SRT / VTT Subtitle Converter
Convert between SRT and VTT subtitle formats and shift timing — all in your browser, nothing uploaded.
Need subtitles burned into your video?
Bitcut for iPhone adds animated subtitles directly to your vertical videos — perfect sync, custom styles and HD export.
How it works
Step 1
Paste or upload
Paste your SRT or VTT content, or open a subtitle file. The format is detected automatically.
Step 2
Choose output and shift
Pick SRT or VTT output. Optionally shift all timestamps forward or back by any number of seconds.
Step 3
Download
Click Convert, copy the result or download the converted subtitle file instantly.
FAQ
Does this tool upload my subtitles to a server?
No — everything runs locally in your browser. Your subtitle text never leaves your device.
What is the difference between SRT and VTT?
SRT (SubRip) is the most common format, supported by almost every video player. VTT (WebVTT) is the web standard, used in HTML5 video, YouTube and web-based players. The main differences are the header and how milliseconds are separated (comma vs dot).
Can I shift subtitle timing?
Yes — enter a positive number to push subtitles later, or a negative number to pull them earlier. For example, +1.5 shifts every cue forward by 1.5 seconds.
What if my subtitles are out of sync?
Use the timing shift to compensate. If the offset changes throughout the video, you may need a dedicated subtitle editor like Aegisub for frame-accurate sync.