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Rhad ac am ddim Subtitle Converter

Convert subtitles between SRT, WebVTT, SBV, LRC, and ASS while preserving timing. Input format is auto-detected. Runs entirely in your browser.

Dim cyfyngiad maint ffeilMae ffeiliau'n aros yn breifatNid oes angen mewngofnodiAm ddim am byth

Gollwng ffeiliau yma, neu cliciwch i bori

SRT, VTT, SBV, LRC, ASS, SSA, TXT dim cyfyngiad maint ffeil

Pori ffeiliau

Subtitle text

Output

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💡 Converts between SRT, WebVTT, SBV (YouTube), LRC (lyrics), and ASS/SSA, preserving timing. The input format is detected automatically. Everything runs in your browser — your captions are never uploaded.

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Convert SRT to VTT Convert VTT to SRT Convert Subtitles for YouTube (SBV)Convert Subtitles to LRC Lyrics Extract Plain Text from Subtitles

Sut Mae'n Gweithio

Different players and platforms want different subtitle formats — YouTube uses SBV, the web uses WebVTT, most video files use SRT. This converts between them while keeping the timing intact.

1
You paste or drop a subtitle file
SRT, VTT, SBV, LRC, or ASS/SSA. The input format is detected automatically — nothing is uploaded.
2
Cues are parsed into a common model
Each caption's start time, end time, and text are extracted, normalising the different timecode styles (commas, dots, centiseconds).
3
It's re-serialised to your target format
The cues are written out in the format you choose, with correct timecodes and structure for that format.
4
Copy or download
Grab the converted captions with the right file extension.

Captions can contain unreleased dialogue or sensitive transcripts. Everything is parsed and converted on your device — your subtitles never leave the browser.