What is the difference between SRT and VTT subtitle formats?

SRT (SubRip) is the most widely supported subtitle format — simple text with timestamps, works everywhere. VTT (WebVTT) is the web standard — supports styling, positioning, and is used natively by HTML5 video players. SRT uses comma in timestamps (00:01:23,456), VTT uses period (00:01:23.456). Both are plain text and easy to edit.

Can I edit subtitles in this tool?

This tool is focused on previewing — it shows how your subtitles look on the actual video. For editing subtitle text and timing, use a dedicated subtitle editor or the SRT Offset Tool (for bulk timestamp adjustments). Preview here after editing to verify your changes look correct.

Subtitle Previewer

Upload a video and SRT/VTT subtitle file to preview subtitles in real-time. Check timing, positioning, and readability before publishing.

🔒 100% Privado — sin subida👁️ Live preview📝 SRT & VTT support

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Arrastra y suelta tu video aquí, o haz clic para buscar

Tamaño máximo: 200 MB

Cómo usar — Subtitle Previewer

Upload your video

Drag and drop any video file (MP4, WebM, MOV, AVI) or click to browse. The video loads locally in your browser.

Add your subtitle file

Upload an SRT or VTT subtitle file. The subtitles are parsed and overlaid on the video player in real-time.

Preview and verify

Play the video to check subtitle timing, positioning, and readability. Fix any issues in your subtitle editor and re-preview.

Preguntas Frecuentes

SRT vs VTT — what is the difference?

SRT is the most widely supported — simple text with timestamps. VTT is the web standard with styling support. SRT uses commas in timestamps (00:01:23,456); VTT uses periods (00:01:23.456). Both are plain text.

How do I check subtitle timing?

Play the video with subtitles overlaid. Watch for: appearing too early/late, staying too long/short, overlapping with scene changes. This tool shows them in real-time for easy verification.

Can I edit subtitles here?

This tool is for previewing, not editing. Use a subtitle editor or the SRT Offset Tool for timing adjustments. Preview here after editing to verify changes.

What character encoding is supported?

UTF-8 — covers virtually all languages including CJK, Arabic, Hindi, and European languages. If characters appear garbled, re-save your file as UTF-8 in a text editor.