WebVTT ⇄ SRT Converter

WebVTT (Web Video Text Tracks) is the W3C standard for HTML5 video subtitles, supporting CSS styling, voice tags, cue positioning, and metadata. SRT (SubRip Subtitle) is an older, simpler format with basic text and timing — widely supported by media players, YouTube, and editing software. SRT uses commas in timestamps (00:00:01,000), while WebVTT uses dots (00:00:01.000).

Many video players, older devices, and platforms (like some smart TVs, legacy media players, and certain editing tools) only support SRT. Converting WebVTT to SRT ensures maximum compatibility across all devices and platforms.

Basic formatting tags like <i>, <b>, and <u> are preserved in both directions since both WebVTT and SRT support them. WebVTT-specific tags like <c> (CSS class) and <v> (voice) are stripped, but their inner text content is kept intact.

NOTE blocks, STYLE blocks, and region definitions are WebVTT-specific metadata that have no SRT equivalent. Our converter automatically detects and skips these during WebVTT→SRT conversion. The subtitle cues themselves are extracted cleanly.

Absolutely. All conversion happens entirely in your browser using client-side JavaScript. No files are uploaded to any server. Your subtitle content stays 100% private on your device.

Timestamps are converted with full precision — the only change is the millisecond separator (dot ↔ comma). The actual timing values remain identical. We preserve all decimal places to ensure frame-accurate synchronization.

Yes! Use the direction toggle at the top to switch between WebVTT→SRT and SRT→WebVTT modes. The converter automatically handles the format differences including timestamp notation, headers, and cue numbering.

Since conversion is client-side, there's no hard limit — but very large files (100MB+) may affect browser performance. Typical subtitle files are under 1MB and convert instantly. For extremely large batches, consider splitting files.