fiokit.

Subtitle Editor and SRT VTT Converter

Convert SRT and WebVTT subtitles, edit cues and shift timestamps to synchronize captions.

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How it works

Paste your content or load the example. Choose the available options, run the tool, then copy or download the result.

A practical example

SRT / WebVTT

1
00:00:01,000 --> 00:00:03,000
Hello world

Frequently asked questions

Is my input sent to a server?

No. Your content is processed in this browser. It is never sent to the server or saved.

What should I know about Subtitle Editor and SRT VTT Converter?

Supports plain cues. Styling, positioning and metadata blocks are not preserved. Negative timestamps are rejected.