> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bibigpt.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Free Online Subtitle Translator

> Translate SRT, VTT, and ASS subtitle files into 15+ languages with AI. Preserves timestamps and uses context-aware translation. Free to use.

## Overview

The free online subtitle translator lets you upload an SRT, VTT, or ASS subtitle file and translate it into 15+ languages while preserving all timecodes. Supports Chinese, English, Japanese, Korean, Spanish, French, German, and more. The AI considers context across lines rather than translating word-by-word, producing natural, fluent subtitles ready to use.

## Pain Point

Launching a video internationally or producing bilingual study subtitles usually means either hand-translating line by line, or using auto-translators that break context and corrupt timing. This tool delivers a one-click translation while keeping every timestamp intact — saving hours from localization to release.

## Key Features

* Supports SRT (SubRip), VTT (WebVTT), ASS/SSA, and plain TXT subtitle formats
* AI translation into 15+ languages: zh / en / ja / ko / es / fr / de / pt / ru / ar / hi / th / vi / id / tr
* Preserves all timecodes and formatting
* Context-aware translation — not literal word-for-word
* Free to use, no sign-up required

## Highlights

Upload, pick a target language, download the translated file — three steps, timestamps untouched. The AI reads surrounding lines for context, producing more natural output for dialogues, technical terms, and slang compared to basic translators. Ideal for batch-translating long videos.

## Use Cases

* **Video localization**: Translate subtitles for YouTube, Bilibili, and TikTok videos to reach global audiences
* **Language learning**: Create bilingual subtitles or translate foreign films to learn vocabulary in context
* **Content creators**: Provide multilingual subtitles for every video and grow a global audience
* **Course translation**: Translate English lectures and online courses into your native language to lower learning barriers
* **Team collaboration**: Share translated subtitles of meetings and product demos with multilingual teams

## Tips

* Use BibiGPT's [subtitle downloader](https://bibigpt.co/features/bilibili-subtitle-downloader) to extract subtitles from videos first, then translate with this tool
* After translation, pair with the [subtitle burner](https://bibigpt.co/features/free-online-subtitle-burner) to hardcode the translated text into your video
* For subtitles with brand names or specialized terms, skim the output and fine-tune a few lines if needed

***

**Related**: [Free Subtitle Burner](https://bibigpt.co/features/free-online-subtitle-burner) — Try it now

**Upgrade to Pro**: Unlock unlimited access → [View Pricing](https://bibigpt.co/pricing)

## Related Features

<CardGroup>
  <Card title="Free Subtitle Burner" href="/en/function-usage/platform-function/free-online-subtitle-burner" />

  <Card title="Free Subtitle Converter" href="/en/function-usage/platform-function/free-online-subtitle-converter" />

  <Card title="Bilibili Subtitle Downloader" href="/en/function-usage/platform-function/bilibili-subtitle-downloader" />
</CardGroup>