50 for Basic members and 100 for Pro members.
How long are uploaded subtitle files kept?
Anonymous uploads are removed immediately after the session ends. Files from signed-in users are stored for up to 30 days so they can be downloaded again.
Are subtitle files used to train AI models?
The homepage states that subtitle files are processed securely and are never used to train public AI models.
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