Subtitle Converter

6 formats — 30conversion pairs — free, no signup

About Subtitle Converter Formats

Subtitle and caption formats are text-based files that synchronize dialogue and narration with video playback. SRT (SubRip Text) is the most widely used subtitle format — a simple plain text format with sequential numbered entries, timestamps, and the corresponding text. It is supported by virtually every video player and platform. VTT (WebVTT) is the web standard for subtitles, designed for HTML5 video and used by YouTube, Netflix, and most streaming platforms — it extends SRT with additional features like text positioning, styling, and cue metadata. ASS/SSA (Advanced SubStation Alpha) is a feature-rich format used in anime fansubs, supporting complex formatting, colors, fonts, and motion effects. Converting subtitle formats is essential for making video content compatible with different players and platforms, adding captions to videos for accessibility compliance, distributing subtitles with films and series across regions, and integrating subtitles into video editing workflows. Our subtitle converter handles all common formats with accurate timing preservation.

Popular Subtitle Converter Conversions

All Supported Subtitle Converter Formats

.SRT.ASS.SSA.VTT.SUB.JSON

All Subtitle Converter Conversions

30 conversion pairs available

From .JSON

Frequently Asked Questions

What subtitle format should I use for YouTube?

YouTube supports SRT, VTT, SBV, and several other formats. VTT is the native web standard and preferred by YouTube and most modern platforms. SRT is also widely accepted and works reliably. Both formats support basic timing and text — for YouTube uploads, either works fine.

What is the difference between subtitles and closed captions?

Subtitles translate spoken dialogue for audiences who do not speak the language. Closed captions (CC) are designed for deaf or hard-of-hearing viewers — they include all spoken words plus non-speech audio cues like [music playing] or [door slams]. Both use the same file formats (SRT, VTT) but differ in content.

Can I convert ASS subtitles to SRT?

Yes, but with limitations. ASS supports rich formatting (colors, fonts, positioning) that SRT cannot represent. When converting ASS to SRT, the timing and text content are preserved, but all advanced styling and positioning information is lost. This is fine if you only need the dialogue text synced to the video.

How do I add subtitles to a video permanently?

To permanently embed (hard-code or burn-in) subtitles into a video file, you need a video editing tool or FFmpeg rather than a subtitle converter. A subtitle converter changes the subtitle file format only — it does not embed subtitles into video files.

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