• English

      • Translation Tools

      A free translation suite for developers and content creators, split into three format-specific tools — each optimized for the quirks of its file type:

      • Subtitle Translator — subtitles (SRT / ASS / VTT / LRC), supports bilingual output and time-aligned tracks
      • MD Translator — Markdown that preserves code blocks, LaTeX, and FrontMatter
      • JSON Translate — JSON i18n with selective key translation and key mapping

      Shared Capabilities

      The three tools share one translation engine and settings panel — your config moves between them:

      • Wide API choice: 9 translation APIs + 26 LLM endpoints covering free, commercial, and self-hosted use cases (compare them here)
      • 120+ languages with one-pass multi-language output: translate one English subtitle into Chinese, Japanese, German, and French at once
      • Local cache: cached results return instantly, persist across refreshes, and sync across tabs
      • Context-aware translation: surrounding lines accompany each request, keeping flow and terminology consistent
      • Failed-line retry: when an LLM glitches, only the failed lines are reissued — no double-billing
      • Privacy first: API keys and all settings stay in your browser; nothing is uploaded to a server
      • Command line too: yarn cli runs the exact same pipeline as the web app across subtitles, Markdown and JSON (CLI guide)

      Pick the Right Tool

      Translating…Use
      YouTube / video subtitlesSubtitle Translator
      GitHub READMEs, tech blogsMD Translator
      i18n.json / locale.jsonJSON Translate
      Any plain textMD Translator's Format Mode → "Ignore Formatting"

      Three Steps to Start

      1. Pick a translation API and enter its key (or use the free GTX)
      2. Set your source and target languages
      3. Upload a file or paste text, then click Translate

      For full feature details and tuning, see the Feature Guide.